A 53-year-old woman was admitted for annuloaortic ectasia with moderate aortic valve insufficiency (AI) and paroxysmal atrial fibrillation. Concomitant aortic root replacement with a valve-sparing technique and closed biatrial procedure using bipolar radiofrequency ablation was performed successfully. Postoperative echocardiography showed trivial AI with regular sinus rhythm, which meant she could avoid anticoagulation therapy.