Definition of the reentry circuit with demonstration of a low frequency diastolic potential in a patient with verapamil-sensitive idiopathic left ventricular tachycardia

Ming Shien Wen, San Jou Yeh, Delon Wu*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

6 Scopus citations

Abstract

A low frequency slow potential preceding the Purkinje spike was recorded at the midseptum during tachycardia in a 69-year-old man with verapamil-sensitive left ventricular tachycardia. This potential was characteristically absent during sinus rhythm before radiofrequency ablation, but became evident following the QRS complex after successful ablation at the tachycardia exit site. Induction of tachycardia with programmed stimulation was dependent on emergence of this slow potential. Decremental conduction was noted between the QRS complex and the slow potential. Further energy application at a site proximal to where the slow potential was initially recorded totally elimicated the slow potential.

Original languageEnglish
Pages (from-to)357-362
Number of pages6
JournalJournal of Electrocardiology
Volume35
Issue number4
DOIs
StatePublished - 10 2002

Keywords

  • Ventricular tachycardia reentry verapamil

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