V1导联呈qS型提示流出道室性早搏起源于冠状动脉窦  

Unique electrocardiogram pattern in lead V~ of outflow tract premature ventricular contract originating between right and left coronary cusp

作　　者：贾玉和[1] 楚建民[1] 王靖[1] 马洪山[2] 马坚[1] 方丕华[1] 姚焰[1] 张奎俊[1] 华伟[1] 张澍[1] 

机构地区：[1]中国医学科学院心血管病研究所北京协和医学院阜外心血管病医院心律失常中心,100037 [2]山西省大同市第三人民医院心内科

出　　处：《中华心律失常学杂志》2011年第1期19-22,共4页Chinese Journal of Cardiac Arrhythmias

摘　　要：目的报道经导管在左、右冠状动脉窦之间射频消融成功的流出道室性早搏（室早）的一种独特的心电图特征。方法截取一段时间内在我中心行室早、室性心动过速（室速）射频消融成功的连续性病例168例，回顾性分析其心电图特征与相应成功靶点之间的关系。结果全部4例在主动脉根部左、右冠状动脉窦之间消融成功的病例，其室早心电图V1导联形态高度一致，均呈qs型。因此仅就本组资料而言，若以V1导联呈qs型来预测室早消融位点位于左、右冠状动脉窦之间，则其敏感度和特异性均达100％。结论对V1导联呈现独特qs型的流出道室早的射频消融，应首选在主动脉根部左、右冠状动脉窦之间标测。Objective This study initially reports a unique electrocardiogram（ ECG） pattern in lead VI of premature ventricular contract（PVC） originating between right coronary cusp（RCC） and left coronary cusp （LCC）. Methods One hundred and sixty-eight cases with outflow tract PVCs （OT-PVC） were conducted cath- eter ablation in our center, successful ablation targets and their corresponding clinical arrhythmia ECGs were an- alyzed retrospectively. Results In 4 cases the successful ablation targets located between RCC and LCC of aor- tic root and shared a common unique qS pattern in lead V1. The predictive value of qS pattern in lead V1 could have 100% sensitivity and specificity respectively, in OT-PVC originating between RCC and LCC. Conclusion OT-PVC with unique qS pattern in lead V1 may indicate the successful ablation targets located between RCC and LCC of aortic root.

关 键 词：流出道室性早搏 射频导管消融 冠状动脉窦 

分 类 号：R541.7[医药卫生—心血管疾病]