Abstract：
The epicardial outflow tract can be a site of origin of idiopathic ventricular arrhythmias. These arrhythmias are most commonly perivalvular and can be targeted from within the coronary venous system or from other adjacent structures, such as the right ventricular and left ventricular outflow tracts or the coronary cusp region. The authors report a case of an epicardial idiopathic outflow tract premature ventricular contraction originating from the midseptal epicardial left ventricle. In this case, direct epicardial access was crucial to identify early local activation and achieve successful catheter ablation.
摘要：
心外膜流出道可能是特发性室性心律失常的起源部位。这些心律失常最常见的是瓣膜周围，可以从冠状静脉系统或其他邻近结构中靶向。如右心室和左心室流出道或冠状尖区。作者报告了一例源自中间隔心外膜左心室的心外膜特发性流出道室性早搏。在这种情况下,心外膜直接入路对于识别早期局部激活和导管消融成功至关重要.
