高敏肌钙蛋白T与慢性心力衰竭的相关性及对急性心肌梗死的鉴别意义

被引:75
作者
郭慧佳 [1 ]
张建义 [1 ]
胡亚军 [2 ]
张黎明 [3 ]
机构
[1] 桂林医学院附属医院心内科
[2] 桂林医学院基础医学院
[3] 桂林医学院附属医院内分泌科
关键词
肌钙蛋白T; 心力衰竭; 心肌梗死; 超声心动描记术;
D O I
暂无
中图分类号
R541.6 [血液循环衰竭];
学科分类号
100201 [内科学];
摘要
目的探讨高敏肌钙蛋白T(HS-cTNT)与慢性心力衰竭的相关性以及对急性心肌梗死的鉴别意义。方法 2012年1—11月选择桂林医学院附属医院心内科住院的慢性心力衰竭患者200例作为慢性心力衰竭组,并选取同期收住院的急性心肌梗死患者100例作为心肌梗死组,正常对照组50例(由桂林医学院健康学生自愿参加)。依据血清HS-cTNT水平参考值0.014 ng/ml,将慢性心力衰竭组患者分为HS-cTNT升高组(127例)和HS-cTNT正常组(73例)。入院第1天测定各组入选对象的血清HS-cTNT水平;超声心动图检测慢性心力衰竭组患者的心脏各腔径(左心室直径、左心房直径、右心室直径)及射血分数;观察慢性心力衰竭患者6个月后再入院率。结果慢性心力衰竭组血清HS-cTNT水平〔(0.36±0.10)ng/ml〕是正常对照组〔(0.03±0.01)ng/ml〕的18倍(P<0.05);急性心肌梗死组血清HS-cTNT水平〔(3.02±1.83)ng/ml〕是慢性心力衰竭组的8倍(P<0.05)。当血清HS-cTNT的水平在0.08~0.23 ng/ml时对诊断慢性心力衰竭即有意义。不同心功能分级患者血清HS-cTNT水平比较,差异有统计学意义(P<0.05);其中心功能Ⅲ、IV级患者血清HS-cTNT水平高于Ⅱ级患者,心功能Ⅳ级患者血清HS-cTNT水平高于Ⅲ级患者(P<0.05)。不同病因心脏病患者血清HS-cTNT水平比较,差异有统计学意义(P<0.05);其中糖尿病性心肌病、缺血性心肌病、扩张性心肌病患者血清HS-cTNT水平高于高血压心脏病患者,扩张性心肌病患者血清HS-cTNT水平高于糖尿病性心肌病和缺血性心肌病患者(P<0.05)。慢性心力衰竭患者血清HS-cTNT水平与心功能分级、左心室直径、左心房直径、右心室直径呈正相关(r=0.330、0.150、0.142、0.146,P<0.05),与射血分数呈负相关(r=-1.740,P<0.01)。慢性心力衰竭患者中HS-cTNT升高组再入院率为40.9%(52/127),高于HS-cTNT正常组的21.9%(16/73),差异有统计学意义(χ2=52.50,P<0.01)。结论慢性心力衰竭患者血清HS-cTNT水平增高,其血清水平与心脏各腔径呈正相关,与射血分数呈负相关。当血清HS-cTNT的水平在0.08~0.23 ng/ml时,可作为慢性心力衰竭与急性心肌梗死的鉴别诊断点。检测慢性心力衰竭患者血清HS-cTNT水平对临床治疗和预防慢性心力衰竭进展具有重要意义。
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页码:871 / 874
页数:4
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