Uterine Fibroid Embolisation Uterine artery embolization (UAE) is a process to treat fibroids without surgery. Two of the more necessary are the EMbolization versus hysterectoMY (EMMY) trial and the Randomized Trial of Embolization versus Surgical Therapy for Fibroids (RELAXATION) trial. At this time, fibroid embolization is being carried out at hospitals and medical centers across the country, in Canada and world wide.