Clinical Value of Left Atrial Appendage Flow for Prediction of Successful Catheter Ablation for Persistent Atrial Fibrillation
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Persistent Atrial Fibrillation
- Sponsor
- Clinique Pasteur
- Enrollment
- 40
- Locations
- 1
- Primary Endpoint
- termination of persistent AF by catheter ablation
- Status
- Terminated
- Last Updated
- 15 years ago
Overview
Brief Summary
The purpose of this study was to determine whether left atrial appendage flow velocity, as determined using trans esophageal echocardiography (TEE), predicts the outcome after catheter ablation of persistent Atrial fibrillation( pAF).
Detailed Description
40 PAF patients underwent 3D mapping and ablation. A stepwise approach including circumferential pulmonary vein (PV) isolation, continuous complex-fractionated electrogram (CFE) ablation and linear ablation was performed by the same operator. The procedural end point was termination of persistent AF by catheter ablation, either by conversion directly to sinus rhythm or to atrial tachycardia. Left atrial appendage (LAA) peak flow velocities were measured with transesophageal echography and averaged within each RR interval of 10 consecutive cardiac cycles.
Investigators
Eligibility Criteria
Inclusion Criteria
- •First-time radiofrequency catheter ablation for pAF. pAF was defined as continuous AF lasting longer than 1 month, resistant to either electrical or pharmacological cardioversion.
- •Informed consent
Exclusion Criteria
- •Severe valvular disease requiring surgery
- •Valvular prosthesis
- •Known severe coronary artery disease
- •Atrial and/or ventricular thrombosis
- •New York Heart Association functional class III to IV
- •Cerebrovascular disease
- •Pulmonary embolism
- •Latent or manifest hyperthyroidism
Outcomes
Primary Outcomes
termination of persistent AF by catheter ablation
Secondary Outcomes
- Recurrences of AF were therefore determined from holter monitoring at 3 and 6 months or 12 leads ECG in care of symptomatic palpitation with clinical interview.