• Ha Young Lee, Ji Hoon Shin, Jinoo Kim, Hyun-Ki Yoon, Gi-Young Ko, Hye-Sung Won, Dong Il Gwon, Jin Hyoung Kim, Kyung Sik Cho, and Kyu-Bo Sung.
• Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, 388-1 Pungnap2-dong, Songpa-gu, Seoul 138-736, Korea.
• Radiology. 2012 Sep 1;264(3):903-9.

PurposeTo evaluate the safety and efficacy of pelvic arterial embolization (PAE) for the treatment of primary postpartum hemorrhage (PPH) and to determine the factors associated with clinical outcomes.Materials And MethodsThis retrospective single-center study was institutional review board approved, and informed consent was waived. Outcomes were analyzed in 251 patients who underwent PAE for primary PPH between January 2000 and February 2011. 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 PAE without the need for additional PAE or surgery. Univariate and multivariate analyses were performed to determine the factors related to clinical outcomes.ResultsThe clinical success rate was 86.5% (217 of 251). Among the 34 failed cases, 12 underwent repeat PAE, 16 underwent additional surgery, and three recovered with conservative management. Overall bleeding control was achieved in 98.0% (246 of 251) of the patients. Overall mortality was 2% (five of 251) after the first (n = 3) or second (n = 1) session of PAE or additional surgery (n = 1). Among the 113 patients with long-term follow-up, 110 (97.3%) maintained a regular menstrual cycle and 11 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 PAE. Multivariate analysis showed that DIC (odds ratio, 0.36; P = .04) and massive transfusion (odds ratio, 0.10; P < .001) were significantly related to clinical failure.ConclusionPAE is safe and effective for managing primary PPH. Patients with DIC and massive transfusion were likely to have poor results after PAE.© RSNA, 2012

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