Does radiofrequency catheter ablation guided by complex fractionated atrial electrograms improve short-term efficacy in patients with chronic atrial fibrillation?
Radiofrequency ablation guided by complex fractionated atrial electrograms offers modest short-term efficacy for chronic AF, with over 40% of patients needing a repeat procedure.
Modest short-term efficacy is achievable with radiofrequency ablation of chronic AF guided by complex fractionated atrial electrograms, but only after a second ablation procedure in > 40% of patients. Rapid activity in the pulmonary veins and multiple macroreentrant circuits are common mechanisms of recurrent atrial arrhythmias.
Oral et al. (Tue,) studied this question.
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