“…GnRHas are associated with a greater decrease in fibroid and uterine volume compared to SPRMs. 9,29 When compared to no pretreatment, use of a GnRHa is associated with decreased fluid absorption at hysteroscopic myomectomy, 30,31 and decreased blood loss and transfusions at laparotomic/laparoscopic myomectomy 29,32 (Level I, A). The primary advantage of UPA over GnRHas is the rapid control of uterine bleeding (5-7 days with 10-and 5-mg UPA doses, respectively, vs 21 days for leuprolide, P < .01).…”