Okishige Kaoru, Kawabata Mihoko, Umayahara Shin, Yamashiro Kei, Gotoh Masakazu, Isobe Mitsuaki, Strickberger S Adam
Cardiovascular Center, Yokohama Red Cross Hospital, Yokohama-city, Japan.
Circ J. 2003 May;67(5):455-60. doi: 10.1253/circj.67.455.
Three-dimensional visualization of cardiac activation has become important for providing further insights into the pathophysiological mechanisms of arrhythmias and to increase the efficacy of catheter ablation. The noncontact mapping system enables a single-beat analysis of the reconstructed geometry of the cardiac chamber. In 8 patients with various kinds of arrhythmias (3 with atrial flutter, 2 with right ventricular outflow tract ventricular tachycardia, 1 with idiopathic left ventricular tachycardia, 1 with atrioventricular nodal reentrant tachycardia and 1 with concealed Wolff-Perkinson-White syndrome), non-contact mapping using an EnSite 3000 system was performed for the guidance of catheter ablation. The optimal sites for successful ablation were detected and all of these arrhythmias were successfully eliminated with the radiofrequency energy applications without any adverse effects. The computerized EnSite 3000 mapping system described here computes accurate isopotential maps that are a useful guide for catheter ablation.
心脏激动的三维可视化对于深入了解心律失常的病理生理机制以及提高导管消融的疗效已变得至关重要。非接触式标测系统能够对心腔重建几何结构进行单搏分析。在8例患有各种心律失常的患者中（3例心房扑动、2例右心室流出道室性心动过速、1例特发性左心室心动过速、1例房室结折返性心动过速和1例隐匿性预激综合征），使用EnSite 3000系统进行非接触式标测以指导导管消融。检测到成功消融的最佳部位，所有这些心律失常均通过射频能量应用成功消除，且无任何不良反应。本文所述的计算机化EnSite 3000标测系统可计算出精确的等电位图，这对导管消融是一个有用的指导。
