Shrinkage and degradation of the Delrin occluder in the tilting-disc valve prosthesis.
D000328:Adult; D001022:Aortic Valve Insufficiency / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D001027:Aortography; D001344:Autopsy; D006328:Cardiac Catheterization; D002302:Cardiac Output; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008944:Mitral Valve Insufficiency / Q000000981:diagnostic imaging / Q000601:surgery; D009206:Myocardium / Q000473:pathology; D013242:Sterilization