Abstract
Although several studies suggested equivalent outcome for pharmacologic rhythm and rate-control strategies in patients with atrial fibrillation (AF), substudies demonstrated that patients in sinus rhythm had lower mortality, but use of antiarrhythmic drugs significantly increased mortality.1 Therefore, restoration and maintenance of sinus rhythm without using antiarrhythmic drugs should lead to greater benefit for patients with chronic AF. Catheter ablation targeting the pulmonary veins (PVs) has evolved over the past decade and has become the treatment of choice for drug-resistant paroxysmal AF.
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