Purkinje-related arrhythmias part ii: polymorphic ventricular tachycardia and ventricular fibrillation.

摘要: There has been growing evidence that the Purkinje network plays a pivotal role in both initiation and perpetuation of ventricular fibrillation (VF). A triggering premature beat (VPB) with short-coupling interval could arise from either right or left system patients polymorphic tachycardia (VT) VF, can be suppressed by catheter ablation trigger. focal breakdown "gating mechanism" at resulting short-circuiting transmission across gate distal might predispose to reentrant circuits VT/VF. Many investigators also reported successful Purkinje-related VF an acute remote myocardial infarction. The same approach good short-term results small number other heart diseases (i.e., amyloidosis, chronic myocarditis, nonischemic cardiomyopathy). Catheter VPBs used as electrical bailout therapy storm.