Endocavitary structures in the outflow tract: Anatomy and electrophysiology of the Conus Papillary Muscles

Jo Jo Hai, Christopher V. Desimone, Vaibhav R. Vaidya, Samuel J Asirvatham

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Ablation and Mapping of the Conus Papillary Muscle Catheter ablation is an increasingly used and successful treatment choice for right ventricular outflow tract (RVOT) arrhythmias. While the role of endocavitary structures and the regional morphology of the ventricular inflow tract and the right atrium as a cause for difficulty with successful ablation are well described, similar issues within the RVOT are not well understood. It is also not commonly appreciated that one of the papillary muscles is located within the proximal RVOT. We report 3 patients in which ventricular arrhythmia was targeted and ablated in the conus papillary muscle. The anatomic features, potential role of the fascicular conduction system, and unique challenges with mapping arrhythmia arising from this structure are discussed.

Original languageEnglish (US)
Pages (from-to)94-98
Number of pages5
JournalJournal of Cardiovascular Electrophysiology
Volume25
Issue number1
DOIs
StatePublished - 2014

Fingerprint

Papillary Muscles
Electrophysiology
Cardiac Arrhythmias
Anatomy
Catheter Ablation
Heart Atria
Therapeutics

Keywords

  • conus papillary muscle
  • endocavitary structures
  • Lancisi bundle
  • premature ventricular complex
  • Purkinje fiber
  • right ventricular outflow tract
  • ventricular fibrillation
  • ventricular tachycardia

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)

Cite this

Endocavitary structures in the outflow tract : Anatomy and electrophysiology of the Conus Papillary Muscles. / Hai, Jo Jo; Desimone, Christopher V.; Vaidya, Vaibhav R.; Asirvatham, Samuel J.

In: Journal of Cardiovascular Electrophysiology, Vol. 25, No. 1, 2014, p. 94-98.

Research output: Contribution to journalArticle

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