AV nodal reentrant tachycardia causing inappropriate ICD shocks in a patient with arrhythmogenic RV dysplasia

Subramanya Prasad, Jayasree Pillarisetti, Subbareddy Vanga, Dhanunjaya Lakkireddy

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We report a patient with an implantable cardioverter defibrillator (ICD) for arrhythmogenic right ventricular dysplasia (ARVD) who received inappropriate shocks for atrioventricular node reentry tachycardia (AVRNT). Patient had multiple shocks for tachycardia with EGM characteristics of very short VA interval and CL of 300 msec. An electrophysiologic (EP) study reproducibly induced typical AVNRT with similar features. The slow AV nodal pathway ablation resolved the ICD shocks. Despite increasingly sophisticated discrimination algorithms available in modern ICDs, the ability to differentiate SVT from VT can be challenging. Our patient received inappropriate shocks for AVNRT. When device interrogation alone is not conclusive, an EP study may be necessary to determine the appropriate therapeutic course.

Original languageEnglish (US)
Pages (from-to)60-63
Number of pages4
JournalIndian Pacing and Electrophysiology Journal
Volume9
Issue number1
StatePublished - Jul 13 2009
Externally publishedYes

Keywords

  • Arrhythmogenic right ventricular dysplasia
  • Implantable cardioverter defibrillator
  • Inappropriate shocks

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)

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