Urinary dysfunction after colorectal resection for endometriosis: results of a prospective randomized trial comparing laparoscopy to open surgery

OBJECTIVE: To evaluate urinary symptoms before and after colorectal resection for endometriosis using validated questionnaires. STUDY DESIGN: We randomly assigned 52 patients with colorectal endometriosis to undergo laparoscopically assisted or open colorectal resection. The median follow-up was 19 months. Urinary symptoms were evaluated using the International Prostate Score Symptom and the Bristol Female Low Urinary Tract Symptoms questionnaires. RESULTS: Dysuria was observed in 29% of cases postoperatively. Using Bristol Female Low Urinary Tract Symptoms and International Prostate Score Symptom scores, an alteration was observed for voiding symptoms (P = .01 and P = .006, respectively). No difference was observed between the laparoscopy and the open surgery group. An alteration of the International Prostate Score Symptom voiding symptoms was observed in the group that did not undergo nerve sparing surgery (P = .048). An alteration of the International Prostate Score Symptom voiding symptoms was observed for patients who underwent vaginal resection (P = .01) and parametrial resection (P = .02). CONCLUSION: Our findings confirm that colorectal resection for endometriosis is a source of urinary dysfunction whatever the surgical route.