QRS波时限与老年急性心肌梗死Killip分级、血清BNP、LVEF的相关性

Correlation between QRS Duration and Killip Classification,Serum BNP and LVEF in Elderly Patients with Acute Myocardial Infarction

目的:分析心电图QRS波时限与老年急性心肌梗死患者Killip分级、血清BNP、LVEF的相关性。方法:选取2015年1月-2019年6月笔者所在医院159例老年急性心肌梗死患者,均进行心电图检查,依据QRS波时限将患者分为A组(60 ms≤QRS时限≤80 ms)、B组(80 ms<QRS时限<100 ms)、C组(QRS时限≥100 ms),检测三组心功能[血清B型脑钠肽(BNP)、左心室射血分数(LVEF)、Killip分级],并分析QRS波时限与Killip分级、血清BNP、LVEF的相关性。结果:C组Ⅰ级少于A组、B组,Ⅲ级多于A组、B组(P<0.05);C组血清BNP高于A组、B组,LVEF低于A组、B组(P<0.05);心电图QRS时限与Killip分级、血清BNP呈正相关,与LVEF呈负相关(P<0.05)。结论:心电图QRS波时限与老年急性心肌梗死Killip分级、血清BNP呈正相关,与LVEF呈负相关,可为临床判断患者心功能状态提供诊断依据。

Objective:To analyze the correlation between QRS duration of electrocardiogram and Killip classification,serum BNP and LVEF in elderly patients with acute myocardial infarction.Method:From January 2015 to June 2019,159 elderly patients with acute myocardial infarction in our hospital were selected for electrocardiogram examination.According to the QRS duration,patients were divided into the group A(60 ms≤QRS duration≤80 ms),the group B(80 ms<QRS duration<100 ms)and the group C(QRS duration≥100 ms).The cardiac function[serum B-type brain natriuretic peptide(BNP),left ventricular ejection fraction(LVEF),Killip classification]of the three groups were detected,and the correlation between QRS duration and Killip classification,serum BNP and LVEF was analyzed.Result:LevelⅠin the group C was less than that of the group A and the group B,and levelⅢwas more than that of the group A and the group B(P<0.05).Serum BNP in the group C was higher than that of the group A and the group B,and LVEF was lower than that of the group A and the group B(P<0.05).QRS duration of electrocardiogram was positively correlated with Killip classification and serum BNP,and negatively correlated with LVEF(P<0.05).Conclusion:QRS duration of electrocardiogram is positively correlated with Killip classification and serum BNP of elderly acute myocardial infarction,and negatively correlated with LVEF,which can provide diagnostic basis for clinical judgment of cardiac function status of patients.