Sánchez-Méndez JI et al., 2025·Front Reprod Health
Assisted reproductive technologies (ART) are widely used to address infertility; however, they are costly, associated with medical risks, and often yield suboptimal clinical outcomes. Natural Procreative Technology, also known as NaProTechnology (NPT), provides a systematic and integrative approach to infertility by thoroughly identifying and treating underlying medical conditions to restore the couple's natural fertility potential. Despite its promise, real-world data on NPT effectiveness remain limited. The objective of this study is to evaluate the take-home baby rate in a large population of infertile couples treated with NPT and to synthesize findings from previously published studies. A retrospective cohort study was conducted involving 1,310 infertile couples treated at a specialized fertility clinic in Spain over a 5-year period. Participants presented with primary or secondary infertility or recurrent pregnancy loss. Clinical data, diagnoses, and outcomes were analyzed, including surgical interventions and treatment duration. The mean age of women and men was 35.0 (SD 4.4) and 36.9 (SD 5.3) years, respectively. Primary infertility was the most common subtype (73.5%), the median infertility duration was 24 months, and prior ART attempts were recorded in 27.5% of couples. Mean number of diagnoses per couple was 2.5 (SD 1.3). The crude take-home baby rate was 35.3% (N = 463). Independent predictors of successful take-home baby included female age, recurrent pregnancy loss as the reason for consultation, duration of infertility, and the presence of endometriosis, hormonal dysfunction, male factor, and endometrial disorders as diagnoses. Considering a median duration of NPT of 10.9 months (range 8.1-17.0), the adjusted cumulative take-home baby rate was 62.1%. Rates varied significantly by female age, with higher success 83.7% at 18-30 years, 53.3% at 36-40 years, and 24.4% over 40 years. A sensitivity analysis was performed to assess the impact of dropout assumptions on cumulative pregnancy rates. Nearly one-third of patients underwent surgery, most commonly hysteroscopy and/or laparoscopy. In this cohort, NPT was associated with a notably high take-home baby rate in an infertile population with unfavorable prognostic factors, including advanced maternal age, prolonged duration of infertility, or previous failed attempts at conventional ART procedures.
NaProTECHNOLOGYFoundational PrinciplesClinical ApplicationRestorative Approaches
Open Access
In 1972, a seminal article was published demonstrating that women, adequately trained, could detect the approach of ovulation in the fertile window of their menstrual cycle. It was demonstrated that the symptoms perceived by women at the vulva correlate closely with changes in steroid hormone levels associated with folliculogenesis and the luteal phase. The fertility charting performed by women trained to recognize vulvar symptoms associated with hormonal changes serves as an instrument for detecting potential pathologies and monitoring the effects of treatment These findings established the biological foundations of a tool of fertility awareness tracking that has facilitated the development of restorative reproductive medicine (RRM): an approach that can be applied to identify and treat the underlying causes of infertility/subfertility.
Several core characteristics—or foundational pillars—of the RRM approach to fertility can be identified. a commitment to respecting healthy physiological processes, comprehensive health care for both the couple and the potential embryo, and the provision of education and continuous support throughout the therapeutic process.
This commentary aims to elucidate the interplay of these foundational pillars by drawing upon evidence from peer-reviewed biomedical literature. Finally, the challenges faced by RRM in strengthening its scientific foundations, engaging with the broader scientific community, and promoting the dissemination of this approach are described.
NaProTECHNOLOGYRestorative Reproductive Medicine OverviewDefinition and FrameworkBiomarker-Based Medical Evaluation
Open Access
Welcome to the Journal of Restorative Reproductive Medicine, the official journal of the International Institute for Restorative Reproductive Medicine! JRRM is a peer-reviewed, open-access medical journal for clinicians, scientists, professionals, and patients. Our vision is that JRRM will disseminate and promote evidence-based information to support and restore human fertility and reproductive health. Restorative reproductive medicine can be defined as approaches to systematically identify and treat underlying health conditions contributing to reproductive dysfunction and suboptimal reproductive health.1,2 In the case of subfertility, the aim is to restore the ability to have a healthy live birth, starting with natural intercourse in the fertile window.3 Consistent with this, JRRM approaches subfertility and recurrent miscarriage as related chronic conditions with many possible underlying contributors, including medical conditions, lifestyle, and environmental factors. The same framework applies to other conditions affected by or affecting human reproductive health, which is intertwined with somatic health.4-6 JRRM is particularly interested in articles from clinical medicine, physiology, epidemiology, data science, social sciences, and public health. Relevant clinical domains include, but are not limited to gynecology, andrology, endocrinology, infertility, midwifery, primary care, fertility cycle tracking. Occasionally, basic science or animal studies might be considered for publication, if they directly relate to the vision of JRRM. Articles not considered relevant to this journal include those focusing on the humanities or medical ethics, or research that does not focus on a restorative approach to human fertility and reproductive health. JRRM builds on a long history of tracking ovulation and the fertile window with fertility biomarkers, originally with the aim of natural regulation of fertility.7-10 In the past few decades, clinicians and investigators have explored the power and potential of applying these tools to medical evaluation and treatment.11-13 JRRM seeks to highlight and accelerate the development of scientific evidence linking fertility biomarkers and health. There are a growing number of high-quality journals related to human reproduction. JRRM focuses uniquely on restorative approaches to investigation and treatment, which often get less attention. There is a wide variety of motivations for the interest and engagement of patients and professionals in restorative preferences for less invasive natural approaches, commitments to patient empowerment, seeking answers for what is wrong, concerns about access and quality, reducing costs, and ethical and religious commitments.14-16 We all can benefit from a diversity of perspectives in the service of patients.17 All motivations are welcome at JRRM, as we focus together on a restorative approach to fertility and reproductive health
No standard criteria exist for how to perform a diagnostic laparoscopy. This case series provides evidence of the importance of standardized, reproducible techniques. A single non-oncologic gynecologic surgeon used Near-Contact Laparoscopy (NCL) and Systematic Mapping of the Abdomen and Pelvis (S-MAP) techniques, resulting in the incidental finding and curative treatment of 4 rare cancers over 3 years. Three were neuroendocrine tumors of the appendix (incidence 0.95/100,000; probability of 3 0.0000000001). The fourth was a 2 mm well-differentiated papillary mesothelioma (WDPM). All 4 were cured. 3 of 3 infertile patients subsequently achieved pregnancy. The NCL technique was originally coined by Dr. Redwine (PMID: 3190209). The S-MAP method was described in the NaProTechnology textbook by Dr. Thomas Hilgers, and the S-MAP term coined by this author. Case D used robotic-assisted laser excision. Standardization should be incorporated as the gold standard.
NaProTECHNOLOGYHormonal SupplementationDHEA TreatmentFemale
Open Access
Hypoandrogenemia is not usually considered as a potential cause of recurrent miscarriage. We present the case of a 30-year-old female with 6 previous pregnancies resulting in one live birth and 5 pregnancy losses, including fetal demise at 24 weeks gestation. She had standard investigations after her 4th loss, at a specialized miscarriage clinic. Lupus anticoagulant, anticardiolipin antibodies, thyroid function, parental karyotypes were all normal. Fetal products confirmed triploidy for her 4th miscarriage at 16 weeks gestation. She was reassured and advised to conceive again but had fetal demise after 24 weeks gestation. This was her 5th pregnancy loss with no explanation. She attended our Restorative Reproductive Medicine (RRM) clinic in January 2022. In addition to poor follicle function, we found hypoandrogenemia for the first time. Treatment included follicle stimulation with clomiphene and DHEA 25 mg twice daily pre-conception with DHEA 20 mg once daily maintained throughout pregnancy. She delivered a healthy baby boy by cesarean section at 36 weeks gestation in November 2023. Hypoandrogenemia should be considered as a contributory factor for women with recurrent miscarriage or late pregnancy loss. Restoration of androgens to normal levels with oral DHEA is safe and can improve pregnancy outcome.
Polycystic ovary syndrome (PCOS) is the most common cause of anovulatory infertility. Absent, impaired, or rare ovulation induces progesterone deficiency in the luteal phase, which is a critical problem in PCOS. A usual pattern of progesterone administration from a fixed and arbitrary pre-determined day of a menstrual cycle may preserve infertility but can easily be avoided. We present the case of a 29-year-old infertile woman who had been ineffectively treated for over two years. We introduced a line of therapy that was suited to her individual menstrual cycle by implementing biomarker recording. Supplementation based on a standardized observation of the basal body temperature (BBT) and cervical mucus stopped the vicious circle of absent ovulation and hyperandrogenism, restoring regular bleeding, ovulation cycles, and fertility. The implementation of a reliable fertility awareness method (FAM), accompanied by a standardized teaching methodology and periodic review of the observations recorded by the patient, validated through an ultrasound examination and plasma gonadotropins, estrogens, and progesterone concentrations, is key to achieving therapeutic success. The presented case is an example of a clinical vignette for many patients who have successfully managed to improve their fertility and pregnancy outcomes by applying the principles of a personalized treatment approach together with gestagens by recording their fertility biomarkers.
This article is a case study illuminating the experience of a cradle Catholic who pursued a career in the field of Assisted Reproductive Technology (ART) as a laboratory director and embryologist. Twenty years after leaving the field, the observations leading to the crisis of conscience are further amplified by the reports of social, legal, ethical, and medical consequences of the technology. These consequences are explored in detail and can serve as a mini-review of the published scientific literature describing the obstetrical complications, peri-natal outcomes, and the long-term health effects on the offspring. This paper provides the documented evidence that can be used by the religious and medical community for shepherding the flock. The disordered approach to patient care is evidenced by five serious consequences resulting from the use of the technology. These include multiple pregnancy and selective reduction, abandoned and discarded embryos, adverse health effects to the women and children, legal and ethical problems, and human experimentation. An explanation for the adverse consequences can be found by exploring and applying the principles of Natural Law. Natural Law, as embraced by the Catholic Church, can be used as a starting point for conversion of heart for many who struggle with the immorality of ART. Deterring use of the technology coupled with increased motivation by scientist and health professionals to pursue restorative approaches within a moral framework offer our best solution to the treatment of infertility. Natural Law and the consequences of violating it provide evidence that science and medicine should not be practiced in a vacuum void of ethical and moral boundaries grounded in divine Wisdom.
Miscarriage is defined as spontaneous loss of pregnancy prior to 20 weeks gestation. With an estimated risk of 15% of clinically confirmed pregnancies ending in miscarriage, it is the most common adverse event in pregnancy. Woman's age is the primary risk factor for miscarriage, while medical conditions, including hormonal abnormalities, are also associated. Progesterone is essential for maintaining pregnancy. A short luteal phase may reflect inadequate levels of progesterone production, but it is unclear whether a short luteal phase correlates with an increase in the risk of miscarriage. Using a cohort study design, we conducted a secondary data analysis from four cohorts of couples who used a standardized protocol to track biomarkers of the female cycles. A short luteal phase was defined as less than 10 days, with < 11, < 9, and < 8 days as alternate definitions in sensitivity analyses. We included women who experienced a pregnancy with a known outcome, identified the length of the luteal phase in up to 3 cycles prior to conception and assessed the relationship with miscarriage using a modified Poisson regression analysis, adjusting for demographic characteristics, smoking, alcohol use and previous pregnancy history. In our sample of 252 women; the overall miscarriage rate was 18.7%. The adjusted incident risk ratio of miscarriage in women who had at least one short luteal phase < 10 days, compared to those who had none, was 1.01 (95% CI: 0.57, 1.80) Similar null risk was found when assessing alternative lengths of short luteal phase. Women who had short luteal phases < 10 days in all 3 cycles prior to the conception cycle had an incident risk ratio of 2.14 (95% CI: 0.7, 6.55). Our study found that a short luteal phase in the three cycles prior to conception was not associated with higher rates of miscarriage in an international cohort of women tracking their cycles, but our sample size was limited. Further research to determine if short luteal phases or luteal phase deficiency is associated with early pregnancy losses among preconception cohorts with daily tracking of cycle parameters, in addition to progesterone and human chorionic gonadotropin levels, is warranted. Additionally, future studies should include women with recurrent short luteal phases as a more likely risk factor than isolated short luteal phases.
