经心大静脉消融治疗左心室summit区室性期前收缩1例

Premature ventricular contraction originating from left ventricular summit was ablated within great cardiac vein:a case report

1病例资料 患者,男,39岁,反复心悸1个月,动态心电图记录到室性期前收缩（PVCs）共计35 161次/24h,心脏超声提示房间隔膨胀瘤（基底42mm,深度14mm）,余辅助检查未见明显异常。术中频发PVCs（图1a）,体表心电图需考虑左室流出道（LVOT）起源。在Carto 3标测系统引导下行右室流出道（RVOT）激动标测无明显领先。

In this paper,apatient with premature ventricular contraction was considered that the origin was left ventricular outflow tract or left ventricular summit.The target was not detected in the left ventricular outflow tract.The ideal target was recorded to thegreat cardiac vein on the epicardial surface,and the ablation effect was good.The arrhythmia may be mapped and ablated within the great cardiac vein on the epicardial surface,which is a safe and effective method.