2269. Uterine Artery Embolization in the Treatment of Postpartum Uterine Hemorrhage: A Single Center Experience
Authors * Denotes Presenting Author
  1. Sunanda Nimmalapudi *; Pinnamaneni Siddhartha Institute of Medical Sciences
To determine the safety and efficacy of Uterine Artery Embolization (UAE) for the treatment of primary postpartum hemorrhage (PPH) and to determine the factors associated with clinical outcomes.

Materials and Methods:
This prospective single-center study was institutional review board approved, and informed consent was waived. Outcomes were analyzed in 502 patients who underwent UAE for primary PPH between January 2012 and May 2020. Mode of delivery, causes of bleeding, detailed laboratory and treatment records, and clinical outcomes were recorded. Clinical success was defined as cessation of bleeding after initial session of UAE without the need for additional UAE or surgery. Univariate and multivariate analyses were performed to determine the factors related to clinical outcomes.

The clinical success rate was 91.8% (460 of 502). Among the 42 failed cases, 21 underwent repeat UAE, 18 underwent additional surgery, and 3 recovered with conservative management. Overall bleeding control was achieved in 97.0% (487 of 502) of the patients. Overall mortality was 1.8% (9 of 502) after the first (n = 3) or second (n = 1) session of UAE or additional surgery (n = 1). Among the 226 patients with long-term follow-up, 220 maintained a regular menstrual cycle and 16 had successful pregnancies. Univariate analysis showed that cesarean section delivery, disseminated intravascular coagulation (DIC), and massive transfusion of more than 10 red blood cell units were related to failed UAE. Multivariate analysis showed that DIC (odds ratio, 0.35; P = .03) and massive transfusion (odds ratio, 0.11; P < .001) were significantly related to clinical failure.

Uterine Artery Embolization is safe and effective for managing primary Postpartum Hemorrhage. Patients with DIC and massive transfusion were likely to have poor results after UAE.