Short-term outcomes of endometriosis surgery in Ontario: A population-based cohort study

Olga Bougie, Chad McClintock, McClintock C, Jessica Pudwell, Susan B. Brogly, Maria P. Vélez
Acta obstetricia et gynecologica Scandinavica · 2020 · vol. 100(6) , pp. 1140–1147 · doi:10.1111/aogs.14071 · PMID:33368183 · W3117144628
Observational OA: bronze CC0 ⤵ 9 in-corpus citations
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This population-based cohort study found that while complications from endometriosis surgery in Ontario were generally low, the risk of intraoperative and postoperative complications increased with the extent of surgery, from minor conservative procedures to hysterectomies.

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Abstract

INTRODUCTION: Our objective was to compare the short-term outcomes by type of surgical management of endometriosis in Ontario, Canada and to characterize the population of women undergoing surgical management of endometriosis. MATERIAL AND METHODS: We conducted a population-based cohort study including women aged 18-50 years undergoing same-day or inpatient surgery for endometriosis from 1 April 2002 through 31 March 2018. Surgery was classified as minimally invasive hysterectomy (MIH), total abdominal hysterectomy (TAH) or minor or major conservative (uterus-preserving) surgery. Outcomes examined included length of stay, intraoperative complications, postoperative complications, emergency department visits, ambulatory care visits, and readmission. We estimated the relative risk of these outcomes in minor, major conservative surgery and TAH vs MIH adjusted for age, income quintile, parity, and comorbidities. RESULTS: A total of 85 605 patients underwent surgery, 12.9% MIH, 22.1% TAH, 36.3% major conservative, and 28.6% minor conservative. The mean age at index surgery was 37.6 ± 7.7 years. Before surgery, 70.6% of patients had visited a physician for pain at least once (64.7% MIH, 69.5% TAH, 71.1% major conservative and 73.4% minor conservative) and 23.5% of patients had sought infertility consultation (5.7% MIH, 6.6% TAH, 29.3% major conservative and 37.1% minor conservative). The overall risk of intraoperative and postoperative complications was 1.5% and 4.7%, respectively. In adjusted models, compared with those undergoing minor conservative surgery, those having major conservative surgery were 1.77 (95% CI 1.49-2.11) times as likely to experience an intraoperative complication, those having MIH and TAH were 2.55 (95% CI 2.08-3.13) and 2.34 (95% CI 1.93-2.82) times as likely to do so, respectively. Similarly, compared with those undergoing minor conservative surgery, those having major conservative surgery were 2.60 (95% CI 2.30, 2.93) times as likely to experience any postoperative complication, and those having MIH and TAH were 4.69 (95% CI 4.11-5.36) and 5.38 (95% CI 4.76-6.09) times as likely to do so, respectively. CONCLUSIONS: Approximately one-third of patients undergoing surgical management for endometriosis in Ontario between 2002 and 2018 had a hysterectomy. Overall, complications following surgery were low, and dependent on extent of surgery. These results should help to inform preoperative counseling for patients and health policy development for providers.

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Condition tags

endometriosisinfertility

MeSH descriptors

Endometriosis Endometriosis Gynecologic Surgical Procedures Laparoscopy Adult Adult Ambulatory Surgical Procedures Ambulatory Surgical Procedures Ambulatory Surgical Procedures Cohort Studies Cohort Studies Endometriosis Endometriosis Female Female Gynecologic Surgical Procedures Gynecologic Surgical Procedures Humans Humans Hysterectomy

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