Cardiovascular Division, University of Minnesota, 420 Delaware Street SE, MMC 508, Minneapolis, MN 55455, USA.
Card Electrophysiol Clin. 2022 Dec;14(4):621-631. doi: 10.1016/j.ccep.2022.07.008.
Idiopathic ventricular arrhythmias (VAs) most commonly originate from the ventricular outflow tracts. Because the anatomy of this region is complex and some of those VA origins are intramural and epicardial, it may sometimes be difficult to locate the site of the VA origin. Meticulous mapping in multiple different locations such as the right and left ventricular outflow tracts, endocardial and epicardial sites, and above and below the aortic and pulmonic valves may be required to achieve successful catheter ablation of those VAs. Special ablation techniques may be considered to improve the outcome of catheter ablation of intramural and epicardial VAs.
特发性室性心律失常（VAs）最常起源于心室流出道。由于该区域的解剖结构复杂，并且一些 VA 起源于心外膜和心内膜，因此有时可能难以确定 VA 起源的部位。需要在多个不同位置（如左右心室流出道、心内膜和心外膜部位以及主动脉瓣和肺动脉瓣上方和下方）进行细致的映射，以实现这些 VAs 的成功导管消融。可能需要考虑特殊的消融技术来提高心内膜和心外膜 VA 导管消融的效果。
