解放军医学院学报2018，Vol.39Issue(1)：42-44,3.DOI:10.3969/j.issn.2095-5227.2018.01.012
胸前导联鉴别流出道起源的特发性室性期前收缩的临床分析
Value of precordial leads in identificating origins of outflow tract idiopathic premature ventricular contractions
展庆垒 1李健 1林琨 1时向民 1单兆亮1
作者信息
- 1. 解放军总医院心血管内科, 北京 100853
- 折叠
摘要
Abstract
Objective To determine the value of precordial leads for differentiating the origins of outflow tract idiopathic premature ventricular contractions arrhythmias. Methods The features of electrocardiogram in 112 patients with ventricular premature beat originated from ventricular outflow tract (RVOT, n=82; LVOT, n=30) who had undergone successful catheter ablation from September 2013 to September 2016 in our hospital were analyzed. The R-wave transition in precordial leads and V2S/V3R index were recorded and their diagnostic accuracies for the origins were calculated. Results Of the 112 patients, 40 cases had the R/S transition after leads V4 (including V4), and the specificity of the R/S transition after lead V3 for predicting the origin from LVOT was 48.8％, while the sensitivity was 100％. The other 72 patients were further studied by V2S/V3R index. When the V2S/V3R index was under1.5, it predicted LVOT origin with sensitivity of 92.9％ and specificity of 93.2％. Conclusion The R-wave transition in precordial leads and V2S/V3R index can differentiate the origins of outflow tract ventricular arrhythmias, which has a great value for guiding catheter ablation.关键词
特发性室性心律失常/心室流出道/胸前导联移行/导管消融Key words
idiopathic ventricular arrhythmias/ventricular outflow tract/R-wave transition in precordial leads/catheter ablation分类
医药卫生引用本文复制引用
展庆垒,李健,林琨,时向民,单兆亮..胸前导联鉴别流出道起源的特发性室性期前收缩的临床分析[J].解放军医学院学报,2018,39(1):42-44,3.
