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Background  Determining the presence of an active arterial hemorrhage in the acute phase is important as a treatment strategy in patients with pelvic fracture. The purpose of this study was to evaluate whether coagulation biomarkers could predict arterial extravasation, especially in pelvic fracture patients with stable hemodynamics.    Methods  We studied patients with a pelvic fracture who had a systolic blood pressure above 90 mmHg and lactate level less than 5.0 mmol/L on hospital arrival. Patients were divided into two groups: those with arterial extravasation on enhanced computed tomography (CT) or angiography (extravasation [+] group) and those without arterial extravasation (extravasation [−] group). Coagulation biomarkers measured on arrival were statistically compared between the two groups. Predictive ability of arterial extravasation using coagulation biomarkers was evaluated by receiver-operating characteristic analyses provided area under the receiver-operating characteristic curves (AUROC) and diagnostic indicators with optimal cutoff point including sensitivity, specificity, positive and negative predictive values, and diagnostic odds ratio (DOR).    Results  Sixty patients were analyzed. Fibrin degradation products (FDP), D-dimer, prothrombin time–international normalized ratio (PT–INR), and the ratio of FDP to fibrinogen were significantly higher in the extravasation (+) group than in the extravasation (−) group (FDP, 242 μg/mL [145–355] vs. 96 μg/mL [58–153]; D-dimer, 81 μg/mL [41–140] vs. 39 μg/mL [21–75]; PT–INR, 1.09 [1.05–1.24] vs. 1.02 [0.98–1.08]; and ratio of FDP to fibrinogen, 1.06 [0.85–2.01] vs. 0.46 [0.25–0.74]). The highest AUROC was with a ratio of FDP to fibrinogen of 0.777 (95% confidence interval, 0.656–0.898), and the highest predictive ability in terms of DOR was with a ratio of FDP to fibrinogen (sensitivity, 0.76; specificity, 0.76; DOR 9.90).    Conclusion  Coagulation biomarker could predict of arterial extravasation in pelvic fracture patients with stable hemodynamics.    Electronic supplementary material  The online version of this article (10.1186/s13017-019-0234-5) contains supplementary material, which is available to authorized users.

Prediction of arterial extravasation in pelvic fracture patients with stable hemodynamics using coagulation biomarkers