What is the feasibility of a prospective protocol to follow subfertile couples being treated with natural procreative technology for up to 3 years at multiple clinical sites? Overall, clinical sites had missing data for about one-third of participants, the proportion of participants responding to follow-up questionnaires during time periods when participant compensation was available (about two-thirds) was double that of time periods when participant compensation was not available (about one-third) and follow-up information was most complete for pregnancies and births (obtained from both clinics and participants). Several retrospective single-clinic studies from Canada, Ireland and the USA, with subfertile couples receiving restorative reproductive medicine, mostly natural procreative technology, have reported adjusted cumulative live birth rates ranging from 29% to 66%, for treatment for up to 2 years, with a mean women's age of about 35 years. The international Natural Procreative Technology Evaluation and Surveillance of Treatment for Subfertility (iNEST) was designed as a multicenter, prospective cohort study, to enroll subfertile couples seeking treatment for live birth, assess baseline characteristics and follow them up for up to 3 years to report diagnoses, treatments and outcomes of pregnancy and live birth. In addition to obtaining data from medical record abstraction, we sent follow-up questionnaires to participants (both women and men) to obtain information about treatments and pregnancy outcomes, including whether they obtained treatment elsewhere. The study was conducted from 2006 to 2016, with a total of 10 clinics participating for at least some of the study period across four countries (Canada, Poland, UK and USA). The 834 participants were subfertile couples with the woman's age 18 years or more, not pregnant and seeking a live birth, with at least one clinic visit. Couples with known absolute infertility were excluded (i.e. bilateral tubal blockage, azoospermia). Most women were trained to use a standardized protocol for daily vulvar observation, description and recording of cervical mucus and vaginal bleeding (the Creighton Model FertilityCare System). Couples received medical and sometimes surgical evaluation and treatments aimed to restore and optimize female and male reproductive function, to facilitate in vivo conception. MAIN The mean age of women starting treatment was 34.0 years; among those with additional demographic data, 382/478 (80%) had 16 or more years of education, and 199/659 (30%) had a prior live birth. Across 10 clinical sites in four countries (mostly private clinical practices) with family physicians or obstetrician-gynecologists, data about clinic visits were submitted for 60% of participants, and diagnostic data for 77%. For data obtained directly from the couple, 59% of couples had at least one follow-up questionnaire, and the proportion of women and men responding to fill out the follow-up questionnaires was 69% and 67%, respectively, when participant financial compensation was available, compared to 38% and 33% when compensation was not available. Among all couples, 57% had at least one pregnancy and 44% at least one live birth during the follow-up time period, based on data obtained from clinic and/or participant questionnaires. All sites reported on female pelvic surgical procedures, and among all participants, 22% of females underwent a pelvic diagnostic and/or therapeutic procedure, predominantly laparoscopy and hysterosalpingography. Among the 643 (77%) of participants with diagnostic information, ovulation-related disorders were diagnosed in 87%, endometriosis in 31%, nutritional disorders in 47% and abnormalities of semen analysis in 24%. The mean number of diagnoses per couple was 4.7. LIMITATIONS The level of missing data was higher than anticipated, which limits both generalizability and the ability to study different components of treatment and prognosis. Loss to follow-up may also be differential and introduce bias for outcomes. Most of the participating clinicians were not surgeons, which limits the opportunity to study the impact of surgical interventions. Participants were geographically dispersed but relatively homogeneous with regard to socioeconomic status, which may limit the generalizability of current and future findings. Multicenter studies are key to understanding the outcomes of subfertility treatments beyond IVF or IUI in broader populations, and the association of different prognostic factors with outcomes. We anticipate that the iNEST study will provide insight for clinical and treatment factors associated with outcomes of pregnancy and live birth, with appropriate attention to potential biases (including adjustment for potential confounders, multiple imputation for missing data, sensitivity analysis and inverse probability weighting for potential differential loss to follow-up, and assessments for clinical site heterogeneity). Future studies adequate funding to compensate clinics and participants for robust data collection, including targeted randomized trials; or a scaled-down, registry-based approach with targeted data points, similar to the multiple national and regional ART registries. Funding for the study came from the International Institute for Restorative Reproductive Medicine, the University of Utah, Department of Family and Preventive Medicine, Health Studies Fund, the Primary Children's Medical Foundation, the Mary Cross Tippmann Foundation, the Atlas Foundation, the St. Augustine Foundation and the Women's Reproductive Health Foundation. The authors declare no competing interests. The iNEST study is registered at clinicaltrials.gov, NCT01363596.
Restorative reproductive medicine represents a comprehensive approach to subfertility (infertility and miscarriage) with investigations, diagnoses, and treatments combined with fertility charting to restore optimal reproductive function. Restorative reproductive medicine assumes that multiple factors need to be identified and treated (cycle optimization) for up to 12 cycles to achieve a successful pregnancy. Conception can occur during normal intercourse without intrauterine insemination or in vitro fertilization. A 35-year-old Croatian female presented for fertility treatment in May 2019 with a previous diagnosis of polycystic ovaries, infertility of 16 years duration, and 8 unsuccessful embryo transfers with in vitro fertilization and intracytoplasmic sperm injection. She was gravida 3 para 0, with 2 miscarriages after spontaneous conception at 5-6 weeks gestation in 2002 and 2004, followed by a miscarriage after in vitro fertilization at 12 weeks gestation in 2011. We initially found poor follicle function and suboptimal progesterone levels. Restorative reproductive medicine treatment resulted in conception after two cycles of treatment. This pregnancy ended in miscarriage at 7 weeks 4 days. Additional investigations found a balanced Robertsonian translocation (13, 14) and a uterine septum. We achieved repeat fertilization with restorative reproductive medicine after three cycles of treatment following resection of the uterine septum and ovulation induction with letrozole and human chorionic gonadotrophin. She had a full-term healthy pregnancy and live birth in 2021. We propose that a full evaluation of underlying factors, and up to 12 cycles of cycle optimization, should be offered to subfertile patients before considering in vitro fertilization treatment.
NaProTECHNOLOGYBiophysical PropertiesCervical MucusFertile Window Detection
Open Access
The principal objective of this study was to correlate biophysical properties of vaginal discharge present in the cervical mucus with the timing of the fertile window. In particular, we produce measures of the viscoelasticity of the cervical secretion using two methods. The first uses only the elasticity extracted from the Creighton Model Fertility Care System (CrMs) scale, calculated P-6 ovulation estimated day (OED) with respect to the peak day of the CrMs. The second uses a numerical method that takes into account the changes in viscoelasticity, but without reference to the peak day calculated using the CrMs model. Using both methods, twelve records were obtained from a single female subject. The methodology used to evaluate the viscoelasticity factor was by measuring the approximate length in centimeters (cm) of the vaginal discharge of cervical discharge. For this, the scale of the stretching graph established by observing the stretching of CrMS was used, taking into account the previous 6 days at peak day P-6. The first method, which we termed CFW (Clinical Fertile Window), uses a measure based on the approximate length (cm) of the maximal stretchiness of the vaginal discharge. The second method we termed SFW (Software-CrMS/strectching) (Software-based Fertile Window). The fertile window was detected correctly in 100% of the cases using either method, and a correlation value of 0.71 was observed between the two methods. We conclude that the assessment of viscoelasticity using SFW algorithm allowed in this pilot study to detect the fertile window and to describe the evolution pattern of cervical discharge throughout the fertile window. Our study provides support for the use of computational methods in detecting the fertile window, taking only into account the time evolution of the cervical discharge throughout the menstrual cycle.
NaProTECHNOLOGYComparison with ARTAssisted Reproduction AlternativesNatural Procreative Technology
Open Access
La progresiva medicalización de la infertilidad en las últimas tres décadas se corresponde con una creciente difusión de las Tecnologías de Reproducción Asistida (TRA), que han dejado en la sombra, casi por completo, otros enfoques más fisiológicos del tratamiento de la infertilidad, que tienen menos riesgos, son más económicos y, a la vez, igualmente efectivos. Este trabajo presenta un enfoque sistemático e la NaProTecnología (NPT), que tiene como objetivo optimizar las condiciones fisiológicas en cada ciclo menstrual, para permitir, de esta forma, una concepción por métodos naturales. Este método se postula como una mejor solución para el tratamiento de la infertilidad, desde un punto de vista que no sólo es más ético, sino que, además, es compatible con otros puntos de vistas religiosos, médicos, sociales, legales y ambientales. Los gobiernos deberían promover y financiar la NPT y, al mismo tiempo, las sociedades médicas y científicas deberían diseñar estudios para comparar de una manera justa la tasa de éxito, los costos y las complicaciones de la NPT en contraposición al método TRA tradicional.
Mankato Family Medicine Residency, University of Minnesota, Mankato, MN The corresponding author is Robert D. Jeske; [email protected]. The authors declare no conflicts of interest.
Ethics/PhilosophyProcreation and InfertilityRestorative vs Assisted ReproductionNatural Procreative Methods
Infertility is a worldwide problem today. The more conventional approach of medicine would be to diagnose the causes and correct them, so that the fertility potential of the couple would permit them to conceive naturally. However, since the advance of Assisted Reproductive Technologies, it has become a lucrative industry that seek to help anyone to procure a child. Lately, natural procreative processes such as NaProTechnology have arisen that can restore couples’ fertility potential through proper diagnosis and treatment. The Catholic Church prefers these latter approaches not only because they are truer to the nature of medical practice, but because they are more consistent with a healthy vision of human sexuality, procreation, and marriage.
Restorative reproductive medicine (RRM) seeks to identify and correct underlying causes and factors contributing to infertility and reproductive dysfunction. Many components of RRM are highly suitable for primary care practice. We studied the outcomes amongst couples who received restorative reproductive medicine treatment for infertility in a primary care setting. Two family physicians in Massachusetts trained in a systematic approach to RRM (natural procreative technology, or NaProTechnology) treated couples with infertility. We retrospectively reviewed the characteristics, diagnoses, treatments, and outcomes for all couples treated during the years 1989 to 2014. We compared pregnancy and live birth by clinical characteristics using Kaplan-Meier analysis. We employed the Fleming-Harrington weighted Renyi test or the logrank test to compare the cumulative proportion with pregnancy or with live birth. Among 370 couples beginning treatment for infertility, the mean age was 34.8 years, the mean prior time trying to conceive was 2.7 years, and 27% had a prior live birth. The mean number of diagnoses per couple was 4.9. Treatment components included fertility tracking with the Creighton Model FertilityCare System (80%); medications to enhance cervical mucus production (81%), to stimulate ovulation (62%), or to support the luteal phase (75%); and referral to female laparoscopy by a surgeon specializing in endometriosis (46%). The cumulative live birth rate at 2 years was 29% overall; this was significantly higher for women under age 35 (34%), and for women with body mass index < 25 (40%). There were 2 sets of twins and no higher-order multiple gestations. Of the 63 births with data available, 58 (92%) occurred at term. Family physicians can provide a RRM approach for infertility to identify underlying causes and promote healthy term live births. Younger women and women with body mass index < 25 are more likely to have a live birth.
Ethics/PhilosophyCatholic BioethicsEthical Alternative to ARTNaProTECHNOLOGY
Open Access
This paper looks at the ethics of assisted reproductive technology (ART) from the perspective of the Catholic Church. The three criteria of evaluation of the ethics of ART are the right to life and physical integrity of human beings, the unity of marriage, and the value of human sexuality. The paper examines the arguments based on these criteria carefully, as they apply to in vitro fertilization which is the most common ART method. It concludes that most ART methods would be unacceptable, but there are new alternatives like NaProTechnology that is promising for infertile couples.
