Epicardial macroreentrant ventricular tachycardia associated with a left ventricular aneurysm

Takumi Yamada, Harish Doppalapudi, H. Thomas McElderry, G. Neal Kay

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

A 62-year-old man with severe coronary artery disease and a left ventricular aneurysm underwent catheter ablation of ventricular tachycardia (VT) with right bundle branch block QRS morphology. Endocardial bipolar voltage mapping with standard threshold settings demonstrated no low-voltage areas within the aneurysm. Catheter ablation of the epicardial surface of the aneurysm eliminated the VT. Endocardial bipolar voltage mapping with any other settings could not predict the site of the epicardial arrhythmogenic substrate whereas endocardial unipolar voltage mapping could. Endocardial unipolar voltage mapping may be helpful for predicting epicardial arrhythmogenic substrates.

Original languageEnglish (US)
Pages (from-to)e13-e16
JournalPACE - Pacing and Clinical Electrophysiology
Volume35
Issue number1
DOIs
StatePublished - Jan 2012
Externally publishedYes

Keywords

  • epicardial
  • left ventricular aneurysm
  • radiofrequency catheter ablation
  • ventricular tachycardia
  • voltage

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