Fifty-One Years With An Aortic Valve Prosthesis Despite Suboptimal Anticoagulation: Half A Century With The Smeloff-Cutter Valve

This case report describes an unusual case of a 69-year-old man who had an aortic valve replacement with the Smeloff-Cutter aortic mechanical prosthesis for aortic valve regurgitation at the age of 18years. Echocardiography revealed a well-suited and well-functioning mechanical prosthesis. Even though the patient did not take any anticoagulant therapy or anti-platelets agent for 12 years, he was in surprisingly good health. To the best of our knowledge, this is the first time a mechanical 'ball-in-cage' valve prosthesis has lasted for such a long time without complications, although the patient has not been compliant with the anticoagulant therapy for 12 consecutive years.