Successful targeted ablation of the pathway potential in the noncoronary cusp of the aortic valve in an infant with incessant orthodromic atrioventricular reentrant tachycardia

Ramprakash Balasundaram, Hygriv Rao, Samuel J. Asirvatham, Calambur Narasimhan

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

Targeted Ablation of Pathway Potential in the Noncoronary Cusp. A 4-month-old infant presented with incessant SVT and severe failure to thrive. At EP study, orthodromic-reciprocating tachycardia using an anteroseptal accessory pathway was identified. Detailed mapping on the right atrial septum failed to disclose a distinctly early site of atrial activation or a near-field pathway potential. Mapping in the noncoronary cusp of the aortic valve identified a discrete pathway potential that was successfully targeted for ablation. At 12-month follow-up after the procedure, there had been no recurrence of tachycardia. Conclusion: Myocardial fibers above the aortic valve cusps may constitute the atrioventricular bypass connection and can be identified and targeted for successful ablation even in infants.

Original languageEnglish (US)
Pages (from-to)216-220
Number of pages5
JournalJournal of cardiovascular electrophysiology
Volume20
Issue number2
DOIs
StatePublished - Feb 1 2009

Keywords

  • Accessory pathway
  • Aortic valve
  • Atrioventricular reentrant tachycardia
  • Electrophysiology
  • Radiofrequency ablation
  • Supraventricular tachycardia

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)

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