T波电交替预测扩张性心肌病患者恶性室性心律失常的作用  

T-wave Alternans (TWA) Detection to Predict Malignant Ventricular Arrhythmia in Patients with Dilated Cardiomyopathy(DCM).

作　　者：卢海燕[1] 

机构地区：[1]丽水市中心医院,浙江丽水323000

出　　处：《心脑血管病防治》2010年第4期263-264,共2页CARDIO-CEREBROVASCULAR DISEASE PREVENTION AND TREATMENT

摘　　要：Objective To explore TWA detection method in electrocardiogram records based on dynamic time-domain method and TWA value for predicting malignant ventricular arrhythmia in patients with DCM.Methods This study included 86 hospitalized patients with DCM during 2006～2008 at Lishui City Central Hospital.According to the type of ventricular arrhythmia,they were divided into malignant ventricular arrhythmia group(28 cases) and non-malignant ventricular arrhythmia group(58 cases).Using time-domain measurement of TWA index,the sensitivity,specificity for TWA index predicting malignant ventricular arrhythmias were analyzed.Results TWA in non-malignant ventricular arrhythmia group and malignant ventricular arrhythmias group was significant difference(P<0.01).When we used Talt ≥7.6μV to predict malignant ventricular arrhythmias in patients with DCM,the sensitivity was 86%,specificity was 83%,positive predictive value was 71%,negative predictive value was 92%.Conclusions Time-domain measurement of TWA in patients with DCM for malignant ventricular arrhythmia has a predictive value.Objective To explore TWA detection method in electrocardiogram records based on dynamic time-domain method and TWA value for predicting malignant ventricular arrhythmia in patients with DCM.Methods This study included 86 hospitalized patients with DCM during 2006～2008 at Lishui City Central Hospital.According to the type of ventricular arrhythmia,they were divided into malignant ventricular arrhythmia group（28 cases） and non-malignant ventricular arrhythmia group（58 cases）.Using time-domain measurement of TWA index,the sensitivity,specificity for TWA index predicting malignant ventricular arrhythmias were analyzed.Results TWA in non-malignant ventricular arrhythmia group and malignant ventricular arrhythmias group was significant difference（P〈0.01）.When we used Talt ≥7.6μV to predict malignant ventricular arrhythmias in patients with DCM,the sensitivity was 86%,specificity was 83%,positive predictive value was 71%,negative predictive value was 92%.Conclusions Time-domain measurement of TWA in patients with DCM for malignant ventricular arrhythmia has a predictive value.

关 键 词：恶性室性心律失常 扩张性心肌病 T波电交替 预测价值 尖端扭转型室速 患者 收缩功能障碍 扩张型心肌病 

分 类 号：R542.2[医药卫生—心血管疾病]