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Updated: Feb 10, 2026
28:13
Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
34.2K
Practical Considerations of Mapping Persistent Atrial Fibrillation With Whole-Chamber Basket Catheters
Jacob Laughner1, Shibaji Shome1, Nicholas Child2
1Boston Scientific St. Paul, Minnesota, USA.
JACC. Clinical Electrophysiology
|May 17, 2018
Summary
Basket catheters show limitations in atrial fibrillation mapping due to deployment issues and low-voltage signals. However, some patients exhibit stable electrograms, suggesting potential for high-density mapping in persistent AF.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Devices
Background:
- Panoramic mapping using basket catheters aims to identify atrial fibrillation (AF) sources.
- Clinical effectiveness of basket catheter mapping in AF requires further investigation.
Purpose of the Study:
- Evaluate basket catheter deployment, catheter-tissue contact, and stability of atrial electrograms (aEGMs) in persistent AF patients.
- Assess the feasibility of using basket catheters for AF source identification.
Main Methods:
- Collected data from 25 AF patients undergoing catheter ablation in the STARLIGHT trial.
- Recorded left and right aEGMs using basket catheters during baseline AF, post-ablation, and sinus rhythm.
- Analyzed basket deployment, peak-to-peak voltage, and electrogram stability/organization using time-frequency analysis (TFA).
Main Results:
- Basket catheters exhibited equatorial bunching upon deployment.
- Significant variation in interspline spacing was observed in both atria.
- Approximately one-third of electrodes failed to meet the voltage threshold; electrogram stability was observed in 59% of right atrial and 45% of left atrial baskets.
Conclusions:
- Basket catheter deployment and electrode performance present limitations for AF mapping.
- Despite limitations, electrogram stability and organization were noted in about half of the patients.
- Findings suggest potential for high-density mapping in persistent AF patients with concordant activation patterns.
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