Abstract
We describe the case of a patient who underwent surgery for mitral insufficiency caused by an extremely rare traumatic tear in the mitral-valve leaflet. The patient was a 42-year-old man who fell from the third floor and sustained facial bone fractures, pelvic fracture, cerebral contusion, pulmonary contusion, and traumatic aortic dissection. He was admitted to the hospital. Mitral valve regurgitation was mild immediately after injury, with no hemodynamic abnormalities. The patient received hospital treatment and was discharged on day 18 after injury because his general condition had improved. The patient was regularly followed-up, and exertional dyspnea developed 2 years after the accident. Transthoracic echocardiography showed aggravation of mitral insufficiency. Mitral annuloplasty was performed 3 years after the accident. Intraoperative examination revealed a tear in the leaflet near the anterior commissure of the mitral valve (A1), apparently causing the severe mitral insufficiency. Mitral regurgitation resolved after suturing the tear in the leaflet, and exertional dyspnea also resolved.