非ST段抬高急性冠状动脉综合征患者血浆NT-ProBNP与GRACE危险分层的关系

目的:探讨非ST段抬高急性冠状动脉综合征(NSTE-ACS)患者血浆N-末端脑钠肽前体(NT-proBNP)与全球急性冠状动脉事件注册(GRACE)评分以及危险分层的关系。方法:入选126例在我院住院的NSTE-ACS患者,其中不稳定性心绞痛(UA)84例,非ST段抬高心肌梗死(NSTEMI)42例。入院后测定血浆NT-proBNP浓度,进行常规实验室检测及超声心动图检查。采用GRACE评分标准对患者进行风险评估,计算GRACE积分并进行危险分层。分析NSTE-ACS患者血浆NT-ProBNP浓度与GRACE积分及分层的关系。结果:NSTEMI组LgNT-ProBNP高于UA组(2.87±0.57)vs.(2.11±0.56),P<0.001],NSTEMI组GRACE分值高于UA组(141.45±33.13)vs.(102.73±30.44),P<0.001]。将所有NSTE-ACS患者作GRACE危险分层,高危组LgNT-ProBNP显著高于中危组、低危组(P<0.001)。NT-ProBNP按照四分位数分组后,P75以上组GRACE分值分别高于另外3个四分位数组(P<0.001),P75以上组中GRACE高危百分比高于P75以下组(P<0.001)。UA及NSTEMI组的LgNT-ProBNP与其GRACE分值均有正相关关系(r=0.40,P<0.001 vs.r=0.52,P<0.001),全部NSTE-ACS患者的LgNT-ProBNP与GRACE分值也呈正相关关系(r=0.59,P<0.001)。结论:NSTE-ACS患者NT-ProBNP水平越高,GRACE积分越高,NT-ProBNP的检测在对NSTE-ACS患者进行早期、快速的危险度分层方面有着独特的价值。

Relationship between N-terminal pro-brain natriuretic peptide and GRACE risk stratification in non ST-segment elevation acute coronary syndrome

Objective:To study the relationship between N-terminal pro-brain natriuretic peptide(NT-proBNP)level and global registry of acute coronary events(GRACE) risk score as well as risk stratification in patients with non-ST-segment elevation acute coronary syndrome(NSTE-ACS).Methods:We enrolled 126 pa-tients with non-ST-segment elevation acute coronary syndrome that admitted in our hospital,84 patients with UA and 42 patients with NSTEMI.All the patients received plasma NT-ProBNP measurement,routine laboratory t...