Endometriosis Fertility and Outcomes

Endometriosis and infertility

Bulletti C, Coccia ME, Battistoni S, Borini A

Published August 2010 Journal of Assisted Reproduction and Genetics, 27(8), 441-447
DOI 10.1007/s10815-010-9436-1 PMID 20574791 PMC PMC2941592

RRM Academy Synopsis

Endometriosis review finds no proof combined therapy aids fertility

A 2010 review by four Italian authors finds no evidence that medical and surgical therapy together significantly improve fertility in endometriosis. The review describes how common the disease is and what may cause infertility. Endometriosis is found in about 25 to 50% of infertile women.

Key Findings

  • Endometriosis affects 6 to 10% of women in the general population and 35–50% of women with pain, infertility, or both. Among infertile women, about 25 to 50% have it.
  • Monthly fecundity, the chance of conceiving each month, is in the range of 0.15 to 0.20 in normal couples. Women with endometriosis tend to have about 0.02–0.1.
  • Two randomized controlled studies found better fertility after surgical removal of implants in minimal-mild disease. No randomized trials or meta-analyses are available on whether surgical excision raises pregnancy rates in moderate–severe disease.
  • All established medical therapies gave better pain outcomes than placebo. For confirmed endometriosis, the review states that no evidence shows medical therapy improving fecundity.
  • The authors report a pregnancy rate of 56.1% for surgery followed by IVF when no spontaneous pregnancy occurred after surgery, against 37.4% after surgery alone.

Interpretation

Four Italian authors wrote this review of published studies. One cited study reports a 56.1% pregnancy rate for surgery followed by IVF-ET. Surgery alone reached 37.4% in that same study. The authors say surgeons should remove all visible implants during laparoscopy. They call ablation effective for pain and fertility in mild disease. The findings support larger studies on surgery for infertility linked to endometriosis.

RRM Context

Restorative reproductive medicine treats the cause of infertility and works to restore pelvic anatomy and function. IVF goes around pelvic disease and leaves it in place, so a woman's endometriosis remains after IVF. Better fertility after surgical removal of implants in two randomized studies fits a cause-based approach. So does the lack of evidence for a fertility gain from medical therapy.

Abstract

Endometriosis is a debilitating condition characterized by high recurrence rates. The etiology and pathogenesis remain unclear. Typically, endometriosis causes pain and infertility, although 20-25% of patients are asymptomatic. The principal aims of therapy include relief of symptoms, resolution of existing endometriotic implants, and prevention of new foci of ectopic endometrial tissue. Current therapeutic approaches are far from being curative; they focus on managing the clinical symptoms of the disease rather than fighting the disease. Specific combinations of medical, surgical, and psychological treatments can ameliorate the quality of life of women with endometriosis. The benefits of these treatments have not been entirely demonstrated, particularly in terms of expectations that women hold for their own lives. Although theoretically advantageous, there is no evidence that a combination medical-surgical treatment significantly enhances fertility, and it may unnecessarily delay further fertility therapy. Randomized controlled trials are required to demonstrate the efficacy of different treatments.

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Related research

Endometriosis › Fertility and Outcomes › Conception After Excision · General Gynecology › Pelvic Pain › Chronic Pelvic Pain · Therapeutics › Hormonal Agents › Progesterone and Progestins
Carlo Bulletti, Maria Elisabetta Coccia, Silvia Battistoni, Andrea Borini
C Bulletti, M Coccia, S Battistoni, A Borini
PMID 20574791 20574791 DOI 10.1007/s10815-010-9436-1 10.1007/s10815-010-9436-1 Bulletti et al. 2010, Bulletti 2010