NaProTECHNOLOGYEffectiveness and EthicsDiagnostic Applications
NaProTECHNOLOGY – a chance for offspring or fraud? In the media space in Poland, you can meet the concept of Naprotechnology as an alternative to the in vitro procedure. Often, many myths and untruths appear in the discussion regarding this method of treatment. Naprotechnology is a new look at the health of women and men created by prof. Thomas Hilgers. It takes into account natural fertility biomarkers thanks to observation with the Creighton Model based on the female mucus. At every stage of diagnosis and treatment, Naprotechnology respects human life from the moment of conception and the mutual dignity of the spouses. It also does not use assisted reproductive procedures for ethical reasons. Naprotechnology is part of the broader scientific discipline of restorative medicine in infertility. Thanks to the accurate diagnosis and observation of the cycle, it is possible to correctly diagnose the cause of infertility. A proper diagnosis is the starting point for the implementation of specialized pharmacological and surgical treatment for both women and men. Properly used Naprotechnology and restorative medicine are highly effective in treating marital infertility. W przestrzeni medialnej w Polsce można spotkać pojęcie Naprotechnologii jako alternatywy dla procedury in vitro. Często w dyskusji pojawia się wiele mitów i nieprawdy dotyczących takiego sposobu leczenia. Naprotechnologia, stworzona przez prof. Thomasa Hilgersa, jest nowym spojrzeniem na zdrowie kobiety i mężczyzny. Uwzględnia ona naturalne biomarkery płodności dzięki obserwacji za pomocą Modelu Creighton bazującego na kobiecym śluzie. Na każdym etapie diagnostyki i leczenia Naprotechnologia szanuje ludzkie życie od samego poczęcia oraz wzajemną godność małżonków. Nie stosuje ona też procedur wspomaganego rozrodu z powodów etycznych. Naprotechnologia jest częścią szerszej dyscypliny naukowej, jaką jest przyczynowe leczenie niepłodności. Dzięki dokładnej diagnostyce i obserwacji cyklu możliwe jest postawienie prawidłowej diagnozy dotyczącej przyczyny niepłodności. Właściwa diagnoza jest punktem wyjścia dla wdrożenia specjalistycznego leczenia farmakologicznego i chirurgicznego zarówno wobec kobiety, jak i mężczyzny. Prawidłowo stosowana Naprotechnologia i przyczynowe leczenie niepłodności cechują się wysoką skutecznością leczenia niepłodności małżeńskiej.
Infertility affects one in 16 married women in the United States where 12.7% of these seek treatment. The stress of infertility and treatment is known to impact marital satisfaction, which can be further complicated by personal and religious beliefs regarding the ethics of some assistive reproductive technologies. A morally acceptable approach to infertility diagnosis and treatment is natural procreative technology or NaProTECHNOLOGY (NPT) using the Creighton Model FertilityCare™ System. A quantitative, descriptive study utilizing demographic surveys and the Index of Marital Satisfaction found that couples using NPT reported marital satisfaction.
Infertility affects \~20% of the couples in the world. Assisted reproductive technologies (ARTs) are currently the most common treatment option for infertility. Nevertheless, ARTs may be associated with complications for mothers and/or offspring. Natural procreative technology (NaProTechnology) is a natural treatment which minimizes these risks by seeking to identify the causes of infertility to enable better treatments. This narrative review summarizes the complications related to ARTs and clarifies how the NaProTechnology approach can help ARTs to achieve better results or be used in alternative to ARTs. Data in the literature indicate that NaProTechnology is a natural approach for treating infertility. The percentage of live births obtained by NaProTechnology is similar to that of ARTs. An extensive search for the genetic defects causing infertility or subfertility through genetic testing can help both ARTs and NaProTechnology to achieve successful pregnancies. By discovering the underlying causes of infertility, genetic tests enable better family counseling, like the implications of transmitting risk- and disease-alleles to future generations.
This study reports on 632 cycles from 105 women who were using the CREIGHTON MODEL FertilityCare™ System to avoid pregnancy and had either a serious reason to avoid pregnancy or some degree of a lack of confidence. A progesterone level was drawn on the third day after the Peak Day as they were charting, and if the progesterone level was 2.3 ng/mL or greater, then ovulation was determined to have passed. If the level was greater than 3.0 ng/mL, this indicated that an absolute period of infertility had begun. In these cases, no pregnancies were observed. In the 27 cycles in which a specific follow-up relative to pregnancy could not be definitively determined, the progesterone levels in all cases were 2.3 ng/mL or greater with 23 of the 27 cycles being 3.1 ng/mL or greater. It is highly unlikely that any of those became pregnant as well. These cycles were collected over thirteen years (2004-2016). Two case presentations are also a part of this article of two families in which the couples had very serious reasons to avoid pregnancy. In these two couples, each of the women was multi-gravid and had no evidence of subfertility or infertility. They used the family planning progesterone level (the Peak Day +3 progesterone level) for a total of 167 cycles over a number of years successfully without a subsequent pregnancy.
This article presents a thirteen-year effort to evaluate the serum progesterone level on the third day after the Peak Day as observed by women charting the CREIGHTON MODEL FertilityCare™ System. It is known that the Peak Day is associated with ovulation, and if the progesterone reaches a certain level, then an absolute period of infertility should follow. In fact, this is what this study reflects.
Previous research has demonstrated that women instructed in fertility awareness methods can identify the Peak Day of cervical mucus discharge for each menstrual cycle, and the Peak Day has high agreement with other indicators of the day of ovulation. However, previous studies enrolled experienced users of fertility awareness methods or were not fully blinded. To assess the agreement between cervical mucus Peak Day identified by fertile women without prior experience on assessing cervical mucus discharge with the estimated day of ovulation (1 day after urine luteinising hormone surge). This study is a secondary analysis of data from a randomised trial of the Creighton Model FertilityCare(TM) System (CrM), conducted 2003-2006, for women trying to conceive. Women who had no prior experience tracking cervical mucus recorded vulvar observations daily using a standardised assessment of mucus characteristics for up to seven menstrual cycles. Four approaches were used to identify the Peak Day. The referent day was defined as one day after the first identified day of luteinising hormone (LH) surge in the urine, assessed blindly. The percentage of agreement between the Peak Day and the referent day of ovulation was calculated. Fifty-seven women with 187 complete cycles were included. A Peak Day was identified in 117 (63%) cycles by women, 185 (99%) cycles by experts, and 187 (100%) by computer algorithm. The woman-picked Peak Day was the same as the referent day in 25% of 117 cycles, within ±1 day in 58% of cycles, ±2 days in 84%, ±3 days in 87%, and ±4 days in 92%. The ±1 day and ± 4 days' agreement was 50% and 90% for the expert-picked and 47% and 87% for the computer-picked Peak Day, respectively. Women's daily tracking of cervical mucus is a low-cost alternative for identifying the estimated day of ovulation.
Ethics/PhilosophyProcreation and Natural LawTheological FoundationsReproductive Ethics
Open Access
Immersed in the world dominated by pragmatism, contemporary man seems to be thinking and functioning only according to the criteria of effective acting. However, life experience, philosophical reflection, and the truth of Revelation lead to the conclusion that the laws of nature must be respected in the name of care for man and for one’s genuine good, even though they may, in certain cases, limit the effectiveness of acting and the possibility to acquire current profit. This article justifies the necessity to respect natural law in the sphere of transmission of human life. The starting point of this scientific reflection is the theological vision of values and of the inviolability of human life on the basis of the description of creation from the Book of Genesis. The fundamental truths and moral norms are being neglected nowadays as—being so proud of modern technological achievements—man makes himself the creator and the master of human life. Although such activities seem impressive from the scientific point of view, they actually result in a number of serious contemporary and future threats. The second part of the article presents alarming aspects of artificial interventions in the sphere of life transmission. By exposing the threats and by trying to prevent them in the sphere of infertility treatment, the Church opposes the methods of artificial insemination and becomes engaged in promoting naprotechnology which is a method that expresses genuine humanism, and which gives hope not only to the parents who want to have a baby but also to the mankind that longs for propitious future.
NaProTECHNOLOGYOverview and Clinical ApplicationsWomen's Healthcare
Some authorities have found that, when the mean follicular diameter is >25 mm, the follicle is considered large, and these authorities are convinced that large follicles are biomarkers to ovarian pathology. Several studies have been carried out to determine the optimal maximum follicular size (MFS) that will be adequate before the use of human chorionic gonadotropin trigger to induce ovulation. None of these studies have considered the woman's age as a factor. An in vitro fertilization-based study has also shown that large leading follicles did not result in higher percentage of matured oocytes, and they even result in a lower live birth rate; however, we note that the ages of the women were not specifically mentioned in connection with the problems of large follicle. We set out in this study to evaluate the relationship between the MFS and the woman's age both in our control group (fertile women) Group (A) and in the women attending fertility clinic Group (B). Using the Creighton Model Fertility Care System and NaProTECHNOLOGY, it was possible to determine when to start follicular tracking and also determine ultrasound diagnosis of ovulation by recording the MFS and the reduced size. In both Group A and Group B, we discovered that the MFS reduces as woman's age increases. We also discovered that the average MFS in the Group B was higher for age compared with the Group A (P = 0.0043). There was also an association between these bigger follicles for age and low mid-luteal progesterone. This is probably the first study that describes the association of follicular size and woman's age and its possible link with ovulation defects. We have proposed that this phenomenon of large matured maximum follicle for age could be a contributory factor to infertility and miscarriages. We propose further studies to verify this hypothesis. Despite the high percentage of complete rupturing of follicles in the AB cycles in the Group (B) there are very high proportion having low mid luteal (P+7) Progesterone. This may be due to pathologies associated with big follicles for woman's age. The E2/Pg ratio study in luteal phase strongly suggested that the women in Group (B) that may have fertility challenge are those in subgroup of AB in Group (B). Therefore matured follicular size should be considered with the woman's age. If the follicles grows bigger away from the range for a woman's age it may be the marker for infertility or reproductive health challenges.
Background. Infertility is a disease of the reproductive system manifesting with the inability to get pregnant within a minimum of 12 months. In diagnosing infertility and the therapeutic process, pharmacotherapy, surgery and assisted reproductive technology are used. In Poland, the NaProTechnology program is also available, which is a diagnostic and therapeutic method of reproductive health disorders without utilizing assisted reproduction. The midwife can play an important role in the care of the infertile couple.
NaProTECHNOLOGYSeminary and Clergy FormationNFP Curriculum OutcomesHumanae Vitae Implementation
A special course on Marriage, the Family and Human Sexuality was established at Kenrick-Glennon Seminary in St. Louis so as to assist the seminarians in their better understanding of the Church's teaching relative to natural methods of family planning and women's health care. This article compares the response at the beginning of this three-credit semester course to the same seven-item questionnaire given at the conclusion of the course. The preand postcourse scores were calculated for each of the questions. The scores obtained after the course were all significantly higher than they were before the course with p values ranging from 0.01 to <0.0001. Four of the items showed marked improvement including an understanding of the church's teaching related to natural methods, current methods of natural family planning, the impact of a natural method on a couple's marriage, and also the impact of a natural method on family life. Statistically significant improvement was also seen in their understanding of the topic of natural family planning and the Creighton Model System and its relevance toward the seminarian's vocation, the use of the methods to either achieve or avoid pregnancy, and how contraception and abortion are linked. In these last three items, the level of statistical significance was quite high, although not as high as the other four items. There were 104 seminarians over an eight-year period of time, who provided answers to these questions, both before and after the course. This course was modeled after a course that was initiated at the Pope Paul VI Institute for the Study of Human Reproduction, which was for priests, seminarians, and Catholic leaders, titled Love & Life Unlimited. This is an evaluation of a ten-point, seven-question questionnaire that was utilized at the beginning of a course at Kenrick Seminary in Marriage, Sexuality, Creighton Model and NaProTECHNOLOGY. The same questionnaire was given to the students at the beginning of the course and then two to three months later at the conclusion of the three-credit course. The results show that there is a significant improvement in the seminarians' knowledge and general attitude about natural methods of family planning and suggests that such courses would be beneficial to establish in seminaries throughout the country.
NaProTECHNOLOGYPost-IVF RRM TreatmentLive Birth RatesRRM vs IVF Outcomes
Open Access
To determine the live birth rate for patients who chose to undergo treatment with Restorative Reproductive Medicine (RRM) after previous IVF (includes ICSI). To look at birth outcomes with RRM after IVF, particularly rates of twin and higher order pregnancies, premature birth, low birth weight, and potential cost savings achieved with RRM. Two outpatient clinics in Ireland providing advanced RRM treatment of infertility. All patients presenting between January 2004 and January 2010, with a history of infertility and previous IVF treatment were included if they proceeded beyond the initial consultation and began treatment. Main outcome is live birth per couple calculated using life table analysis. 403 patients met the study criteria, among which 74 had a subsequent live birth. These women had significant negative predictive characteristics for advanced reproductive age (average 37.2 years), an average of 5.8 years of infertility with 2.1 (range 1-9) previous IVF attempts, with only 5% having previously had a live birth from IVF. Despite these undesirable prognostic indicators, the overall RRM live birth rate was 32.1% (crude 18.4%). Women aged 35-38 had a live birth rate of 37.5% (crude 23.6%) and older women over 40 had a live birth rate of 27.4% (crude 16.0%). The average birth weight was 3374g (7lb 7oz) with 92% being born at 37+ weeks and no very low birth weight babies. There was only one twin pregnancy in the study population; the potential health care savings for avoidable multiple pregnancies in these patients was estimated at £205 672 (USD$284 915). Patients who have already tried IVF can achieve comparable live birth outcomes with RRM compared to another cycle of IVF. RRM has a low risk of twin or multiple births, and very good neonatal outcomes with a potential cost savings to the health care system.
