Okada Taro, Yamada Takumi, Murakami Yoshimasa, Yoshida Naoki, Ninomiya Yuuichi, Toyama Junji
Division of Cardiology, Aichi Prefectural Cardiovascular and Respiratory Center, Ichinomiya, Japan.
Pacing Clin Electrophysiol. 2007 Mar;30(3):440-3. doi: 10.1111/j.1540-8159.2007.00689.x.
We report a case of polymorphic ventricular tachycardia and ventricular fibrillation (PVT/VF) storm associated with ischemic cardiomyopathy (ICM). The electrocardiogram (ECG) monitor revealed frequent premature ventricular contractions (PVCs) initiated PVT/VF. Electroanatomic mapping revealed the plausible origins of PVCs were located in the scar border zone at the posterior septum of the left ventricle. Purkinje-like potentials (PLPs) always preceded PVCs and a decremental property for the PLPs and infarcted myocardium junction was observed. Ablation at these sites eliminated both PVCs and PVT/VF.
我们报告一例与缺血性心肌病（ICM）相关的多形性室性心动过速和心室颤动（PVT/VF）风暴。心电图（ECG）监测显示频发室性早搏（PVC）引发了PVT/VF。电解剖标测显示PVC的可能起源位于左心室后间隔的瘢痕边界区。类浦肯野电位（PLP）总是先于PVC出现，并且观察到PLP与梗死心肌交界处具有递减特性。在这些部位进行消融消除了PVC以及PVT/VF。
