• Am J Emerg Med · Jun 2017

    Multicenter Study

    FAST for blunt abdominal trauma: Correlation between positive findings and admission acid-base measurement.

    • Kamran Heidari, Mehrdad Taghizadeh, Sadrollah Mahmoudi, Hamidreza Panahi, Ensieh Ghaffari Shad, and Shadi Asadollahi.
    • Department of Emergency Medicine, Loghmane-Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
    • Am J Emerg Med. 2017 Jun 1; 35 (6): 823-829.

    PurposeThis study aimed to determine any association between positive findings in ultrasonography examination and initial BD value with regard to diagnosis of intra-abdominal bleeding following blunt abdominal trauma.MethodsA prospective, multi-center study of consecutive adult patients was performed from April to September 2015. Demographics, initial vital signs and arterial BD were evaluated with respect to presence of any association with intra-abdominal bleeding and in-hospital mortality. FAST study was performed to find intra-abdominal bleeding. Receiver operating characteristic (ROC) curves tested the ability of BD to identify patients with intra-abdominal hemorrhage and probable mortality.ResultsA total of 879 patients were included in final analysis. The mean (SD) age was 36.68 (15.7) years and 714 patients (81.2%) were male. According to multivariable analysis, statistically significant association was observed between negative admission BD and both intra-abdominal bleeding (OR 3.48, 95% CI 2.06-5.88, p<0.001) and in-hospital mortality (OR 1.55, 95% CI 1.49-1.63, p<0.001). ROC curve analysis demonstrated sensitivity of 92.7% and specificity of 22.1% for the best cut-off value of BD (-8mEq/L) to diagnose internal hemorrhage. Further, a cut-off value of -7mEq/L demonstrated significant predictive performance, 94.8% sensitivity and 53.6% specificity for in-hospital mortality.ConclusionThis study revealed that arterial BD is an early accessible important marker to identify intra-abdominal bleeding, as well as to predict overall in-hospital mortality in patients with blunt abdominal trauma.Copyright © 2017. Published by Elsevier Inc.

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