不稳定性心绞痛危险度分级与血浆脑钠素的关系及意义

Laboratory Medicine and Clinic(2007)

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Abstract
目的探讨不稳定性心绞痛(UAP)患者临床危险度分级与血浆脑钠素(BNP)的关系及意义。方法入选49例UAP患者(UAP组),并进行临床危险度分级,低危组20例,中危组18例,高危组11例;20例健康对照者;应用酶联免疫吸附法测定血浆BNP水平,采用超声心动图测量左心室射血分数(LVEF)。结果UAP组较健康对照组血浆BNP水平明显增高(P<0.001),两组间的LVEF差异无统计学意义(P=0.071)。血浆BNP水平在UAP组各亚组之间差异有统计学意义(F=44.44,P<0.001),BNP水平随着危险度级别的增高而增加,各级之间以及每两级之间的差异有统计学意义(P<0.05)。结论心功能正常的UAP患者血浆BNP水平增高,BNP水平与心绞痛临床危险度分级有关,危险度级别越高,BNP水平越高。
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Key words
risk stratification,brain natriuretic peptide,unstable angina pectoris
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