Systematic review of patient-specific pre-operative predictors of pain improvement to endometriosis surgery

Elizabeth Ball, Babu Karavadra, Bethany Jade Kremer-Yeatman, Connor Mustard, Kim May Lee, Sharandeep Bhogal, Julie Dodds, Andrew W. Horne, John Allotey, Carol Rivas

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Abstract

BACKGROUND: Up to 28% of endometriosis patients do not get pain relief from therapeutic laparoscopy but this subgroup is not defined.

OBJECTIVES: To identify any prognostic patient-specific factors (such as but not limited to patients' type or location of endometriosis, sociodemographics and lifestyle) associated with a clinically meaningful reduction in post-surgical pain response to operative laparoscopic surgery for endometriosis.

SEARCH STRATEGY: PubMed, Cochrane and Embase databases were searched from inception to 19 May 2020 without language restrictions. Backward and forward citation tracking was used.

SELECTION CRITERIA DATA COLLECTION AND ANALYSIS: Cohort studies reporting prognostic factors, along with scores for domains of pain associated with endometriosis before and after surgery, were included. Studies that compared surgeries, or laboratory tests, or outcomes without stratification were excluded. Results were synthesised but variation in study designs and inconsistency of outcome reporting precluded us from doing a meta-analysis.

MAIN RESULTS: Five studies were included. Quality assessment using the Newcastle-Ottawa scale graded three studies as high, one as moderate and one as having a low risk of bias. Four of five included studies separately reported that a relationship exists between more severe endometriosis and stronger pain relief from laparoscopic surgery.

CONCLUSION: Currently, there are few studies of appropriate quality to answer the research question. We recommend future studies report core outcome sets to enable meta-analysis.

LAY SUMMARY: Endometriosis is a painful condition caused by displaced cells from the lining of the womb, causing inflammation and scarring inside the body. It affects 6-10% of women and there is no permanent cure. Medical and laparoscopic surgical treatments are available, but about 28% of patients do not get the hoped-for pain relief after surgery. Currently, there is no way of predicting who gets better and who does not. We systematically searched the world literature to establish who may get better, in order to improve counselling when women choose treatment options. We identified five studies of variable quality showing: More complex disease (in specialist hands) responds better to surgery than less, but more studies needed.

Original languageEnglish
Pages (from-to)69-80
Number of pages12
JournalReproduction and Fertility
Volume2
Issue number1
DOIs
Publication statusPublished - 16 Feb 2021

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© 2021 The authors.

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