陈旧性心肌梗死患者左心功能和窦性心律震荡现象研究  

Evaluation of left ventricular function and heart rate turbulence in patients with old myocardial infarction

作　　者：王文广[1] 刘淑华[1] 吕春艳[2] 

机构地区：[1]河北医科大学附属秦皇岛第一医院心内科,河北省秦皇岛市066000 [2]河北医科大学附属秦皇岛第一医院消化内科,河北省秦皇岛市066000

出　　处：《实用老年医学》2013年第2期123-124,共2页Practical Geriatrics

摘　　要：目的探讨陈旧性心肌梗死患者左心功能和室性早搏后的窦性心律震荡(HRT)现象之间的相关性。方法利用二维超声心动图对陈旧性心肌梗死患者进行心功能评价,测量左室射血分数(left ventricular e-jection fraction,LVEF),依据LVEF分为心力衰竭组和非心力衰竭组,利用24h Holter检查,分别计算2组各自HRT的初始值(TO)、HRT的斜率(TS)。结果与对照组比较,陈旧性心肌梗死患者TO值明显增高,TS值显著降低(P<0.01)。与陈旧性心肌梗死非心力衰竭患者比较,心力衰竭患者TS值降低(P<0.01)。结论陈旧性心肌梗死心力衰竭患者窦性心律震荡减弱现象较无心力衰竭患者更明显。Objective To explore the relationship between left ventricular function and heart rate turbulence (HRT) in patients with old myocardial infarction(OMI). Methods Left ventricular function was assessed by echocardiography, and the value of left ventricular ejection fraction was recorded. HRT slope(TS) and HRT onset(TO) were measured by the original definitions using digitized Holter ECG recordings. Results The value of TO was significantly higher and the va-lue of TS was significantly lower in patients with OMI than that in control patients (P<0.01). The value of TS was significantly lower in the patients with OMI complicated with heart failure than that of the patients with OMI without heart failure(P<0.01). Conclusions HRT is a powerful prognostic marker to heart failure in patients with OMI.

关 键 词：窦性心律震荡 陈旧性心肌梗死 心力衰竭 左室射血分数 

分 类 号：R542.22[医药卫生—心血管疾病]