This observational study aims to evaluate the effectiveness and safety of a circular-shaped pulsed field ablation (PFA) catheter for CTI ablation under the guidance of intracardiac echocardiography (ICE). The main question it aims to answer is: Is the circular-shaped PFA catheter an effective and safe tool for achieving acute success for CTI ablation? Patients undergoing CTI ablation with a circular-shaped PFA catheter will be prospectively enrolled.
Study Type
OBSERVATIONAL
Enrollment
150
Cavotricuspid isthmus ablation with a circular-shaped pulsed field ablation catheter guided by intracardiac echocardiography
Beijing Anzhen Hospital
Beijing, China
RECRUITINGAcute Success of CTI Block
Bidirectional block was assessed immediately after the last ablation application and re-confirmed at the end of the 20-minute observation period.
Time frame: Within the ablation procedure
CTI Procedural Time
Time frame: Within the ablation procedure
Total PF Application Time
Time frame: Within the ablation procedure
Number of PFA Applications
Time frame: Within the ablation procedure
Procedure-related Complications
Including vascular complications, cardiac tamponade, thromboembolic events, conduction system injury, or other adverse events judged procedure-related.
Time frame: Within 30 days after the ablation procedure
Freedom from Any Atrial Arrhythmia
Arrhythmia recurrence is defined as any documented atrial tachyarrhythmia (atrial flutter, atrial fibrillation, or atrial tachycardia) lasting ≥30 seconds, confirmed by ECG or ambulatory monitoring.
Time frame: 12 months
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