Related Experiment Video

Updated: May 22, 2026

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction
06:57

Ablation of Ischemic Ventricular Tachycardia Using a Multipolar Catheter and 3-dimensional Mapping System for High-density Electro-anatomical Reconstruction

Published on: January 31, 2019

Premature Ventricular Complexes With 2 QRS Morphologies: Cardiac Crux Insights and an Endocardial Ablation Strategy

Thai Duy Vo1, Minh Nhut Nguyen2, Chin-Yu Lin3

  • 1Division of Cardiac Electrophysiology, Cardiovascular Center, Taipei Veterans General Hospital, Taipei City, Taiwan; Department of Arrhythmology, Cho Ray Hospital, Ho Chi Minh City, Vietnam.

JACC. Case Reports
|May 21, 2026
PubMed

Insights

Idiopathic crux premature ventricular complexes (PVCs) with dual QRS morphologies can originate from a single focus. Successful ablation requires bilateral endocardial mapping and lesion enhancement, potentially avoiding epicardial access.

Area of Science:

  • Cardiology
  • Electrophysiology
  • Cardiac Ablation

Background:

  • Premature ventricular complexes (PVCs) originating from the cardiac crux present challenges due to intramural or epicardial substrates.
  • Localization and ablation of crux PVCs are often complicated by substrate location.
Abstract

Keywords:
cardiac cruxcatheter ablationelectroanatomical mappingpremature ventricular complexesventricular arrhythmia

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