重症外傷患者における搬入時のD-dimer高値はフィブリノゲン値に関係なく予後不良を示唆する
Introduction : Elevated D-dimer levels in trauma patients are one of indicators of hyperfibrinolysis during the early phase of trauma. We hypothesized that high D-dimer levels would predict a poor outcome in severe trauma patients regardless of fibrinogen levels on arrival. Methods : Patients with m...
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Published in | Journal of the Japanese Association for the Surgery of Trauma Vol. 30; no. 3; pp. 331 - 340 |
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Main Authors | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format | Journal Article |
Language | Japanese |
Published |
一般社団法人 日本外傷学会
2016
The Japanese Association for the Surgery of Trauma |
Subjects | |
Online Access | Get full text |
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Summary: | Introduction : Elevated D-dimer levels in trauma patients are one of indicators of hyperfibrinolysis during the early phase of trauma. We hypothesized that high D-dimer levels would predict a poor outcome in severe trauma patients regardless of fibrinogen levels on arrival. Methods : Patients with more than 10 units of red cell concentrate transfusion and/or death during the first 24 hours were classified with a poor outcome. Based on cut-off values for fibrinogen and D-dimer to differentiate the outcomes were compared. Results : In a stepwise logistic regression analysis, fibrinogen and D-dimer levels were statistically significant predictors of a poor outcome. Optimal cut-off values for fibrinogen and D-dimer of 190 mg/dL and 38 mg/L, respectively. Based on these values, patients were divided into four groups : low D-dimer/high fibrinogen, low D-dimer/low fibrinogen, high D-dimer/high fibrinogen, and high D-dimer/low fibrinogen. The survival rate in the high D-dimer/low fibrinogen group was lower than in the other three groups. Moreover, the survival rate in the high D-dimer/high fibrinogen group was statistically lower than that in the low D-dimer/high fibrinogen and low D-dimer/low fibrinogen groups. Conclusions : High D-dimer levels on arrival are a strong predictor of poor outcome in severe trauma patients, regardless of fibrinogen levels.
目的 : 外傷急性期におけるフィブリノゲン (fibrinogen, 以下Fbg) 低値は予後不良を示唆する. D–dimerは線溶亢進の指標であり外傷重症度を反映するが, 予後予測におけるFbgとの関係は明らかにされていない. 今回, 搬入時のD–dimer高値がFbg値に関係なく予後不良を示唆する可能性を検証した. 方法 : Japanese Observational Study for Coagulation and Thrombolysis in Early Trauma (J–OCTET) データベースを用いて, 来院24時間以内における10単位以上の赤血球輸血, もしくは24時間以内の死亡を転帰不良と定義した. ROC曲線を用いて, 搬入時のFbg値とD–dimer値の転帰不良に対する閾値を求め, その閾値に基づいた群分けを行い比較した. 結果 : 転帰不良に対する閾値はFbg=190 mg/dLとD–dimer=38 mg/Lであった. この閾値に基づき, (1)D–dimer低値/Fbg高値, (2)D–dimer低値/Fbg低値, (3)D–dimer高値/Fbg高値, (4)D–dimer高値/Fbg低値の4群に分けた. (4)群の生存率は他の3群よりも有意に低値であった. (3)群の生存率は, (1)群および(2)群の生存率よりも有意に低値であった. 結語 : ISS16以上の成人重症外傷においては, 搬入時のD–dimer高値は, Fbg値に関係なく, 予後不良の予測因子である. |
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ISSN: | 1340-6264 2188-0190 |
DOI: | 10.11382/jjast.30.331 |