Useful clinical features for the selection of ideal patients with atrial fibrillation for mapping and catheter ablation.

Objective: To identify useful clinical characteristics for selecting patients eligible for mapping and ablation of atrial fibrillation.

Methods: We studied 9 patients with atrial fibrillation, without structural heart disease, associated with: 1) antiarrhythmic drugs, 2) symptoms of low cardiac output, and 3) intention to treat. Seven patients had paroxysmal atrial fibrillation and 2 had recurrent atrial fibrillation.