超声声学定量检测心肌梗死患者左心功能及其与左心室重构的关系

目的：探讨54例冠心病亚急性及陈旧性心肌梗死患者左心室重构对其心功能及心律失常的影响。方法：用超声声学定量技术检测54例患者的心功能并根据患者有无左心室腔增大分为左心室重构组（34例）及非左心室重构组（20例），同时设正常对照组（30例），用24小时动态心电图观察其中45例患者心律失常发生情况。结果：冠心病亚急性及陈旧性心肌梗死患者发生左心室重构时，其左心室收缩功能与舒张功能明显低下，而冠心病亚急性及陈旧性心肌梗死患者未发生左心室重构时，仅表现为左心室舒张功能低下。比较两组患者心律失常发生情况，发现左心室重构组心律失常发生率明显高于非左心室重构组，尤其以室性心律失常及传导阻滞发生率为高。结论：左心室重构对心肌梗死患者左心功能及心律失常的发生有一定影响。

The Influence of Left Ventricular Remodeling on Left Ventricular Function and Cardiac Arrhythmia in Myocardial Infarction Patients

Objective:To observe the influence of left ventricular remodeling on left ventricular function and cardiac arrhythmia inmyocardial infarction patients.Methods: Left ventricular function were detected using acoustic quantification (AQ)technology,and occurrence of cardiac arrhythmia were recorded by 24 hours dynamic e feet rocard iogram (DCG ).Results:In left ventricular remodeling group,the left ventricular systolic and diastolic function were significantly lowerthan that in non-left ventricular remodeling group,which there was only diastolic dysfunction. The incidence of cardiac arrhythmia(especially the ventricular arrhythmia and conduction block)in left ventricular remodeling group were significantlyhigher than that of non-left ventricular remodeling group.Conclusion:Left ventricular remodeling had relation ship with left ventricular function and cardiac arrhythmia in myocardial infarction patients.