Endometriosis · Surgical Treatment

Peritoneal defects and the development of endometriosis in relation to the timing of endoscopic surgery during the menstrual cycle

Schweppe KW, Ring D

Published October 10, 2002 Fertility and Sterility, 78(4), 763-766
DOI 10.1016/s0015-0282(02)03431-3 PMID 12372453
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RRM Academy Synopsis

Stage I-II endometriosis recurred twice as often after luteal surgery

Minimal-to-mild endometriosis came back about twice as often after luteal-phase surgery, a chart review at one hospital found. Of 220 women, about 15 out of 100 operated on days 22 to 28 had biopsy-proven recurrence within 2 years. About 8 out of 100 had it after follicular-phase surgery. About 7 out of 100 had it after periovulatory-phase surgery.

Key Findings

  • The total recurrence rate after 2 years was 9.6% among the 220 women.
  • Biopsy-confirmed recurrence at 24 months: 10 of 67 women (14.9%) in the luteal phase, 5 of 62 (8.1%) in the follicular phase, and 6 of 91 (6.6%) in the periovulatory phase.
  • The luteal group had a significantly higher recurrence rate as early as 6 months and throughout the 2 years. The follicular and periovulatory groups did not differ.
  • Macroscopy and microscopy agreed in 89% of laparoscopic findings overall: 91% in the luteal phase, 89% in the follicular phase and 87% in the periovulatory phase.
  • With three exceptions, all visual recurrences occurred as peritoneal disease, in the original sites and in additional peritoneal sites.

Interpretation

The study is a retrospective chart review from one hospital. Surgery timing followed operating capacity and patient wishes, so cycle phase was not assigned. The authors hypothesize that unhealed surgical wounds at menstruation can facilitate attachment of shed endometrial tissue. They describe peritoneal trauma as an additive factor that facilitates implantation. The paper does not measure wound healing directly. Only women with stage I or II disease and no medical treatment were included, and 38 of 258 eligible women were lost to follow-up. The result is an association within one clinic's records.

RRM Context

The authors advise scheduling endoscopic surgery for peritoneal endometriosis in the first half of the cycle. Restorative reproductive medicine treats the cycle as clinical information. In this one-clinic review of stage I and II disease, cycle phase at surgery was associated with return of disease. The study placed each woman in a phase using her last period date, hormone blood tests before surgery and her next period. The authors call the overall 9.6% rate in accordance with the literature.

Abstract

Objective

In vitro studies demonstrated that implantation on membranes (peritoneum, amniotic membranes) can take place if there are defects on the surface of the membranes. If these mechanisms play a role for the development of endometriosis in vivo, then patients with surgical treatment of peritoneal endometriosis in the luteal phase must have a high recurrence rate.

Design

Retrospective analysis of operation charts and follow-up data.

Setting

Department of gynecology, in a hospital-based endometriosis treatment center.

Patients

Two hundred twenty premenopausal women.

Interventions

Laparoscopic treatment for peritoneal endometriosis, stage I and II by revised American Society for Reproductive Medicine guidelines.

Main Outcome Measures

During the follow-up period of 2 years, symptoms and gynecological and sonographic findings were documented. In case of suspected recurrence a repeat laparoscopy with biopsy was performed to prove the recurrent endometriosis macroscopically and histologically.

Results

The total recurrence rate after 2 years was 9.6%. The recurrence rate of group III (15%) was twice as high as those of group I (7%) and group II (8%), as indicated by subjective complaints, clinical findings, macroscopy, and histology; no differences were found between groups I and II.

Conclusions

Endoscopic surgery for the treatment of peritoneal endometriosis should not be performed in the luteal phase.

Topics

By this author

Related research

Endometriosis › Surgical Treatment › Recurrence After Surgery · Reproductive Surgery › Laparoscopy › Technique · General Gynecology › Clinical Practice › Practice Patterns
Dieter Ring
D Ring
PMID 12372453 12372453 DOI 10.1016/s0015-0282(02)03431-3 10.1016/s0015-0282(02)03431-3 Schweppe et al. 2002, Schweppe 2002

Cite this article

Schweppe, K., & Ring, D. (2002). Peritoneal defects and the development of endometriosis in relation to the timing of endoscopic surgery during the menstrual cycle. Fertility and sterility, 78(4), 763-766. https://doi.org/10.1016/s0015-0282(02)03431-3