Atrial arrhythmias are frequent and are an important cause of heart failure aggravation or cerebrovascular accidents. They show a clear trend towards increasing incidence with age. Restoring and maintaining sinus rhythm with antiarrhythmic drugs delivers only temporary success and is prone to long term failure and/ or side effects. The treatment of atrial arrhythmias using RF catheter ablation is progressively becoming the treatment of choice because of the high percentage of successful cures achieved with relatively rare complications and no long term side effects.
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