纤维蛋白原测定对弥散性血管内凝血前期的诊断效能

Chinese Journal of Hemorheology(2013)

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Abstract
目的:统计纤维蛋白原(Fg)测定对DIC前期(pre-DIC)诊断的敏感性、特异性及诊断效能。方法pre-DIC组和对照组各120例,均为男40例,女80例。Sysmex CA1500凝固法测定Fg,同时进行鱼精蛋白副凝固试验(3P)。结果pre-DIC组Fg水平与对照组t检验差异无统计学意义(P>0.05);患者中Fg<1.5 g/L占17.50%,Fg>4.0 g/L占8.33%;分别以Fg<1.5 g/L、Fg>4.0 g/L、3P阳性为阈值,pre-DIC组阳性例数较对照组χ2检验差异均有统计学意义(P<0.05);Fg诊断pre-DIC的特异度98.33%,灵敏度17.50%,准确度和Kappa指数低于3P;阳性预测值91.30%,阴性预测值低于60%。结论由于Fg的双相性,对pre-DIC的诊断效能低,Fg<1.5 g/L+3P阳性,pre-DIC可能大,有条件的医院应增设D-二聚体和纤维蛋白原/纤维蛋白降解产物检测筛查pre-DIC。
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