[Electrophysiologic study and ablation therapy in idiopathic paroxystic atrial fibrillation].

Objective: To analyze the results of radiofrequency catheter ablation (RFCA) of the pulmonary veins (PV) in patients with paroxysmal atrial fibrillation (PAF).

Material And Methods: We describe 4 patients (38 +/- 12 years, interval 8-52; 11 men) with symptomatic PAF, refractory to antiarrhythmic drugs. Special mapping catheters were used and ablation was performed at the ostium/antrum of those veins with abnormal electrical activity (AEA).