Yamada Takumi, Doppalapudi Harish, McElderry H Thomas, Kay G Neal
Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, Alabama 5294-0019, USA.
Pacing Clin Electrophysiol. 2012 Jan;35(1):e13-6. doi: 10.1111/j.1540-8159.2010.02863.x. Epub 2010 Aug 17.
A 62-year-old man with severe coronary artery disease and a left ventricular aneurysm underwent catheter ablation of ventricular tachycardia (VT) with right bundle branch block QRS morphology. Endocardial bipolar voltage mapping with standard threshold settings demonstrated no low-voltage areas within the aneurysm. Catheter ablation of the epicardial surface of the aneurysm eliminated the VT. Endocardial bipolar voltage mapping with any other settings could not predict the site of the epicardial arrhythmogenic substrate whereas endocardial unipolar voltage mapping could. Endocardial unipolar voltage mapping may be helpful for predicting epicardial arrhythmogenic substrates.
一名患有严重冠状动脉疾病和左心室室壁瘤的62岁男性接受了具有右束支传导阻滞QRS形态的室性心动过速（VT）导管消融术。采用标准阈值设置进行的心内膜双极电压标测显示，室壁瘤内无低电压区域。对室壁瘤的心外膜表面进行导管消融消除了室性心动过速。采用任何其他设置的心内膜双极电压标测均无法预测心外膜致心律失常基质的部位，而心内膜单极电压标测则可以。心内膜单极电压标测可能有助于预测心外膜致心律失常基质。