Malaria is prevalent in Nigeria, and artemether + lumefantrine (artemisinin-based combination therapy [ACT]) is drug of choice in treatment of uncomplicated cases. ACT is contraindicated in early pregnancy. They release-free radicals that can compromise female fertility. Infertility and its associated complications such as miscarriages, abnormal gestation, and unstable marriages seem to be on the increase. This study aims at evaluating the effect of ACT on female fertility. The significance of this research is to draw the attention of fertility care givers to this possible cause of infertility and fertility challenges. Creighton Model FertilityCare System and NaProTECHNOLOGY are simply technologies that can be used to assess female fertility. They are used in this study to assess the effect of ACT administered at different stages of menstrual cycles of three selected fertile adult females. The results are interpreted on the background of standard Creighton model chart. This study has shown that ACT has a significant fertility deteriorating effect on the women. It caused ovulation defect and diagnosed as partial rupture syndrome in the very cycle of use and in the first cycle after use. It also significantly reduced cervical mucus production and significantly reduced luteal phase progesterone production with an associated significant increase of luteal phase estrogen production. ACT use as antimalarial may be a possible cause of infertility and fertility challenges in women.
NaProTECHNOLOGYCulture of LifeResponsible ParenthoodCreighton Model System
Open Access
NaProTECHNOLOGY is a new field of medicine specializing in the promotion of human procreation. Its foundation is a teaching system called the Creighton Model Fertility Care System. It is based on the ability to observe and record biological biomarkers, enabling spouses to recognize and understand the naturally occurring cycle of fertility and infertility. The spouses can use their acquired knowledge both for achiving pregnancy and avoiding pregnancy. The system also enables them to broaden their knowledge to better understand sexuality and deepen their mutual love. It also plays an important role in diagnosing and treating reproductive health according to the natural cycle of women. NaProTECHNOLOGY is involved in building a "new culture of life" through integral concern for human fertility by restoring natural procreation and respecting the principles of responsible parenthood.
NaProTECHNOLOGYHPV PreventionSexual Health EducationSexuality and Personhood
Open Access
En la actualidad hay suficiente evidencia científica que relaciona directamente adquisición, exposición y prevalencia del virus del papiloma humano (VPH) con el cáncer del cuello de uterino. Por ello, el artículo aborda el VPH en la mujer teniendo en cuenta la naprotecnología, que permite conjugar evidencia científica y planteamientos éticos. Se busca que se tengan en cuenta tanto el aspecto biológico de la sexualidad como la capacidad de hacerse persona en su núcleo sexual. De ahí que se analicen programas dirigidos a la educación sexual, basados tanto en la prevención sanitaria como en la antropología de la sexualidad, y apoyados por las instituciones familiares, que han demostrado una mejor acogida ante los riesgos de las enfermedades de transmisión sexual, y entre ellas la infección por el VPH.
NaProTECHNOLOGYHuman Dignity in Infertility TreatmentAssisted Reproduction CritiqueNaProTECHNOLOGY vs ART
Open Access
The article raises the issue of today’s application of assisted (artificial) reproduction methods, which are incom-patible with human dignity. The authors articulate the principles of human dignity, which are formulated as an evaluation tool of criteria and them revealing system of indicators in the assessed object. The article compares Naprotechnology as a contemporary holistic method of diagnosis and treatment of infertility, which comprises therapeutic, surgical and fertility awareness method, with methods of assisted reproduction and identifies their medical and ethical differences. The project of the Assisted Reproduction Law of the Republic of Lithuania is evaluated in the aspect of human dignity as well.
NaProTECHNOLOGYPhilippinesFinancial ConstraintsDeveloping Countries
Flores R, 2016·Scholars Academic Journal of Biosciences
The latest retrievable data about infertility in the Philippines was made available to the public by Merck Serono, a private pharmaceutical company who commissioned the survey in 2011. The survey was conducted by Synovate in 100 participating households in the Philippines, particularly in key cities located in Luzon, Visayas and Mindanao. The survey results revealed that one out of ten Filipino couples are suffering from infertility. And these couples are not seeking treatment (1) financial constraints; (2) time constraints; and (3) the patient’s belief. Of all these, financial constraints, at 86%, is the primary reason why infertile couples are not seeking treatment. In addition to this data, the Chief of The Medical City’s Reproductive Medicine, Infertility and Gynecologic Endoscopy, Dr. Marc Anthony Ancheta, further reveals that “some 35 to 40% of a couple’s inablity to conceive a child are due to female factors; while the other 35 to 40% could be attributed to male factors.” While male factor infertility is also deserving of proper attention, it is the female factor infertility that should receive greater attention and focus in terms of treatment. Why? Because, primarily, the female’s reproductive cycle is very complex and would need months and/or years to partially identify the underlying reason/s of infertility; and second, the female’s ability to conceive naturally will fall by 50% when she reached the age of 35. Therefore, there should be urgency in treating female factor infertility in an efficient, ethical and affordable way. And these conditions can be achieved by the use of NaPro Technology.
NaProTECHNOLOGYNurse-Midwifery IntegrationCollaborative Care
Open Access
Progesterone support in pregnancy has been in use for over 60 years, having received its start in the 1940s. Its initial use was in patients who had habitual spontaneous abortion caused by luteal phase deficiency. More recently, the administration of progesterone later in pregnancy has been considered to be justified because of an observed decrease in circulating progesterone with the onset of labor, an association of premature labor with decreased progesterone concentrations, and the observation that progesterone has a tocolytic effect. A considerable boost to the use of progestational agents to reduce preterm delivery was received with the publication of two papers which showed a significant reduction in preterm delivery rates with the prophylactic administration of either progesterone or 17-a hydroxyprogesterone caproate. Recently it has been shown, however, that its use is not universal. This may be related to the significant late sequelae that were documented following the in utero exposure of the fetus to the potent steroid diethylstilbestrol (DES) and that this bad experience cast “a long shadow,” In spite of this, the use of progesterone, at least in early pregnancy, is widespread in the various artificial reproductive programs and is growing in its use as an agent to reduce prematurity. Over the years, there has been an extraordinary amount of confusion related to the use of progesterone support in pregnancy. The Food & Drug Administration (FDA) created some of this confusion. In various labeling of progesterone products by the FDA, one of the contraindications to the use of oral progesterone is listed as “known or suspected pregnancy.” And, yet, no such contraindication is identified for the use of progesterone gel. In fact, progesterone gel is indicated for progesterone supplementation or replacement as a part of an assisted reproductive technology (ART) treatment program for infertile women with a progesterone deficiency. To make this even more confusing, oral progesterone, while it was contraindicated in “known or suspected pregnancy,” its official labeling stated that it “should be used during pregnancy only if indicated (see contraindications).” Also, up until very recently, there was a dire “warning” contained in the labeling for USP progesterone injection in sesame seed oil regarding an increased possibility of birth defects. An analysis of the fetal safety of isomolecular progesterone (Pregn-4-ene-3,20-dione) administration during the course of 1,310 pregnancies over a 35-year period of time (1979-2014) was undertaken to address this confusion.
NaProTECHNOLOGYAlternative to IVFEugenics and IVFNaProTECHNOLOGY vs IVF
Open Access
In vitro fertilization (IVF) is a method known almost all over the world, by which modern man is trying to cope with the problem of infertility. The aim of this article is to show the eugenic roots of in vitro and to attempt to reconciliate the supporters and opponents of this controversial procedure at a NaProTechnological plane. In order to achieve this, the author characterizes IVF from the technical, medical and legal point of view. Then, the article shows the relationship between the in vitro procedure and eugenic thought. The third section contextualizes the problem of artificial insemination in the contemporary, human uncritical faith in technological progress. The last part of this article directs the reader's attention towards NaProTechnology – a method of infertility treatement which can engage both the supporters and the opponents of IVF.
The Creighton Model FertilityCare System (CrMS) teaches women to identify days when intercourse is likely to result in pregnancy. We sought to assess the impact of the CrMS on time to pregnancy (TTP), via per-cycle pregnancy rates (fecundability). We conducted a parallel randomised trial at the University of Utah School of Medicine, 2003-06. Women ages 18-35 years, in a relationship of proven fertility, who desired to conceive, were block-randomised and stratified for age, with allocation concealment by opaque sequentially numbered sealed envelopes. The control group received the advice to have intercourse 2-3 times per week, and the intervention group received CrMS instruction. All women were asked to begin trying to conceive starting the second cycle in the study and were followed actively up to seven cycles, without blinding of research personnel. We calculated descriptive statistics and fecundability, and estimated Cox models for TTP. (Clinicaltrials.gov NCT00161395). There were 143 71 to the control group (all analysed) and 72 to the CrMS group (69 analysed). The adjusted hazard ratio for the influence of CrMS on TTP was 0.86 [95% confidence interval (CI): 0.53, 1.38]. Fecundability in cycles with intent to conceive was 31% in controls and 36% with CrMS (P = 0.32). By the first cycle, fecundability was 17% in controls, and 4% with CrMS (P = 0.02). No adverse events were reported. We found no significant impact of CrMS on TTP or fecundability, but fewer of the women receiving CrMS conceived by the first cycle.
NaProTECHNOLOGYConception OptimizationNatural Procreative TechnologyNatural vs Invasive Treatment
L’auto-osservazione e il follow-up grafico del ciclo mestruale in caso di presunta sterilita, aiutano a diagnosticare e trattare certe alterazioni ginecologiche, al fine di attuare il rapporto sessuale finalizzato ad ottimizzare concepimento. Attraverso queste procedure naturali (naprotecnologia), prive di aspetti negativi da un punto di vista etico, possiamo ottenere tassi di natalita che sono paragonabili, o addirittura superiori, a quelle ottenute con trattamenti invasivi. ---------- Self-observation and the graphic follow-up of the menstrual cycle in cases of supposed infertility, help to diagnose and treat certain gynaecological alterations in order to carry out the sexual intercourse focused on optimising conception. Through these natural procedures (Naprotechnology), with no ethical drawbacks, we can obtain birth rates that are comparable, or even higher, to those obtained with invasive treatments.
NaProTECHNOLOGYInfertility TreatmentAdhesion PreventionReproductive Medicine
In the last 50 years, a surge of reproductive technology has revolutionized the practice of obstetrics and gynecology. First, effective hormonal contraceptives were made available to the public in the 1960s and, since their debut, have been used to treat almost every gynecologic abnormality [1]. Second, in the past 30 years, infertility has largely been managed using assisted reproductive technologies (ART), primarily intrauterine insemination (IUI) with recourse to in vitro fertilization (IVF) when insemination fails [2]. As a result, the modus operandi in mainstream gynecology has been to suppress, or to bypass, the woman’s fertility cycle.
Physicians and patients who (1) conscientiously object to the therapeutic use of hormonal contraceptives on the grounds that it subjects patients to ineffective treatment of symptoms rather than treating their underlying disease and (2) morally oppose the ART approach to infertility on the grounds that it jettisons a loving act of marital intercourse, the one context worthy of the conception of a new human being, are now able to pursue an alternative approach that accords with their consciences. NaProTECHNOLOGY (an acronym for natural procreative technology) is a woman’s health science that encompasses a unique medical and surgical application of gynecology. The foundation of NPT is the Creighton Model FertilityCare System (CrMS), see Figure 1, the only prospective and standardized means of monitoring the various patterns of a woman’s menstrual and fertility cycle for the natural regulation of fertility.
For example, because it views infertility as a symptom rather than a disease, NPT seeks to diagnose and treat the underlying causes of infertility so that the couple can more successfully conceive within their own acts of intercourse, especially during peak-day-focused intercourse. NPT infertility protocols depend on patient-specific charting data. Some observations during the fertility cycle—dry, limited, or continuous mucus; short or variable post-peak phase; premenstrual spotting or tail-end brown bleeding—are external signs of possible underlying disease processes.
A medical interpretation of these abnormal CrMS observations leads to a targeted biochemical and hormonal evaluation, which in turn identifies decreased production of estrogenic cervical mucus, intermenstrual bleeding or spotting, short or variable luteal phases, and suboptimal levels of the ovarian hormones (estrogen or progesterone). Common treatments for these pathologies include induction or stimulation of ovulation, medications to enhance cervical mucus, and hormonal support in the luteal phase. When these NPT medical approaches to infertility were used in a study of 1,239 infertile couples, they resulted in a live birth rate similar to that of cohort ART treatments [3].
