Add this result to my export selection In women undergoing surgery for uterine fibroids, how do preoperative gonadotropin‐releasing hormone analogues (GnRHa) compare with placebo or no treatment? Source: Cochrane Clinical Answers (Remove filter) 24 July 2018 they observed no apparent differences between groups for hypermenorrhea, dysmenorrhea, pelvic pain, dyspareunia and difficult defecation... Type: Systematic Reviews (Remove filter)