Pleomorphic Ventricular Tachycardias in Nonischemic Cardiomyopathy

Babak Nazer, Henry H. Hsia

Research output: Contribution to journalReview articlepeer-review

1 Scopus citations


Compared to patients with prior myocardial infarction, mapping and ablation of ventricular tachycardia (VT) in nonischemic cardiomyopathy (NICM) patients represents a unique challenge, often with non-endocardial myocardial substrate, multiple VT morphologies, and higher incidence of arrhythmia recurrence post-ablation. Multi-modality imaging and detailed electroanatomic mapping demonstrated two predominant regional scar distributions: basal inferolateral and basal anteroseptal locations. Among the latter group, patients with predominantly septal scar pose a particularly difficult subset. Careful and systemic mapping is required to define the VT substrate. Aggressive ablations are often required from both sides of the septum to achieve arrhythmia control.

Original languageEnglish (US)
Pages (from-to)131-137
Number of pages7
JournalCardiac Electrophysiology Clinics
Issue number1
StatePublished - Mar 1 2016


  • Catheter ablation
  • Mapping
  • Myocardial substrate
  • Nonischemic cardiomyopathy
  • Ventricular tachycardia

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)


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