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 language | English (US) |
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Pages (from-to) | 94-98 |
Number of pages | 5 |
Journal | Journal of cardiovascular electrophysiology |
Volume | 25 |
Issue number | 1 |
DOIs | |
State | Published - 2014 |
Keywords
- Lancisi bundle
- Purkinje fiber
- conus papillary muscle
- endocavitary structures
- premature ventricular complex
- right ventricular outflow tract
- ventricular fibrillation
- ventricular tachycardia
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
- Physiology (medical)