June 1, 1999Journal of Cardiovascular Electrophysiology
Intraoperative Radiofrequency Ablation of Chronic Atrial Fibrillation: A Left Atrial Curative Approach by Elimination of Anatomic “Anchor” Reentrant Circuits
Key result
Intraoperative radiofrequency ablation targeting left atrial anatomic anchor reentrant circuits successfully prevented chronic atrial fibrillation in 82% (9 of 11) of treated patients.
Why the study?
Does intraoperative radiofrequency ablation successfully eliminate chronic atrial fibrillation in patients undergoing valve surgery?
Population
12 patients with an indication for valve surgery and chronic atrial fibrillation
Design
Case_series
Follow-up
11 +/- 6 months
Authors
Discussion
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Member takes
Implication
Supports further investigation of targeted ablation during valve surgery; should not yet change practice pending randomized evidence.
Study Design
Type
Observational (n=12)
Structured PICO
Does intraoperative radiofrequency ablation successfully eliminate chronic atrial fibrillation in patients undergoing valve surgery?
P
Population
12 patients with an indication for valve surgery and chronic atrial fibrillation
I
Intervention
Intraoperative radiofrequency (RF) ablation using a right atrial-transseptal approach to place contiguous endocardial lesion lines between the mitral annulus and pulmonary veins with a specially designed probe
O
Outcome
Successful ablation of chronic AF (maintenance of stable sinus rhythm, intermittent pacemaker rhythm, or sinus rhythm with intermittent atypical atrial flutter)surrogate
Intraoperative radiofrequency ablation of left atrial reentrant circuits during valve surgery is feasible and successfully eliminated chronic atrial fibrillation in over 80% of treated patients.
Cite This Study
Kottkamp et al. (1999) conducted an observational in Chronic atrial fibrillation (n=12). Intraoperative radiofrequency ablation was evaluated on Successful ablation of chronic atrial fibrillation. Intraoperative radiofrequency ablation targeting left atrial anatomic anchor reentrant circuits successfully prevented chronic atrial fibrillation in 82% (9 of 11) of treated patients.