Acute immobilization of the disc in the Björk-Shiley aortic tilting disc valve prosthesis. A report of 3 cases.
Acute non-thrombotic immobilization of the disc in the Björk-Shiley aortic valve prosthesis occurred as a result of extrinsic factors in three patients. Unravelled suture or long suture ends were the cause in two cases. Tissue detached from the aortic intima migrated into the valve and locked the disc in closed position in one case. The mechanisms of extrinsic disc immobilization and its prevention and treatment are discussed.
D000208:Acute Disease; D001021:Aortic Valve / Q000601:surgery; D002315:Cardiopulmonary Bypass / Q000401:mortality; D005260:Female; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013536:Suture Techniques