Successful catheter ablation of a ventricular tachycardia storm originating from the left ventricular posterior papillary muscle involved with a remote myocardial infarction

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

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

A 61-year-old man with a remote posterior myocardial infarction underwent electrophysiological testing for a ventricular tachycardia (VT) storm. Repeated cardioversions terminated the VT with immediate resumption after one sinus beat. Pacing neither terminated the VT nor demonstrated transient entrainment. Echocardiographically guided electroanatomic mapping revealed a centrifugal activation from the septal mid-apical region of the left ventricle on the septal portion of the posterior papillary muscle where a high frequency potential was observed within the local ventricular electrogram. Irrigated radiofrequency current at this site eliminated the VT. This case suggested that papillary muscles may be a target for catheter ablation of electrical storms after myocardial infarctions.

Original languageEnglish (US)
Pages (from-to)143-145
Number of pages3
JournalJournal of Interventional Cardiac Electrophysiology
Volume24
Issue number2
DOIs
StatePublished - Mar 2009
Externally publishedYes

Keywords

  • Electrical storm
  • Myocardial infarction
  • Posterior papillary muscle
  • Radiofrequency catheter ablation
  • Ventricular tachycardia

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