Abstract
Radiofrequency ablation has been associated with changes in autonomic function. In this case, a 52-year-old woman was referred for electrophysiologic study of recurrent supraventricular tachycardia. Typical slow/fast atrioventricular node re-entry tachycardia was induced and confirmed during the study. Radiofrequency ablation of the slow pathway of the atrioventricular node led to sinus arrest, which resolved once ablation was stopped. Given the distance of the ablation site from the sinus node, we inferred that mechanisms other than direct injury to the sinus node were involved. To our knowledge, this is only the 2nd reported finding of sinus arrest during slow-pathway ablation of the atrioventricular node. This case highlights the complex interaction between the autonomic nervous system and the cardiac conduction system. Possible mechanisms include a Bezold-Jarisch reflex and modification of the intrinsic autonomic nervous system.
Original language | English (US) |
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Pages (from-to) | 477-479 |
Number of pages | 3 |
Journal | Texas Heart Institute Journal |
Volume | 36 |
Issue number | 5 |
State | Published - 2009 |
Keywords
- Afferent pathways
- Autonomic nervous system diseases
- Catheter ablation/adverse effects
- Electrophysiology
- Heart conduction system
- Parasympathetic nervous system
- Radiofrequency ablation
- Tachycardia, supraventricular/therapy
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine