充血性心力衰竭患者左室射血分数与心律失常的相关性研究

The relationship between left ventricular function and arrhythmia in congestive heart failure

目的:研究充血性心力衰竭患者左室射血分数与心律失常的关系。方法:用超声心动图及动态心电图检测研究了189例在我院诊断为心力衰竭的患者,根据左室射血分数(LVEF)将患者分为2组,对比2组患者心律失常发生的类型和频率的关系。结果:严重心律失常的发生与LVEF相关,当LVEF≤40%,严重心律失常的发生率明显高于LVEF>40%的患者。结论:心力衰竭患者的左心室收缩功能受损害的程度直接影响着发生心律失常的类型、频率,左心功能受损严重者,严重心律失常的发生率高。

Objective ：To study the relationship between left ventricular function and arrhythmia in congestive heart failure. Methods：One hundred and eighty-nine patients diagnosed with congestive heart failure were studied by echocardiography and twenty-four hours ECG monitor. According to the left ventricular function, the patients were divided into two groups, then to compare the pattern and frequency of arrhythmia of two groups. Results ：The fraction of left ventricular ejection had correlation with the occurrence of obstinate arrhythmia, when LVEF was less than 40%, the occurrence of malignant arrhythmia was higher than that of LVEF〉40%. Conclusion：Left ventricular systolic function is directly related to the pattern and frequency of arrhythmia, when the left ventricular function is damaged severely, the heart rate variability decreased obviously, the frequency of malignant arrhythmia is higher.