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.
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
关键词
流出道室性早搏
射频导管消融
冠状动脉窦
Outflow tract premature ventricular contract
Radiofrequency catheter ablation
Coronary cusps
