Prediction of arterial extravasation in pelvic fracture patients with stable hemodynamics using coagulation biomarkers
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(2019) 14:14
RESEARCH ARTICLE
Open Access
Prediction of arterial extravasation in pelvic fracture patients with stable hemodynamics using coagulation biomarkers Makoto Aoki1* , Takayuki Ogura2, Shuichi Hagiwara1, Mitsunobu Nakamura2 and Kiyohiro Oshima1
Abstract 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. Keywords: Trauma, Pelvic fracture, Coagulopathy, Arterial extravasation
* Correspondence: [email protected] 1 Department of Emergency Medicine, Gunma University Graduate School of Medicine, Gunma, Japan Full list of author information is available at the end of the article © The Author(s). 2019 Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (ht
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