Abstract
Complete pulmonary vein occlusion is a rare complication of transcatheter radiofrequency ablation for atrial fibrillation. We here report a 37-year-old man who presented with massive hemoptysis as a result of left superior pulmonary vein occlusion caused by transcatheter radiofrequency ablation for paroxysmal atrial fibrillation. The patient was successfully managed with thoracoscopic left upper lobectomy with a satisfactory outcome.