A 60-years-old male with remote anterior myocardial infarction (MI) was referred for catheter ablation of electrical storm related to monomorphic ventricular tachycardia (MVT). Radiofrequency applications targeting pre-systolic potentials abolished all clinical MVTs.

Scar-associated Purkinje-related MVT mimicking fascicular VT is a rare mechanism of post-MI MVT. The surviving Purkinje cells within scar border zones, responsible for VF during acute MI, may also generate MVT after scar organization occurring with time or after VF ablation. Identification of this mechanism is useful as ablation of a limited area can rapidly eliminate several MVTs.

一名患有远端前壁心肌梗死 (MI) 的 60 岁男性因与单形室性心动过速 (MVT) 相关的电风暴进行导管消融治疗。针对收缩前电位的射频应用废除了所有临床 MVT。

瘢痕相关浦肯野相关 MVT 模拟分支 VT 是 MI 后 MVT 的罕见机制。瘢痕边界区中存活的浦肯野细胞负责急性 MI 期间的 VF，也可能在随着时间的推移或 VF 消融后瘢痕组织发生后产生 MVT。这种机制的识别是有用的，因为有限区域的消融可以快速消除几个 MVT。