Successful repair of atrial fibrillation by surgical ablation in a patient with persistent left superior vena cava and mitral stenosis.

We recently cared for a woman who had mitral stenosis, atrial fibrillation, absent right superior vena cava, and persistent left superior vena cava. She underwent mitral valve replacement and surgical ablation of the pulmonary vein, and conjunction of the coronary sinus and left superior vena cava. Her atrial fibrillation was cured and successfully restored to sinus rhythm postoperatively.