Uterine artery embolization versus occlusion for uterine leiomyomas: a pilot randomized clinical trial.

Study Objective: To compare perioperative pain and institutional use for women undergoing transcatheter uterine artery embolization (UAE) and transcatheter uterine artery occlusion (UAO) for the treatment of heavy uterine bleeding associated with uterine leiomyomas.

Design: A pilot double-blind, randomized clinical trial (Canadian Task Force classification I).

Setting: Large, university-affiliated community hospital with multiple residency programs including obstetrics and gynecolgoy and radiology.