Arrhythmias & electrophysiology
Visualization and mapping of the right phrenic nerve by intracardiac echocardiography during atrial fibrillation ablation
Authors' conclusion
RPN can be visualized by ICE in most patients, thus providing a novel approach for the real-time detection of RPN during AF ablation.
Study context
- Population
- Patients undergoing atrial fibrillation (AF) ablation
- Participants
- 38 patients
- Outcome
- Feasibility of real-time visualization and mapping of the right phrenic nerve (RPN) by intracardiac echocardiography (ICE)
Main finding
As reported in the abstract
Right phrenic nerve (RPN) visualized by intracardiac echocardiography (ICE)
92%
Minimum distance of RPN from superior vena cava (SVC) (mm)
1.0 ± 0.4
Minimum distance of RPN from right superior pulmonary vein (mm)
14.1 ± 7.3
Correlation of RPN capture threshold with distance from SVC (Spearman's coefficient)
0.728, < 0.001
Safety
RPN injury with ICE-guided SVC isolation
- Patients with RPN injury
- 0
Original publication
Visualization and mapping of the right phrenic nerve by intracardiac echocardiography during atrial fibrillation ablation. Europace. Published 1 March 2023. doi:10. 1093/ europace/ euad012
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