• Joonghee Kim, Kyuseok Kim, Jae Hyuk Lee, You Hwan Jo, Taeyun Kim, Joong Eui Rhee, and Kyeong Won Kang.
• Department of Emergency Medicine, Seoul National University Bundang Hospital, 166 Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 463-707, Republic of Korea.
• Resuscitation. 2013 Jan 1;84(1):48-53.

ObjectiveWe sought to investigate the prognostic implication of early coagulopathy represented by initial DIC score in out-of-hospital cardiac arrest (OHCA).MethodsOHCA registry was analyzed to identify patients with ROSC without recent use of anticoagulant between 2008 and 2011. Patients were assessed for prehosptial factors, initial laboratory results and therapeutic hypothermia. Outcome variables were survival discharge, 6-month CPC and survival duration within the first week after ROSC. Logistic regression and Cox proportional hazards models were used for both univariable and multivariable analysis.ResultsAmong 273 eligible patients, initial DIC score was available in 252 (92.3%). Higher DIC score was associated with increased inhospital death (odds ratio [OR], 1.89 per unit; 95% confidence interval [CI], 1.48-2.41) and unfavorable long-term outcome (6-month CPC 3-5; OR, 2.21 per unit; 95% CI, 1.60-3.05). The adjusted ORs for both outcomes were 1.61 (95% CI, 1.17-2.22) and 1.84 (95% CI, 1.26-2.67), respectively. We categorized DIC score in five groups as <3, 3, 4, 5 and >5 and analyzed differential mortality risk using Cox proportional hazards model. Compared with reference group (DIC score<3), the adjusted HR for early mortality in each remaining group was 1.96 (95% CI, 1.13-3.40), 2.26 (95% CI, 1.27-4.02), 2.77 (95% CI, 1.58-4.85) and 4.29 (95% CI, 2.22-8.30), respectively (p-trend<0.001). The area under the receiver operating characteristic of DIC score for prediction of unfavorable long-term outcome was 0.79 (95% CI, 0.69-0.88).ConclusionIncreased initial DIC score in OHCA was an independent predictor for poor outcomes and early mortality risk.Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.

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