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Ann Thorac Surg 1975;20:265-273
© 1975 The Society of Thoracic Surgeons

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Articles

Long-Term Results of "Simple" Thrombectomy for Thrombosed Björk-Shiley Aortic Valve Prostheses

From the Division of Thoracic and Cardiovascular Surgery, University of Miami School of Medicine, Miami, and the Department of Thoracic and Cardiovascular Surgery, Mt. Sinai Medical Center, Miami Beach, Fla.

^* Address reprint requests to Dr. Byrd, Department of Thoracic and Cardiovascular Surgery, Mount Sinai Medical Center of Greater Miami, 4300 Alton Rd., Miami Beach, Fla. 33140

During the past two years 8 patients were seen with thrombosis of their Björk-Shiley aortic valves. Six patients were from our series, an incidence of 4%, and 2 patients had their original valve implanted at another institution. All patients had substantial problems with anticoagulation therapy. Three died prior to operation.

Early detection and emergency surgical intervention is mandatory for survival. At operation debridement of all thrombotic material from the valve provided satisfactory immediate hemodynamic improvement as well as freedom from complications for up to two years. Therapeutic levels of anticoagulation with warfarin are the only apparent protection from thrombosis of the Björk-Shiley aortic valve.

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