Evidence-based gynecological practice—clinical review 2: Surgery for pain in endometriosis. What is the evidence?
This paper demonstrates how to search for and appraise literature to answer a clinical question regarding surgical treatment for endometriosis-related pain when medical treatments have failed.
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This paper is an evidence-based gynecological clinical review that demonstrates how to search the biomedical literature to answer a clinical question about whether conservative laparoscopic surgery reduces pain or improves quality of life in women with endometriosis whose medical therapy has failed. Using a detailed PICO framework and searches across Medline (Ovid), the Cochrane Library, DARE, and HTA—using MeSH terms and specific surgery-related keywords—the authors identify and screen citations, emphasizing that high-quality evidence is often limited in surgical endometriosis research because RCTs are rare and have narrowly selected populations. As a worked example, they describe that a relevant Cochrane review available in 2001 included only one RCT, in which 63 women with minimal-to-moderate endometriosis were randomized to CO2 laser vaporization plus uterine nerve ablation versus diagnostic laparoscopy placebo, and note a significant reduction of pain outcomes (with details continuing beyond the provided excerpt). The main limitation explicitly highlighted is that evidence hierarchies and RCT inclusion/exclusion criteria may not represent real-world patients. This paper is centrally about endometriosis — it specifically models how to find and appraise evidence for the effectiveness of conservative laparoscopic surgery for pain in endometriosis.
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