Intermittent obstruction of the Omnicarbon-valve prosthesis in the mitral position due to interference by papillary muscle. Diagnostic and surgical considerations.
The frequency of prosthetic heart valve malfunction caused by intrinsic factors has been markedly decreased by refinements of prosthetic design and by improved quality of the prosthetic material. Nevertheless, a variety of extrinsic factors, i.e. thrombus formation, bacterial endocarditis, inadequate suture technique and papillary muscle entrapment, are known to be responsible for mechanical malfunctions of prosthetic heart valves, occasionally leading to sudden cardiac death. In this report, a case of intermittent entrapment of papillary muscle in the Omnicarbon valve is presented; diagnostic and surgical aspects are discussed.
Borowski
A
A
Department of Cardiac Surgery, University of Cologne, Germany.
Reiss
N
N
Klaer
R
R
D001021:Aortic Valve; D001024:Aortic Valve Stenosis / Q000175:diagnosis / Q000601:surgery; D002114:Calcinosis / Q000175:diagnosis / Q000601:surgery; D005260:Female; D006350:Heart Valve Prosthesis / Q000009:adverse effects*; D006801:Humans; D008875:Middle Aged; D008943:Mitral Valve; D008946:Mitral Valve Stenosis / Q000175:diagnosis / Q000601:surgery; D010210:Papillary Muscles; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012086:Reoperation