Coronary Venous Mapping and Catheter Ablation for Ventricular Arrhythmias

Methodist Debakey Cardiovasc J. 2021 Apr 5;17(1):13-18. doi: 10.14797/HUZR1007. Epub 2021 Mar 25.


Catheter ablation is an effective treatment method for ventricular arrhythmias (VAs). These arrhythmias can often be mapped and targeted with ablation from the left and right ventricular endocardium. However, in some situations the VA site of origin or substrate may be intramural or epicardial in nature. In these cases, the coronary venous system (CVS) provides an effective vantage point for mapping and ablation. This review highlights situations in which CVS mapping may be helpful and discusses techniques for CVS mapping and ablation.

Keywords: PVC; ablation; coronary venous mapping; ventricular tachycardia.

Publication types

  • Review

MeSH terms

  • Action Potentials
  • Catheter Ablation* / adverse effects
  • Coronary Angiography
  • Coronary Vessels / diagnostic imaging
  • Coronary Vessels / physiopathology
  • Coronary Vessels / surgery*
  • Electrocardiography
  • Electrophysiologic Techniques, Cardiac
  • Heart Rate*
  • Humans
  • Phlebography
  • Predictive Value of Tests
  • Tachycardia, Ventricular / diagnosis
  • Tachycardia, Ventricular / physiopathology
  • Tachycardia, Ventricular / surgery*
  • Treatment Outcome
  • Ventricular Fibrillation / diagnosis
  • Ventricular Fibrillation / physiopathology
  • Ventricular Fibrillation / surgery*