Laparoscopic Approach in Bladder Endometriosis, Intraoperative and Postoperative Outcomes

Endometriosis is a benign condition affecting 10-20% of women at reproductive age. The urinary tract is affected in 0.3-12.0% of women with endometriosis and in 19.0-53.0% of women with deep infiltrating endometriosis. The bladder is the most commonly affected organ in the urinary tract with a prevalence of up to 80%. Bladder endometriosis is defined as the occurrence of endometrial glands and stroma in the detrusor muscle. The aim of the study was to present the detailed technique and intraoperative and postoperative outcomes of laparoscopic resection of bladder endometriosis.

This was a retrospective study analyzing all surgical procedures, carried out at the Academic Hospital Cologne Weyertal between January 2014 and December 2022. In total 23,862 surgical reports were analyzed, and only patients (n=33 patients) with bladder endometriosis were included in the study.

Follow-up was performed in 25 patients by phone contact. Twenty-three patients (92%) reported an improvement of symptoms, especially of dysuria, and an increase of quality of life. Only two patients (8%) reported no change in symptoms (dysmenorrhea and dyspareunia). Two patients (8%) reported bladder dysfunction. Mild postoperative pollakiuria was reported by two patients (8%). Four patients (with mild bladder dysfunction and pollakiuria) were satisfied with postoperative results owing significant improvement of symptoms and increasing the quality of life.

Surgical treatment of bladder endometriosis can be performed by a gynecologist. In cases where a ureteroneocystostomy is required or the localization of endometriosis nodule is unfavorable, an intervention by a multidisciplinary team is recommended. Laparoscopic partial cystectomy and shaving seem to be an appropriate method for improving urinary symptoms. This surgical approach requires excellent laparoscopic skills.