Epicardial ablation of ventricular tachycardia: A review

Rhanderson Cardoso, Arash Aryana, Sheldon M. Singh, Harikrishna Tandri, Andre D'Avila

Research output: Contribution to journalReview articlepeer-review


For over 3 decades, it has been known that reentry circuits for ventricular tachycardia (VT) are not limited to the subendocardial myocardium. Rather, intramural or subepicardial substrates may also give rise to VT, particularly in those with non-ischemic cardiomyopathy. Percutaneous epicardial mapping and ablation has been successfully introduced for the treatment of such subepicardial VT. Herein, we review the indications for epicardial ablation and the identification of epicardial VT by electrocardiographic and imaging modalities. We also discuss the optimal technique for epicardial access and the implications of epicardial fat which has the potential to mimic scar, decreasing the specificity of electrogram morphology and impeding energy delivery to the tissue. Finally, we also report on possible complications of the procedure and strategies to mitigate adverse events.

Original languageEnglish (US)
Pages (from-to)787-791
Number of pages5
JournalKorean Circulation Journal
Issue number9
StatePublished - Sep 2018


  • Catheter ablation
  • Epicardial mapping
  • Ventricular tachycardia

ASJC Scopus subject areas

  • Internal Medicine
  • Cardiology and Cardiovascular Medicine


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