First clinical experience using a novel high-resolution electroanatomical mapping system for left atrial ablation
Christian Sohns1, Ardan M Saguner2, Christine Lemes2
1Department of Cardiology, Asklepios Klinik St. Georg, Lohmühlenstraße 5, 20099, Hamburg, Germany. c.sohns@asklepios.com.
Summary
This study shows the Rhythmia system is a feasible tool for ultra-high-resolution electroanatomical mapping during atrial fibrillation ablation. Pulmonary vein isolation was achieved in all patients, demonstrating the system
Area of Science:
- Cardiology
- Electrophysiology
- Medical Technology
Background:
- The Rhythmia mapping system offers rapid, ultra-high-resolution electroanatomical mapping.
- Evaluating novel systems is crucial for advancing cardiac ablation procedures.
Purpose of the Study:
- To assess the feasibility, acute efficacy, and safety of the Rhythmia system for atrial fibrillation (AF) and left atrial tachycardia (AT) ablation.
- To determine the system's performance in routine clinical conditions.
Main Methods:
- 35 consecutive patients underwent catheter ablation for AF/AT using Rhythmia and the Orion mini-basket catheter.
- Radiofrequency (RF) energy was used for pulmonary vein isolation (PVI) and linear lesions.
- PVI and conduction block were confirmed using the mini-basket catheter and pacing maneuvers.
Main Results:
- Pulmonary vein isolation was achieved in all patients.
- Average procedure time was 110.3 minutes, with fast acquisition mapping (FAM) time of 19 minutes.
- Complications included pericardial tamponade (1), air embolism (1), and groin hematoma (2).
Conclusions:
- The Rhythmia system demonstrates feasibility for left atrial ablation procedures.
- Routine use of this ultra-high-resolution mapping system instills a high level of confidence.
- Further data is required for definitive conclusions on the system's long-term efficacy and safety.
