Ten years' experience of artificial insemination with cryopreserved donor semen for 1023 courses in 783 women resulting in 572 pregnancies is reported. A simple approach with multiple inseminations timed on the basis of cycle length, temperature charts, mucus symptoms and signs was used. The life table pregnancy rate was 61% after 12 cycles of treatment and 75% after 24 cycles. Women had a significantly higher rate of pregnancy in second and subsequent courses of treatment, and the pregnancy rate for treatment beyond 12 cycles was significantly less successful. Women over 35 years of age were significantly less successful.
PMID 3382608 3382608 DOI 10.1111/j.1471-0528.1988.tb06605.x 10.1111/j.1471-0528.1988.tb06605.x
Cite this article
Kovacs, G., Baker, G., Burger, H., De Kretser, D., Lording, D., & Lee, J. (1988). Artificial insemination with cryopreserved donor semen: a decade of experience. British journal of obstetrics and gynaecology, 95(4), 354-360. https://doi.org/10.1111/j.1471-0528.1988.tb06605.x
Kovacs G, Baker G, Burger H, De Kretser D, Lording D, Lee J. Artificial insemination with cryopreserved donor semen: a decade of experience. Br J Obstet Gynaecol. 1988;95(4):354-360. doi:10.1111/j.1471-0528.1988.tb06605.x
Kovacs, G., et al. "Artificial insemination with cryopreserved donor semen: a decade of experience." British journal of obstetrics and gynaecology, vol. 95, no. 4, 1988, pp. 354-360.
Factors influencing the probability of conception after artificial insemination with donor semen were investigated in a series of 80 infertile couples. Overall, 46 pregnancies were achieved for a crude pregnancy rate of 58%. Life table analysis showed a cumulative probability of conception of 97.1% at the end of 12 cycles and an average fecundability of 15.1%. These results were achieved using a single insemination per cycle and individualizing the day of insemination based on the woman's basal body temperature. Women who had been pregnant previously had a significantly better fecundability than nulligravid women (P less than .05). The overall rates of conception in those women who required therapy for ovulatory dysfunction were the same as normal women although the fecundability was somewhat lower. Women who had abdominal pathology had an overall conception rate of 23%.
To test the association between cytokine levels in the amniotic fluid and (i) the vascular invasion phase of intrauterine infection, (ii) the occurrence of periventricular leukomalacia; to assess the correlation between C-reactive protein levels, a recognised biological marker of inflammation in maternal serum and cytokine levels in the amniotic fluid. Prospective clinical study. Fetal medicine unit and neonatal intensive care unit, Antoine Beclere Hospital, Clamart, France. Thirty-one pregnancies complicated by chorioamnionitis leading to birth before 32 weeks of gestation. Interleukin 1-beta, Interleukin 6 and TNF-alpha prospectively measured in the amniotic fluid. Histological examination of the placenta. Ultrasound examination and magnetic resonance imaging of the brains of the newborn infants performed within the first week of life. The occurrence of periventricular leukomalacia was assessed by transfontanellar ultrasound and magnetic resonance imaging. There was a significant positive correlation between the occurrence of histological chorioamnionitis, vascular extension of infection of the membranes, maternal inflammatory syndrome and neonatal sepsis. A strong association was found between maternal serum C-reactive protein concentrations and cytokine levels in the amniotic fluid. Interleukin-1beta was the best predictor of vascular extension of chorioamnionitis, and TNF-alpha was the best predictor of the development of severe early neonatal infection. There was no association between the amniotic fluid levels of cytokines and the development of periventricular leukomalacia. These data suggest that IL-1beta, IL-6 and TNF-alpha are produced in relation to intrauterine inflammation and infection, but cannot be directly implicated in the development of fetal cerebral white matter lesions.
To examine the risk of multiple sclerosis in users of combined oral contraceptives.
Cohort study conducted between 1968 and 1996 using diagnostic data supplied by General practices throughout the United Kingdom. Royal College of General Practitioners' Oral Contraception Study cohort of initially 46,000 women recruited during the late 1960s. Directly standardised incidence rates of multiple sclerosis were calculated for current, former and never-users of oral contraceptives using first ever cases of multiple sclerosis reported by the general practitioners. The standardisation variables were age, parity, social class and smoking history. Five-year survival rates in the different contraceptive groups were calculated using standard life table techniques. One hundred and fourteen first ever cases of multiple sclerosis had been reported by November 1996 during 564,000 woman-years of observation. The incidence rate in both current and former users was not materially different to that in never-users. Although based on limited evidence there was no suggestion that the five-year survival was affected by a woman's use of combined oral contraceptives. These findings do not suggest a greatly elevated risk of multiple sclerosis during, or after, use of combined oral contraceptives.