Freedom from atrial arrhythmias, lasting more than 24 hours or requiring cardioversion. 1-year follow-up [clinicaltrials_resource:9b96bf664ad55fbd44e9fda3f2ee3273]

Atrial fibrillation ablation with radiofrequency, guided by 3D navigation map. Either 4mm or cooled tip-catheters will be used. It will include, at least, pulmonary veins isolation; all other radiofrequency lines, including roof and mitral isthmus line, and complex fractioned electrograms ablation will be performed according to each Hospital protocol. Radiofrequency lines block will be tested.

Freedom from atrial arrhythmias, lasting more than 24 hours or requiring cardioversion. 1-year follow-up [clinicaltrials_resource:9b96bf664ad55fbd44e9fda3f2ee3273]

Atrial fibrillation ablation with radiofrequency, guided by 3D navigation map. Either 4mm or cooled tip-catheters will be used. It will include, at least, pulmonary veins isolation; all other radiofrequency lines, including roof and mitral isthmus line, and complex fractioned electrograms ablation will be performed according to each Hospital protocol. Radiofrequency lines block will be tested.