In many cases, medical applications of NPT are sufficient to treat infertility successfully; in other cases, surgical intervention is also required. Surgical NPT is a specialized form of gynecologic surgery the primary aim of which is to reconstruct the uterus, fallopian tubes, and ovaries. The ovarian wedge resection (surgical removal of a portion of an enlarged ovary to restore its normal size), for example, is effective in healing polycystic ovaries (contributing to the long-term treatment of some of the endocrine and menstrual cycle abnormalities associated with polycystic ovaries). It also brings the patient a 70 percent chance of pregnancy i.e., it is twice as effective as clomiphene [4].
A significant benefit of surgical NaProTECHNOLOGY is “near adhesion-free” surgery. One of the biggest pitfalls of surgery, of course, is the formation of postoperative adhesions, which can decrease tubal motility (adversely affecting fertility) and cause small bowel obstructions (that frequently require emergency reoperation) [5]. To prevent these complications, NPT surgical techniques pay meticulous attention to detail, take a systematic approach, and use Gore-Tex adhesion barriers [6]. Published Gore-Tex protocols reveal a statistically significant decrease in subsequent adhesion scores on second-look laparoscopy [7]. For some reason, the use of Gore-Tex has been overlooked in even the most recent adhesion prevention reviews [8]. One even laments that adhesion prevention is a “surprisingly neglected aspect of the treatment of endometriosis,” but the reviewers make no mention of the use of Gore-Tex as an adhesion barrier.
Other techniques of surgical NPT include laser vaporization and pelvic excision and repair surgery (PEARS) of peritoneal or ovarian endometriosis. PEARS is a form of plastic reconstructive surgery of the pelvis with the primary intent of removing diseased tissue within the pelvic organs and repairing organs in a way that does not form pelvic adhesions. PEARS can entail robot-assisted laparoscopy or laparotomy, minimizing postoperative adhesions and optimizing the patient’s chances for pregnancy.
The effectiveness of treating infertility with medical and surgical NPT is comparable to that of ART interventions. The cumulative live birth rate in patients receiving IVF is between 45-55% [10]. In a study population of 1,045 patients treated with NPT infertility protocols, more than 60 percent became pregnant within 24 months and nearly 70 percent within 36 months [11]. The overall �per-woman� NPT pregnancy rate is higher than that of ART due, in part, to the high rate of dropout or discontinuation in patients who undergo IVF treatment [12]. In addition, a meta-analysis comparing conventional surgery and IVF for treatment of endometriosis-related infertility found that the per-woman pregnancy rates with surgery were 55.3 percent while those with IVF were 9.9 percent [13]. However, while it is true patients treated with NPT have significantly lower overall fecundability (a 3.13 percent chance of conceiving within a given period) than those treated with IVF (13.3 percent), it is also true that the number of women who ultimately achieve a pregnancy with NPT is higher than the number who get pregnant using ART [14]. Thus, although achieving a live birth with NPT may take longer, it has a greater chance of occurring than with IVF.
For those interested in training in NPT, the Pope Paul VI Institute and Creighton University School of Medicine offer educational programs for those in primary care or ob/gyn (including fourth-year medical students) to train in the medical applications of NaProTECHNOLOGY [15]. They also offer a 1-year fellowship in the surgical applications of NPT for ob/gyns who have completed their residencies [16].
As the editor of the Anscombe Bioethics Centre's Issues in Reproductive and Sexual Ethics (Watt 2011), I was delighted to read Sr. Renee Mirkes’ generous review in th...
The current approach to infertility of assisted reproductive technology (ART) completely misses and then bypasses the evaluation and treatment of cervical factor infertility. In contrast, the Creighton Model Fertility Care System (CrMS), a method of fertility awareness that has the unique ability to quantify cervical mucus observations, and natural procreative technology (NaProTECHNOLOGY or NPT) directly evaluate and treat cervical factor infertility. The ART treatment of choice for cervical factor infertility--intrauterine insemination (IUI)--is also morally disparate from while the latter genuinely assists the infertile couple's act of sexual union to achieve its natural end of pregnancy, IUI replaces the natural act, depriving human conception of the one context worthy of the dignity of human life and procreation, a reciprocal self-gifting act of love between husband and wife. A renewed interest and focus on the direct evaluation and treatment of cervical factor infertility is needed.
NaProTECHNOLOGYART vs NaProTECHNOLOGYAssisted ReproductionNatural Procreation Methods
Open Access
Infertility is a significant and constantly increasing individual and social problem. It is estimated that at present it affects approx. 15 to 20 percent of couples. Inability to conceive a child elicits a range of unfavourable implications in the scope of emotional experiences, in the partner’s relationship and in a broader social perspective. Making a decision on undergoing diagnostics and infertility treatment is a difficult and often postponed moment for many couples. This is an expression of the escape model of dealing with a situation that threatens with a fall of self-esteem. However, if a couple reacts in a task-oriented way and participates in the diagnostic and therapeutic procedure, new doubts appear connected with the medical, psychological, social and ethical sphere. Infertility treatment sometimes prompts fear connected with the stripping of intimacy, loss of control over one’s body, possible complications and unsuccessful therapy. This article is an analysis of the medical and the other aspects of struggling with infertility with reference to two extremely different methods NaProTechnology as a process of assisting natural procreation and assisted reproductive techniques with a special consideration of in vitro fertilization.
To study the outcomes of women with infertility or miscarriage treated with natural procreative technology (NaProTechnology or NPT), a systematic medical approach to promoting conception in vivo; and to compare the outcomes with those previously published from a general practice in Ireland. Retrospective cohort study. An urban Canadian primary care practice in which the physician had a part-time practice in NPT. Couples with infertility or recurrent miscarriage who received treatment in the practice between August 2000 and July 2006. All couples were taught to identify the fertile time of their menstrual cycles using the Creighton Model FertilityCare System (CrMS) and completed a standard NPT evaluation. Many also received additional medical treatment to enhance conception in vivo. Live birth was the primary outcome; secondary outcomes included conceptions, multiple births, low birth weight, and prematurity. A total of 108 couples received NPT and were included in the analysis, of which 19 (18%) reported having 2 or more previously unexplained miscarriages. The average female age was 35.4 years. Couples had been attempting to conceive for a mean of 3.2 years. Twentytwo participants (20%) had previously given birth; 24 (22%) had previous intrauterine insemination; and 9 (8%) had previous assisted reproductive technology. The cumulative adjusted proportion of first live births for those completing up to 24 months of NPT treatment was 66 per 100 couples, and the crude proportion was 38%. The cumulative adjusted proportion of first conceptions was 73 per 100 couples, and the crude proportion was 47%. Of the 51 couples who conceived, 12 couples (24%) conceived with CrMS instruction alone, 35 (69%) conceived with CrMS and NPT medical treatment, and 4 (8%) conceived after additional surgical treatment. All births were singleton births; 54% were born at 37 weeks' gestation or later; and 78% had birth weights of 2500 g or greater. Natural procreative technology in a family physician's office was effective in treating infertility and miscarriage with outcomes that were comparable to those in an NPT general practice in Ireland. Larger multicentre prospective studies to compare NPT directly to other forms of infertility treatment are warranted.
Fertility AwarenessHormonal IndicatorsFollicular DevelopmentBiomarker-Based Methods
Open Access
El objetivo de este artículo es revisar los principales conceptos en la literatura acerca de la ventana de la fertilidad en pacientes con ciclos menstruales normales. El énfasis principal del artículo se ha dirigido al análisis de la teoría de Brown de la ovulación, revisar conceptos básicos de la ovulación, secreción y metabolismo de la hormona folículo estimulante, y al estudio clínico, ecográfico y bioquímicos del desarrollo folicular de la ventana de la fertilidad. Este artículo también repasa los biomarcadores clínicos y los diferentes metabolitos endocrinos que delimitan en la fase fértil del ciclo. Se revisan diferentes estudios en los cuales las valoraciones en suero y orina de los esteroides sexuales, han corroborado tener una correlación directa para enmarcar el período fértil. Actualmente tienen relevancia estos conocimientos en diferentes grupos de interés, sobre todo en mujeres con un alto nivel de motivación interesadas en el reconocimiento de su fertilidad, las cuales pueden beneficiarse mediante la aplicación de conocimientos técnicos actuales que detectan la ventana fértil. También estos conocimientos suelen cobrar importancia en aquellas personas que pertenecen a programas de regulación de la fertilidad (PRF), con intención de distanciar un embarazo, o de reconocer el periodo fértil del ciclo para conseguir un embarazo espontáneamente, o mediante programas de NaProTecnología. Otros grupos de interés, son aquellos en los cuales no se tiene experiencia en cursos de PRF, pero desean mejorar sus conocimientos en el reconocimiento de la fertilidad por medio de una breve entrevista, o por medio de cursos de orientación familiar.
The paper presents the main concepts of NaProTECHNOLOGY. Such problems as family planning effectiveness, targeted hormonal assessment of the menstrual cycle, ovarian hormone and target organ dysfunction, disorders of human ovulation, cooperative progesterone replacement therapy, premenstrual syndrome, postpartum depression, unusual bleeding, infertility and antiadhesion therapy are discussed.
The paper presents the main concepts of NaProTECHNOLOGY. Such problems as family planning effectiveness, targeted hormonal assessment of the menstrual cycle, ovarian hormone and target organ dysfucntion, disorders of human ovulation, cooperative progesterone replacement therapy, premustrual syndrome, postpartum depression, unusual bleeding, infertility and antiadhesion therapy are discussed.
NaProTECHNOLOGYComprehensive Women's HealthAlternative to IVFClinical Outcomes
Dr. Thomas W. Hilgers draws on decades of medical experience to provide educational and revolutionary insights into the world of women's health. The NaPro Technology Revolution provides real solutions to real problems such as infertility, repetitive miscarriage, menstrual cramps, postpartum depression, PMS, prematurity prevention, ovarian cysts, hormonal abnormalities, irregular/abnormal bleeding, chronic discharges, polycystic ovarian disease, and family planning. Hilgers sheds light on abnormal ovarian function, an issue that millions of women unknowingly suffer from. His methods have proven to assist infertile couples nearly three times more successfully than those who use In Vitro Fertilization, without the dangers of early abortions, frozen embryos, or high rates of multiple pregnancy. The NaProTechnology Prematurity Prevention Program cuts the rate from the national 12.7% to 7%. The NaPro Technology Revolution discusses what every woman has a right to know about her body, her health, and her future!
A somewhat pessimistic view on the prevention of postsurgical adhesions has developed over the years because rigorous surgical approaches may still result in the formation of postsurgical adhesions. In addition, postsurgical adhesion formation is associated with a significant degree of long-term morbidity. In this article, a surgical technique is presented which allows patients with the most extensive form of pelvic adhesions to undergo reconstructive pelvic surgery with a near–adhesion-free postoperative outcome. This study was undertaken to assess the effectiveness of a comprehensive, well-defined set of surgical techniques, with well-defined additions and subtractions in surgical technique over a period of 23 years and three distinct phases of implementation. This work was a systematic comparison of three case-series evaluated sequentially over time. The three surgical protocols were each completely standardized. This was a systematic comparison of three distinct case series of patients who had extensive pelvic adhesions. Three distinct and standardized surgical protocols were prospectively introduced and adhesion scores before and after surgical treatment were assessed and statistically compared for each of the three case series. Ninety-five (95) patients with extensive pelvic adhesive disease due to endometriosis or pelvic inflammatory disease participated in this assessment. They were chosen because of the extensive nature of their pelvic and adnexal adhesions. There were 26 patients in phase I (1987–1993), 44 patients in phase II (1994–2005), and 25 patients in phase III (2006–2009). Using the American Fertility Society scoring system for adnexal adhesions, the total adhesion score decreased from 33.8 to 18.1 in phase I, from 33.3 to 6.0 in phase II, and from 33.2 to 2.5 in phase III. Each decrease was statistically significant within each phase (P < 0.001). Further, a statistically significant decrease in subsequent adhesion scores (P < 0.01) was observed at the time of second-look laparoscopy, when comparing phases I to II, II to III, and I to III, with the lowest scores obtained with the phase III surgical techniques. With the use of a comprehensive, well-defined set of surgical antiadhesion techniques, it is possible to perform adhesion-free or near adhesion-free reconstructive pelvic surgery. (J GYNECOL SURG 26:31)
NaProTECHNOLOGYClinical OutcomesLive Birth RatesGeneral Practice Setting
We evaluated outcomes in couples treated for infertility with natural procreative technology (NaProTechnology [corrected] NPT), a systematic medical approach for optimizing physiologic conditions for conception in vivo, from an Irish general practice. All couples receiving treatment from 2 NPT-trained family physicians between February 1998 and January 2002 were studied. The main outcome was live birth, and secondary outcomes included conceptions and multiple births. Crude proportions and adjusted life-table proportions were calculated per 100 couples. A total of 1239 couples had an initial consult for NPT, of which 1072 had been trying for at least a year to conceive and initiated treatment. The average female age was 35.8 years, the mean duration of attempting to conceive was 5.6 years, 24% had a prior birth, and 33% had previously attempted treatment with assisted reproductive technology (ART). All couples were taught to identify the fertile days of the menstrual cycle with the Creighton Model FertilityCare System, and most received additional medical treatment, including clomiphene (75%). In life-table analysis, the cumulative proportion of first live births for those completing up to 24 months of NPT treatment was 52.8 per 100 couples. The crude proportion was 25.5. Younger couples and couples without previous ART attempts had higher rates of live birth. Among live births, there were 4.6% twin births. NPT provided by trained general practitioners had live birth rates comparable to cohort studies of more invasive treatments, including ART. Further studies are warranted to compare NPT directly to other treatments.
