• Am J Emerg Med · Jun 2018

    D-dimer predicts bleeding complication in out-of-hospital cardiac arrest resuscitated with extracorporeal membrane oxygenation.

    • Takayuki Otani, Hirotaka Sawano, Tomoaki Natsukawa, Reiko Matsuoka, Tetsufumi Nakashima, Motonori Takahagi, and Yasuyuki Hayashi.
    • Senri Critical Care Medical Center, Osaka Saiseikai Senri Hospital, 1-1-6, Tsukumodai, Suita-city, Osaka 565-0862, Japan. Electronic address: sonnyboy@tempo.ocn.ne.jp.
    • Am J Emerg Med. 2018 Jun 1; 36 (6): 1003-1008.

    PurposeIn out-of-hospital cardiac arrest (OHCA) patients resuscitated with veno-arterial extracorporeal membrane oxygenation (VA-ECMO), known as extracorporeal cardiopulmonary resuscitation (ECPR), bleeding is a common complication. The purpose of this study was to assess the risk factors for bleeding complications in ECPR patients.MethodsWe retrospectively analyzed the data for OHCA patients admitted to our hospital and resuscitated with ECPR between October 2009 and December 2016. We compared patients with and without major bleeding (i.e. the Bleeding Academic Research Consortium class≥3 bleeding) within 24h of hospital admission. Patients, whose bleeding complication was not evaluated, were excluded.ResultsDuring the study period, 133 OHCA patients were resuscitated with ECPR, of whom 102 (77%) were included. In total, 71 (70%) patients experienced major bleeding. There were significant differences in age (median 65 vs. 50years, P<0.001), prior antiplatelet therapy (25% vs. 3%, P=0.008), hemoglobin (median 11.6 vs. 12.6g/dL, P=0.003), platelet count (median 125 vs. 155×103/μL, P=0.001), and D-dimer levels on admission (median 18.8 vs. 6.7μg/mL, P<0.001) among patients with and those without major bleeding. Multivariate analysis showed significant associations between major bleeding and D-dimer levels (odds ratio, 1.066; 95% confidence interval, 1.018-1.116). Area under receiver-operating characteristic curve, which describes the accuracy of D-dimer levels in predicting major bleeding, was 0.76 (95% confidence interval, 0.66-0.87).ConclusionD-dimer levels may predict major bleeding in ECPR patients, suggesting that hyperfibrinolysis may be related to bleeding.Copyright © 2017 Elsevier Inc. All rights reserved.

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