纤维蛋白相关标志物对重症肺炎患儿DIC前状态的诊断价值

目的探讨纤维蛋白单体(FM)、D-二聚体(D-D)、纤维蛋白(原)降解产物(FDP)3种纤维蛋白相关标志物在重症肺炎患儿弥散性血管内凝血前状态(Pre-DIC)中的诊断价值。方法 213例重症肺炎患儿根据其是否合并Pre-DIC分为Pre-DIC组和病例对照组,另选择40例健康儿童作为正常对照组。分析各组的FM、D-D、FDP、凝血酶原时间(PT)、活化部分凝血活酶时间(APTT)、纤维蛋白原(FIB)、血小板计数(PLT)、血栓调节蛋白(TM)水平,应用受试者工作特征曲线对各指标进行比较和评价。结果三组间除FIB外其余各指标差异均有统计学意义(P均0.05),其中FM、D-D、FDP、APTT三组间两两比较差异均有统计学意义(P均0.01),Pre-DIC组最高,病例对照组次之;Pre DIC组的PT明显高于正常对照组与病例对照组(P0.05),而后两组的PT差异无统计学意义(P0.05);Pre-DIC组和病例对照组的TM和PLT均高于正常对照组(P0.01),但前两组的差异均无统计学意义(P0.05)。各指标中FM、D-D、FDP诊断重症肺炎患儿DIC前状态的曲线下面积较大,分别为0.84、0.76、0.64,三者联合诊断时曲线下面积为0.85。结论纤维蛋白相关标志物FM、D-D、FDP可作为重症肺炎患儿Pre-DIC诊断中有价值的标志物,3项联合检测可提高诊断准确性。

Diagnostic signiifcance of ifbrin related markers for pre-disseminated intravascular coagulation state in children with severe pneumonia

Objectives To study the signiifcance of ifbrin related markers such as ifbrin monome (FM), D-dimer (D-D), fibrinogen and fibrin degradation products (FDP) in diagnosis of pre-disseminated intravascular coagulation (pre-DIC) state in children with severe pneumonia. Methods A total of 213 children with severe pneumonia in pediatric intensive care unit were divided into pre-DIC group and case control group according to the occurrence of pre-DIC. And 40 healthy children were included as normal control group. FM、D-D、FDP、prothrombin time (PT)、activated partial thromboplastin time (APTT)、ifbrinogen (FIB)、platelet count (PLT)、thrombomodulin (TM) levels were analyzed. Receiver operating characteristic curve was used to evaluate the above indexes. Results All the markers but FIB showed signiifcant difference among the three groups (P<0 . 05 ). The differences of FM、D-D、FDP、APTT in paired comparison among the three groups were also signiifcant (P<0.01), Pre-DIC group had the highest level and case control group was the second. Pre-DIC group had higher PT than that of the other two groups (P<0 . 05 ), but PT levels in normal control group and the control group are of no signiifcant difference (P>0 . 05 ). Compared with those in normal control group, TM and PLT levels were signiifcantly higher in the other two groups (P<0 . 01 ), but the differences of TM and PLT in pre-DIC group were not signiifcant in comparison to those in case control group (P>0 . 05 ). FM、D-D、FDP had larger area under curves (AUC) for pre-DIC than other indexes ( 0 . 84、0 . 76、0 . 64 , respectively). The AUC for the joint detection of the three indexes was 0 . 85 . Conclusions Fibrin related markers such as FM、D-D and FDP are valuable indexes in diagnosis of pre-DIC state in children with severe pneumonia, the joint detection of the three indexes would help to improve diagnostic accuracy.