Ethics/PhilosophyReproductive MedicineConscience RightsHealthcare Provider Training
This essay sets down three directives for conscientiously objecting clinicians-physicians, particularly obstetrician/gynecologists, trained in NaProTechnology by the Pope Paul VI Institute and Creighton University School of Medicine and any medical professionals who share their natural law vision of reproductive health care-to protect their right to well-formed conscientious objection in reproductive medicine. understand the nature of a well-formed conscience and its rightful exercise. fulfill all reasonable American College of Obstetricians and Gynecologists' requirements for conscientious refusal. execute a political strategy to protect health-care conscience rights.
NaProTECHNOLOGYTextbook ReviewReproductive Medicine
Mikolajczyk RT et al., 2006·Paediatr Perinat Epidemiol
Approaches to measuring fecundity include the assessment of time to pregnancy and day-specific probabilities of conception (daily fecundities) indexed to a day of ovulation. In this paper, we develop an additional approach of calculating expected pregnancies based on daily fecundities indexed to the last day of the menstrual cycle. Expected pregnancies can thus be calculated while controlling for frequency and timing of coitus. Comparing observed pregnancies with expected pregnancies allows for a standardised comparison of fecundity between studies or groups within studies, and can be used to assess the effects of categorical covariates on the woman or couple level, and also on the cycle level. This can be accomplished in a minimal data set that does not necessarily require hormonal measurement or the explicit identification of ovulation. We demonstrate this approach by examining the effects of age and parity on fecundity in a data set from women monitoring their fertility cycles with the Creighton Model FertilityCare System.
Fertility AwarenessScientific FoundationsBiophysical Properties and Mucus TypingHormonal and Ultrasound Correlation
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
The CREIGHTON MODEL FertilityCare System (CrMS) rests on a decades-long body of research demonstrating that cervical mucus functions as a physiologically regulated biological valve, opening predictably at the periovulatory estrogen rise and closing in the post-Peak phase. Chapter 15 of Hilgers (2004) synthesizes hormonal, ultrasound, cytologic, and biophysical evidence to establish that a woman's external observation of her Peak Day reliably identifies the fertile window, and documents the system's effectiveness data for both achieving and avoiding pregnancy across a five-study meta-analysis of nearly 1,900 couples.
PCOSEpidemiology and PrevalenceMetabolic ReframeDefective Ovulatory Events
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
PCOS (polycystic ovary syndrome), increasingly designated PMOS (polycystic metabolic ovary syndrome) to reflect its metabolic complexity, is far more prevalent than its classic presentation suggests, affecting roughly six percent of reproductive-age women and carrying systemic consequences well beyond fertility disruption. This chapter from the foundational NaProTECHNOLOGY textbook maps the hormonal architecture of the condition, its ovulatory defect patterns, its frequent co-occurrence with endometriosis, and the restorative surgical and cycle-tracking approaches developed at the Pope Paul VI Institute.
Andrology/Male FactorCriteria and ClassificationMedical TreatmentSurgical Correction
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Male infertility plays a clinically significant role in a large share of couples who struggle to conceive, yet standard laboratory criteria for semen analysis were designed primarily to predict success with assisted reproduction, not natural fertility. NaProTECHNOLOGY approaches male factor as a diagnosable condition with identifiable root causes, applying medical and surgical options aimed at restoring sperm function and combining that work with fertility-awareness charting to maximize the couple's chances of natural conception.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Preterm birth remains a leading cause of perinatal mortality, with rates in the United States rising significantly over the latter half of the twentieth century despite decades of awareness. NaProTechnology's integrated prevention approach, developed at the Pope Paul VI Institute, addresses this problem through systematic risk stratification, hormonal support, infection surveillance, and cervical monitoring across the full course of pregnancy.
NaProTECHNOLOGYIntroductory Session StructureBiological Valve MechanismChart Interpretation and Peak Day Identification
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
This 2004 textbook chapter by Thomas W. Hilgers outlines the structure and content of the formal introductory session used to enroll couples in the Creighton Model FertilityCare System (CrMS). It covers the biological foundation of fertility charting, the role of cervical mucus as a biomarker of the reproductive cycle, and the educational framework designed to train couples in systematic, real-time cycle observation.
Thomas W. Hilgers, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Medical protocols in NaProTECHNOLOGY are cycle-phase-targeted regimens — covering ovulation induction, luteal phase hormonal support, hyperprolactinemia management, thyroid optimization, and pre-conceptual supplementation — derived from the biomarker-defined diagnosis rather than empirical stimulation. Consolidating these protocols in a single reference enables practitioners to apply evidence-based, individualized treatment sequences that address root hormonal pathology while supporting natural conception.
Fertility AwarenessAchieving- and Avoiding-Related BehaviorUse TaxonomyPregnancy Classification
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Chapter 13 of Hilgers' NaProTECHNOLOGY textbook establishes a clinical behavioral taxonomy unique to the Creighton Model FertilityCare System, distinguishing between achieving-related and avoiding-related use based on whether a couple's actions increase or decrease the probability of conception. The chapter argues that a "taking a chance" mindset is inherently contraceptive in psychology and must be replaced with intentional, education-grounded behavior that reflects a couple's genuine family planning goals.
Women's HealthEndometrial Cancer Risk and DetectionBreast Cancer Hormonal AssociationsOvarian Cancer Early Detection
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Chapter 34 of Hilgers (2004) examines how NaProTechnology cycle charting may identify women at elevated risk endometrial, breast, and ovarian. The chapter presents clinical case series and a small prospective study suggesting that observable cycle biomarkers, particularly patterns indicating suboptimal luteal-phase function, may precede diagnosis and could inform earlier evaluation, while calling explicitly for further research to validate these findings.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
The sonographic ovulation classification is validated against targeted hormone profiles -- estradiol, LH, and serial post-Peak progesterone (P+3 through P+11) -- drawn at CrMS Peak-anchored time points rather than fixed calendar days. Hormone patterns corresponding to each sonographic category (e.g., absent LH surge in anovulation, progesterone rise without follicle rupture in LUF) confirm that ultrasound morphology reliably reflects the underlying endocrine disorder, establishing the biochemical legitimacy of the classification for clinical diagnosis.
NaProTECHNOLOGYFertilityCare Practitioner RoleMedical Consultant Referral LetterLong-Distance Consultation Model
Hilgers TW et al., 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
The FertilityCare Practitioner (FCP) is the trained educator and coach who teaches the Creighton Model FertilityCare System to clients, standardizes charting methodology, and serves as the primary data interface between the patient and the NaProTECHNOLOGY physician. Accurate, consistent chart data from FCPs directly determines the quality of biomarker interpretation, targeted intervention timing, and longitudinal outcome assessment throughout medical and surgical care.
NaProTECHNOLOGYParadigm ShiftProspective Cycle ChartingRoot-Cause vs Symptom Suppression
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
NaProTECHNOLOGY (Natural Procreative Technology) is defined as a women's health science that monitors and cooperates with the menstrual and fertility cycles to identify, evaluate, and treat gynecologic and reproductive disorders at their root cause. Unlike suppressive approaches such as hormonal contraception or ART, NaProTECHNOLOGY maintains procreative potential and treats underlying pathology while preserving the human ecology of reproduction.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Serial transvaginal ultrasound monitoring of follicular dynamics -- growth, rupture, corpus luteum formation, and free fluid -- forms the basis of a systematic classification of human ovulation disorders, including anovulation, luteinized unruptured follicle (LUF), follicular arrest, premature luteinization, and PCOS-type patterns. Anchoring sonographic findings to the CrMS Peak day allows precise correlation between ultrasound events and cervical mucus biomarkers, creating a reproducible diagnostic taxonomy that drives targeted medical and surgical treatment within the NaProTECHNOLOGY framework.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Preconceptional optimization using CrMS cycle data establishes hormonal baselines, identifies correctable pathologies, and guides targeted supplementation before conception is attempted. Systematic preconceptional evaluation reduces early pregnancy loss and improves obstetric outcomes by ensuring the endocrine environment supports implantation and early embryonic development.
NaProTECHNOLOGYCreighton Model FertilityCare SystemCervical eversion and ectropionChronic discharge charting and classification
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
The Creighton Model's standardized daily vulvar observation system -- recording discharge color, consistency, quantity, and sensation -- allows chronic pathological discharges (persistent yellow or cloudy mucus, continuous post-Peak discharge, premenstrual brown bleeding, or refractory vulvovaginitis) to be distinguished from normal cyclical mucus patterns and tracked longitudinally as a diagnostic tool. NaProTECHNOLOGY uses chronic discharge patterns as biomarkers that prompt organism-specific cultures, targeted hormonal evaluation, ultrasound, and etiology-directed treatment -- including antimicrobials, cooperative hormone replacement, or fertility-sparing surgery -- rather than empirical cycle suppression.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
A CrMS-synchronized hormone sampling protocol is detailed in which progesterone, estradiol, and other reproductive hormones are drawn at cycle-phase-specific time points defined by the charted Peak Day rather than by fixed cycle day, producing a targeted hormone profile that accurately reflects luteal and follicular function. This Peak Day-referenced approach substantially improves the diagnostic sensitivity for luteal phase deficiency, follicular dysfunction, and other endocrine abnormalities that fixed-day sampling routinely misclassifies.
Bone HealthReproductive EndocrinologyFertility AwarenessNaProTECHNOLOGY
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Chronic anovulation and progesterone or estradiol deficiency identified through CrMS charting represent periods of suboptimal bone accrual in women of reproductive age, because both estradiol and progesterone contribute to skeletal maintenance -- estradiol through suppression of osteoclast activity and progesterone through osteoblast stimulation. NaProTECHNOLOGY uses longitudinal CrMS records of ovulatory status and hormone profiles as a bone-health risk screen, guiding cycle-synchronized bioidentical hormone replacement to restore normal estrogen-progesterone balance and potentially mitigate progression toward osteoporosis in women with chronic cycle-based endocrine deficiencies.
NaProTECHNOLOGYFamily Practice ModelFertilityCare Practitioner and OB/GYN ConsultCreighton Model Charting and Timed Hormone Profiling
Hilgers TW et al., 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Family physicians trained in NaProTECHNOLOGY serve as primary coordinators of medical management — prescribing targeted hormone support, monitoring biomarker trends, and triaging surgical referrals — within a collaborative care model. Their longitudinal relationship with patients and ability to integrate reproductive medicine into whole-person primary care is a structural advantage of the NaProTECHNOLOGY delivery system over specialist-only models.
