Impact of monopolar and bipolar endometrial resection on abnormal uterine bleeding.

Study Objective. To compare two procedures for endometrial resection: resectoscopy with monopolar knife versus resectoscopy with bipolar knife. Patients and methods. 76 perimenopausal patients affected by DUB (Dysfunctional Uterine Bleeding), no longer wishing to remain pregnant and having failed to respond to pharmacological treatment, underwent endometrial ablation with monopolar loop (group A: 38 women) or bipolar loop (group B: 38 women). Operative parameters, complication rate, menstrual outcome were considered. Results. Operative time was no different between groups. The amount of distention fluid adsorbed was significantly higher in group A than in group B, and late cumulative complication rate was 44% in group A and 24% in group B. Menstrual cycle was, overall, controlled in both groups. Conclusions. Bipolar electrode is as effective as monopolar electrode for endometrial resection, but was safer than monopolar knife.