NaProTECHNOLOGYCPRT and CERTProgesterone and Estradiol SupportPeak Day Ovulation Timing
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Cooperative progesterone and estrogen replacement therapy administers bioidentical hormones in precise synchrony with the woman's CrMS-identified Peak day -- beginning progesterone at P+2 or P+3 and continuing through the luteal phase -- to augment deficient corpus luteum output rather than override the cycle with suppressive dosing. Serial serum progesterone across post-Peak days guides dose titration, and the approach is applied to luteal phase deficiency, recurrent miscarriage, premenstrual syndrome, and postpartum depression while preserving ovulatory function and fertility.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Selective hysterosalpingography combined with transcervical fallopian tube catheterization allows both precise diagnosis and non-surgical correction of proximal tubal occlusion, distinguishing true anatomical obstruction from tubal spasm or mucous plugging. In NaProTECHNOLOGY practice, this minimally invasive approach restores tubal patency without laparotomy, preserving natural conception potential in appropriately selected patients.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Physiological and psychological stress disrupts hypothalamic GnRH pulsatility via CRH-cortisol pathways, producing downstream impairments in LH and FSH secretion that manifest as anovulation, delayed ovulation, follicular phase prolongation, or luteal phase deficiency -- all of which are documented cycle-by-cycle on the CrMS chart. NaProTECHNOLOGY addresses stress-induced HPO axis dysfunction by identifying the specific cycle-level disorder through charting and targeted hormone profiling, then applying cycle-appropriate ovulation induction and cooperative hormone support alongside correction of the underlying physical or psychological stressor.
Fertility AwarenessDecision-Making FrameworkAchieving vs Avoiding PregnancyResponsible Parenthood and Catholic Teaching
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Clinical and instructional decision trees guide practitioners through the interpretation of chart findings and the selection of appropriate responses — ranging from continued observation to medical referral — based on pattern recognition and established CrMS criteria. Systematic decision-making protocols reduce practitioner variability, support evidence-based care, and define the threshold at which observed abnormalities warrant further NaProTECHNOLOGY medical evaluation.
NaProTECHNOLOGYInfertilityOvarian and Target Organ DysfunctionCervical Mucus
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Ovarian dysfunction — encompassing luteal insufficiency, abnormal folliculogenesis, and anovulation — is treated in NaProTECHNOLOGY with cycle-timed interventions including HCG trigger, progesterone supplementation, clomiphene, and thyroid optimization, guided by prospective CrMS charting rather than protocol-driven stimulation. This approach normalizes endogenous hormonal patterns rather than overriding them, preserving uterine receptivity and reducing multiple gestation risk.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Pelvic adhesions from prior infection, surgery, or endometriosis restrict tubal motility, occlude the fimbriae, and distort ovarian-tubal relationships, constituting a primary mechanical barrier to natural conception. Microsurgical adhesiolysis performed under NaProTECHNOLOGY protocols achieves tubal patency and restores anatomical relationships, enabling natural pregnancy in a substantial proportion of cases that would otherwise be directed to IVF.
InfertilityMultifactorial DiagnosisCycle Classification and Hormonal CorrelationLuteinized Unruptured Follicle and Serial Ultrasound
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
NaProTECHNOLOGY applies the standardized biomarkers of the Creighton Model FertilityCare System to identify the specific pathophysiological causes of infertility in each couple, then directs targeted medical or surgical intervention against those causes. Published pregnancy rates demonstrate outcomes comparable to or exceeding IVF in many diagnostic categories, without the ethical, financial, or obstetric risks associated with assisted reproduction.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
The PEARS (Pelvic Endoscopic Adhesion-Related Surgery) procedure for peritoneal and ovarian endometriosis combines near-contact laser vaporization, adhesiolysis, and ovarian cystectomy under strict anti-adhesion protocols to achieve comprehensive disease eradication while preserving ovarian reserve. Outcomes data demonstrate superior fertility and pain resolution compared to incomplete surgical approaches, establishing PEARS as the operative standard within NaProTECHNOLOGY.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Uterine fibroids contribute to abnormal uterine bleeding, dysmenorrhea, recurrent pregnancy loss, and implantation failure, making myomectomy a central NaProTECHNOLOGY surgical intervention for women seeking conception. PEARS myomectomy technique prioritizes uterine preservation, meticulous layered closure of the myometrial defect, and hemostasis strategies that minimize adhesion formation and support subsequent pregnancy.
Hilgers TW, 2004·The Medical and Surgical Practice of NaProTECHNOLOGY
Serial progesterone measurement timed to the luteal phase and early pregnancy using CrMS Peak Day-referenced protocols reveals luteal insufficiency and early placental progesterone inadequacy that are associated with miscarriage risk and preterm labor. Progesterone supplementation guided by these standardized assessments has been associated with reduced pregnancy loss in NaProTECHNOLOGY-managed pregnancies, and the chapter details the specific drawing protocols, reference ranges, and supplementation decision thresholds used in clinical practice.
Ethics/PhilosophyFree Exercise in Reproductive MedicineDiagnostic Versus Bypass ApproachPhysicians and Medical Students
Over the years of my involvement in obstetrics and gynecology, and reproductive medicine and surgery I have had the opportunity to see, first hand, how the religious liberties of individual physicians, medical students, nurses, patients, etc., have been violated by the contemporary trends in reproductive medicine. Since the advent of oral contraceptives, the practice of obstetrics and gynecology as it relates to procreative medicine has dramatically changed. Contraception, sterilization, abortion and in vitro fertilization are the foundation upon which reproductive medicine decision making is made. These decisions are often made with a "steam roller effect" which is completely devoid of any consent from those who are impacted by the implementation of those decisions. It has been an interesting series of events to watch over these years as the profession has become less and less diagnostically attuned and more and more "band aid" oriented. The birth control pill is used for the treatment of almost every gynecologic malady known, even though it cures none of them. Family physicians, internists, pediatricians and others tend to follow the same approach as their OB-GYN colleagues. With in vitro fertilization, instead of finding out what the underlying cause of one's infertility or reproductive problem might be, there is a "jumping over" of the underlying causes (the diseases) and a pursuit directly to a solution which first of all is very expensive, second, is not very effective and third, is considered to be highly immoral and unethical by many people in our society.
NaProTECHNOLOGYCervical Mucus ObservationsCreighton ModelDay-Specific Conception Probability
To assess the day-specific and cycle-specific probabilities of conception leading to clinical pregnancy, in relation to the timing of intercourse and vulvar mucus observations. This was a retrospective cohort study of women beginning use of the Creighton Model Fertility Care System in Missouri, Nebraska, Kansas, and California. Data were abstracted from Creighton Model Fertility Care System records, including women's daily standardized vulvar observations of cervical mucus discharge, days of intercourse, and clinically evident pregnancy (conception). Established statistical models were used to estimate day-specific probabilities of conception. Data were analyzed from 1681 cycles with 81 conceptions from 309 normally fertile couples (initially seeking to avoid pregnancy) and from 373 cycles with 30 conceptions from 117 subfertile couples (who were initially trying to achieve pregnancy). The highest probability of pregnancy occurred on the peak day of vulvar mucus observation (.38 for normally fertile couples and.14 for subfertile couples). The probability of pregnancy was greater than.05 for normally fertile couples from 3 days before to 2 days after the peak, and for subfertile couples from 1 day before to 1 day after the peak. The cycle-specific probability of conception correlated with the quality of mucus discharge in normally fertile couples but not in subfertile couples. Standardized vulvar observations of vaginal mucus discharge identify the days with the greatest likelihood of conception from intercourse in normal fertility and subfertility and provide an indicator of the overall potential for conception in a given menstrual cycle in normal fertility.
Barron ML et al., 2001·J Obstet Gynecol Neonatal Nurs
The Creighton Model system of natural family planning (NFP) is useful in achieving pregnancy, avoiding pregnancy, and detecting some gynecologic disorders. NFP practitioners support the client in using NFP. Because the effectiveness of NFP is related to the teaching process and to teacher expertise, clients choosing NFP may be best served by referral to a certified NFP practitioner for instruction.
Effective use of natural family planning is strongly dependent upon adequate instruction. The Creighton Model Fertility Care System (CrMS) has a standardized protocol for instruction of new users that includes individual follow-up visits in the first year of use. This study evaluated the number of follow-up visits completed by new CrMS users from eight CrMS centers in the United States. Four follow-up visits were completed by 75.7% of women. Women who continued instruction were more likely to be educated, Catholic, and white, and to have a more challenging reproductive status (discontinuing oral contraceptives, or breastfeeding). These results suggest that the number of follow-up visits needed varies among new CrMS users. Future research should address the optimal length of instruction for adequate use of the CrMS by women with different characteristics and needs.
To evaluate pregnancy probabilities during use of the Creighton Model Fertility Care System (CrMS). Couples who began use of the CrMS were entered into this observational cohort study. Follow-up included detailed reviews of use of the CrMS. Pregnancy probabilities were calculated with both net and gross life-table analysis through 18 months. A natural family planning service delivery program based at an urban hospital in Houston, Tex. A group of 701 couples who received instruction in the CrMS were entered into the study. Most couples (93%) were engaged or married. Most women were white (83%), between the ages of 20 and 34 years (88%), and college graduates (58%). Pregnancies were classified based on a detailed evaluation involving the pregnant woman (usually with her partner). At 12 months, the following net pregnancy probabilities were found per 100 method-related pregnancies, 0.14; pregnancies caused by user and/or teacher error, 2.72; pregnancies caused by achieving-related behavior (genital contact during a time known to be fertile), 12.84; unresolved pregnancies, 1.43; and total pregnancies, 17.12. Pregnancy probabilities were similar when stratified by the following uncomplicated regular cycles, long cycles, discontinuing oral contraceptives, breastfeeding, and other. Pregnancy probabilities of the CrMS compare favorably with those of other methods of family planning. Most pregnancies result from genital contact during a known fertile time. Women need not have regular cycles to use the CrMS successfully.
To assess the intratubal pressure (ITP) and patency status of the fallopian tubes before and after transcervical catheterization of the fallopian tubes (TCFT). Prospective procedural assessment. Pope Paul VI Institute for the Study of Human Reproduction. PATIENT(S): Two hundred thirty-four women with either primary or secondary infertility. INTERVENTION(S): Patients underwent selective hysterosalpingography and, in some cases, TCFT with measurement of the ITP before and after the procedure. MAIN OUTCOME MEASURE(S): The ITP before and after TCFT. RESULT(S): The mean (+/-SD) ITP in freely patent tubes was 0.53 +/- 0.06 atm, that in partially obstructed tubes was 1.23 +/- 0.52 atm, and that in completely obstructed tubes was 2.79 +/- 1.40 atm. After TCFT, the mean (+/-SD) ITP in partially obstructed tubes decreased to 0.64 +/- 0.31 atm and that in completely obstructed tubes decreased to 1.86 +/- 1.35 atm. The ITP was normalized in 76% of partially obstructed tubes and in 29.5% of completely obstructed tubes. In all cases of complete obstruction in which surgical correction was attempted, organic pathology was identified. CONCLUSION(S): The procedure described is a safe and easy means of obtaining reliable and significant information on the status of the proximal fallopian tube.
To evaluate the use effectiveness of Creighton Model (CrM) NaProEducation Technology for avoiding pregnancy. CrM is a medical model of natural procreation education that is a fully standardized modification of the Billings ovulation method. This system has been used as a means to avoid pregnancy and has been prospectively evaluated in five use effectiveness studies. A prospective life-table analysis of the five studies (meta-analysis) was undertaken, yielding both net and gross rates. Discontinuation rates were also calculated. These studies were conducted at CrM centers in Omaha, St. Louis, Wichita, Houston, and Milwaukee. A total of 1,876 couples used CrM NET for a total of 17,130.0 couple months of use. The method and use effectiveness rates for avoiding pregnancy were 99.5 and 96.8 at the 12th ordinal month and 99.5 and 96.4 at the 18th ordinal month, respectively. The discontinuation rate was 11.3% at the 12th ordinal month and 12.1% at the 18th ordinal month. CrM is highly effective as a means of avoiding pregnancy in both its method and use effectiveness. The method effectiveness has remained stable over the years of the studies, but the use effectiveness for avoiding pregnancy appears to have improved over the study period.
The optimal timing of sexual intercourse in relation to the day of ovulation in order for pregnancy to result is a topic of broad interest. Of obvious relevance to fecundability, on the one hand, a...
NaProTECHNOLOGYDevelopment and HistoryBillings Ovulation MethodNatural Family Planning
The following is an address presented to a summit meeting on natural family planning sponsored by the Pontifical Councilfor the Family in December, 1992
I am honored and privileged to have this opportunity to be with all of you at this summit meeting on natural family planning. I wish to thank Alfonso Cardinal Lopez Trujillo for his invitation and all ofthe members ofthe Pontifical Council for their generosity and hospitality.
I have been asked to discuss with you what has become known as the Creighton Model Natural Family Planning System. This system obtained its name from my personal association, in its early days of development, with Creighton University School of Medicine in Omaha, Nebraska. This discussion will be, by its very nature, a summary of work that has been done and work that is currently ongoing.
The Creighton Model is referred to as a "model" as opposed to a "method" because it is an integrated education, research and service oriented system which meets the demands of the allied health and medical professions in the field of natural family planning. This system was specifically built to accomplish accountability and competency through a strong professional infra-structure. At the same time, it has been built within the context of a Catholic ethical and moral service delivery framework. It uses a standardized modification of the Billings' Ovulation Method in accomplishing these goals.
I personally became involved in natural family planning with a research project I did as a senior medical student in 1968. As I investigated the salivary albumin concentrations in women during the course of their menstrual cycles, I was looking for a reported decrease in albumin around the time of ovulation. Unfortunately, a project which I had no doubt would solve the problems related to natural family planning (sic), proved to be not a very good idea. . .
Fehring RJ et al., 1994·J Obstet Gynecol Neonatal Nurs
To determine the use effectiveness of the Creighton model ovulation method in avoiding and achieving pregnancy. Prospective, descriptive. A natural family planning clinic at a university nursing center. Records and charts from 242 couples who were taught the Creighton model. The sample represented 1,793 months of use of the model. Creighton model demographic forms and logbook. At 12 months of use, the Creighton model was 98.8% method effective and 98.0% use effective in avoiding pregnancy. It was 24.4% use effective in achieving pregnancy. The continuation rate for the sample at 12 months of use was 78.0%. The Creighton model is an effective method of family planning when used to avoid or achieve pregnancy. However, its effectiveness depends on its being taught by qualified teachers. The effectiveness rate of the Creighton model is based on the assumption that if couples knowingly use the female partner's days of fertility for genital intercourse, they are using the method to achieve pregnancy.
NaProTECHNOLOGYOvulation MonitoringUltrasoundClassification Systems
Fifty consecutive clients achieved pregnancy using a standardization modification of the Billings ovulation method (the Creighton Model Natural Family Planning System). Of 50 clients followed, 38 (76%) achieved pregnancy in the first cycle of fertility-focused intercourse, 45 of 50 (90%) achieved pregnancy by the third cycle and 49 of 50 achieved pregnancy by the sixth cycle (98%).
A simple technique of placing two Kocher clamps on the anterior rectus fascia for the elevation of the anterior abdominal wall during the insertion of the veress needle and the laparoscopic trocar is described in 243 consecutive patients. There were no failed insufflations during this study and no cases of preperitoneal emphysema. The technique is simple to use and adds safety to a basically blind procedure.
The empty follicle syndrome was assessed using transvaginal ultrasonography in a group of 152 consecutive women with unmedicated menstrual cycles being studied because of primary or secondary infertility or repetitive miscarriage. The overall frequency of the empty follicle syndrome was found to be 43.4%. The frequency increased with age but was independent of gravidity. The empty follicle syndrome may be a significant etiologic factor in infertility or other reproductive abnormalities, and transvaginal ultrasound represents a good, non-invasive means of evaluating it.
Some randomized studies have suggested a significant beneficial effect of 17-hydroxyprogesterone caproate in the prevention of preterm labor [1, 2], The therapy in both studies was initiated at approximately 12-16 weeks and continued until labor.
We considered the possibility that a deficient proges terone effect during the first trimester may lead to a higher rate of preterm deliveries. A retrospective study was thus performed comparing the incidence of preterm versus full-term pregnancies in women with luteal phase defects who were either treated or not treated with proges terone supplementation during the first trimester.
We report an interesting case of above-normal serum estradiol concentration of unknown origin. A 30-year-old white woman was seen for infertility problems. Hormonal evaluation revealed the following results. Postovulatory progesterone concentrations and profile (a plot of hormone concentration vs time of cycle) were within the normal range for our laboratory (Table 1). However, the post-ovulatory estradiol concentrations were extremely high, although the curve appeared normal in profile (Table 1).
James Parkinson, a general physician, was interested in all facets of medical care, and wrote two books for the lay public that contained comments on diverse things. He may have been one of the first physicians to publicly describe child abuse. Some of his advice to the public was of a neurologic nature, and included directions on the diagnosis and treatment of pseudoseizures, epilepsy, drowning, and stroke.
NaProTECHNOLOGYMedical DiagnosticsCreighton Model SystemClinical Utility
The sonographic definition of the empty follicle syndrome is presented in a group of 89 consecutive, unmedicated menstrual cycles in women with primary or secondary infertility. The incidence of the empty follicle syndrome was found to be 50%. The incidence increased with age and was independent of gravidity or the type of follicular rupture (or lack of rupture). These data suggest that the empty follicle syndrome may represent a significant etiologic factor in infertility or other reproductive abnormalities.
The records of 139 consecutive patients who underwent major gynecologic abdominal surgery in which 32% dextran 70 was used as an antiadhesion adjuvant were carefully reviewed for the presence or absence of dextran-related complications. Eleven patients (8.0%) were thought to have dextran-related complications, including postoperative ileus (2.9%), pleural effusion (2.2%), allergic reactions (1.4%), wound infection (1.4%) and labial swelling (0.7%). The mean amount of dextran used was 183 mL. The study indicated that dextran can be used in moderate amounts when instilled intraperitoneally and has an acceptably low rate of complications. Since dextran is used often in spite of scanty evidence of its effectiveness as an antiadhesion adjuvant, understanding its safety and potential complications is especially important.
Fertility AwarenessNatural Family PlanningHilgers NFP MethodsHuman Ecology
Cervical mucus observation may be difficult for women who experience continuous mucus throughout their menstrual cycles. This study aims to prove the value of cervical mucus methods for these women. Rather than examining a woman's onset of cervical mucus, this study evaluates the "Point of Change" in the mucus and its correlation to the woman's hormone levels.
There is no information available about the effect of iron in formula on the development of gastrointestinal humoral immune response in early human infancy. We compared standard Enfamil to iron-fortified formula during the first 8 weeks of human life on the development of local gastrointestinal humoral immune response by measuring fecal secretory immunoglobulin A (SIgA). Thirty children were studied and classified according plain Enfamil (n = 15) and Enfamil with iron (n = 15). Fecal specimens were analyzed at birth, 2 weeks, 4 weeks, and 8 weeks of age. Fecal SIgA was assayed by RID (radial-immune diffusion) during these four infantile periods in the two groups. Marked SIgA changes were detected in the group with iron-fortified formula versus non-iron-fortified formula. These changes appeared to have statistical significance in all the three infantile periods (2 weeks, 4 weeks, and 8 weeks). There were no observed clinical side effects with the use of iron-fortified formula as detected by appropriate questionnaire. The possible role of iron in earlier and enhanced development of immunologic competence and host defense is discussed. These data may suggest a beneficial effect of low-dose iron in formula during early infantile human life by the protective role of the earlier and enhanced production of SIgA in the gut.
NaProTECHNOLOGYPublication AnalysisPharmaceutical Advertising BiasNFP Literature
The possibility that beta-endorphin, an endogenous opiate, is involved in the regulation of the menstrual cycle was examined. Daily serum beta-endorphin levels, in conjunction with luteinizing hormone, progesterone, and 17 beta-estradiol were measured during 26 hormonally normal menstrual cycles. Twenty-one cycles showed a preovulatory peak and postovulatory trough of beta-endorphin, 2 cycles had a postovulatory peak, and 3 had a postovulatory peak with sustained elevation. The raw data were standardized by conversion to "Z-scores," and the composite values were computed for each of the three classes described above. Significance within these three classes was assessed using a one-way analysis of variance with an F-ratio at 95% confidence limits. The composite plot of the 26 cycles showed a statistically significant preovulatory peak occurring 2 days prior to the luteinizing hormone surge and a postovulatory trough of beta-endorphin 5 days later. These results suggest that beta-endorphins play a significant role in the neurochemical mechanisms of gonadotropin release.
Fertility AwarenessPostovulatory Infertility IdentificationPeak Mucus Symptom ResearchCervical Mucus and Ovulation
The estimated time of ovulation (ETO) was correlated with the day of defined postovulatory infertility in 66 hormonally normal menstrual cycles from 24 subjects for each of 15 different natural family planning methodologies. Inherent weaknesses were identified in methods based upon calendar calculations or basal body temperature only. These weaknesses could be removed for the basal body temperature-only methods if symptoms, especially the peak mucus symptom, were added to the temperature records. However, the peak mucus symptom alone had the greatest precision of all methods studied. No advantage could be identified in combining the basal body temperature with the peak symptom.
Several periovulatory symptoms sometimes used in natural family planning are correlated with the estimated time of ovulation in 23 subjects and 64 hormonally normal menstrual cycles. The data suggest that intermenstrual pain may not be due to 1 specific cause but rather to several related factors. As a symptom of ovulation, intermenstrual pain was more specific than lower backache, abdominal bloating, and intermenstrual bleeding nonetheless, intermenstrual pain has a broad periovulatory association. The most reproducible and predictable sign of this series appeared to be the postovulatory occurrence of breast tenderness.
Body LiteracyHospital-Based NFP ProgramsProgram DevelopmentHealthcare Settings
Now that principles of NFP have been established specific programs are necessary to disperse information and to teach techniques. The hospital-based NFP program offers the community a needed service and benefits the hospital.
Fertility AwarenessOvulation DetectionTemperature-Based Ovulation EstimationHormonal Correlation with BBT
Four points on the basal body temperatures (BBT) curve have been correlated with the estimated time of ovulation (ETO), as determined by indirect hormonal parameters, in 74 menstrual cycles from 24 subjects. Only 10 of 66 hormonally
NaProTECHNOLOGYPeak Mucus Symptom DefinitionUse-Effectiveness MethodologyQuality Control in NFP Trials
I read with interest the recent article by Wade and associates, "A randomized prospective study of the use-effectiveness of 2 methods an interim report" (134: 628, 1979). In reference to the study of the ovulation method, the authors noted that abstinence begins on the 1st day of mucus secretion and continues until the evening of the 4th day beyond the peak or maximal mucus secretion. In the ovulation method, the peak symptom is not the same as maximal mucus secretion as was indicated in the paper. The peak symptom is defined as the last day of the mucus discharge that is clear and/or stretchy and/or lubricative. In the definition of peak symptom, the amount of mucus discharge is not specifically important and may often be misleading. I had the opportunity to do a site visit at this study at the request of the National Institutes of Health while the study was in progress. I analyzed several pregnancies which occurred in users of this ovulation method. Some of the pregnancies occurred as the result of poor teaching of the concept of peak symptom. In the ovulation method, proper understanding and teaching of that concept are essential to the measurement of its effectiveness. Noticeably missing from this interim report was any discussion of the quality control procedures which were utilized to guarantee a high-quality educational service to the people entered into the study. While the authors claim that the methods were taught by professional teachers, these teachers were actually women who had previously used the method and/or had formalized training in teaching the method. Simple use of either of the methods certainly does not qualify an individual to teach natural family planning. For those with formalized teaching, such training should have been outlined since judgment on the effectiveness of the teaching cannot be made; such a judgment is essential to the proper analysis of results. Finally, while the study claims to be a use-effectiveness study, it is rather a modified version of extended use-effectiveness. No objective definition of "user failure" is provided. One cannot ascertain how many pregnancies were related to poor teaching, nor can one tell how many occurred as the result of the couples' last minute exercise of their freedom to use their fertility. The use-effectiveness of the 2 methods under study as a means to achieve a pregnancy have been ignored. In doing so, the investigators have ignored use-effectiveness reality.
St. Louis University Natural Family Planning Center. St. Louis. Missouri and Creighton University Natural Family Planning Education and Research Center, Omaha. Nebraska
The observation of the "Peak" mucus symptom in women using the ovulation method of natural family planning has been correlated with the estimated time of ovulation, as evaluated by indirect hormonal parameters. In 65 cycles of the 73 studied in 24 patients, there was hormonal confirmation of ovulation; in eight cycles, anovulation or luteal dysfunction was suspected. In the 65 normal cycles, 64 exhibited a Peak symptom. In those cycles, ovulation was estimated to occur from 3 days before to 3 days after the Peak symptom with a mean of 0.31 days before the Peak symptom. In 95.4% of these cycles, ovulation was estimated to occur from 2 days before to 2 days after the Peak symptom. The variation between cycles of the same patient ranged from 0 to 4 days with a mean of 1.8 days. The beginning of the mucus symptom preceded the estimated time of ovulation by an average of 5.9 days.