[Strut fracture of a convex-concave 60 degree Björk-Shiley mitral valve prosthesis 5 years after implantation--metallurgic analysis of the prosthesis strut].
Acute mechanical failure of prosthetic heart valves is rare, but associated with high mortality when occurring. For convexo-concave Björk-Shiley prostheses only fractures of the outlet strut are reported. We present a case of lethal mechanical complication 5 years after implantation. By additional metallurgic analysis we were able to identify a sequential course of the outlet strut fracture. This could lead to new approaches for early detection of this complication.
Lemke
B
B
Abteilung für Kardiologie und Angiologie, Berufsgenossenschaftliche Krankenanstalten Bergmannsheil Bochum, Universitätsklinik.
Rathmann
J
J
Wiebe
V
V
Witzel
U
U
D000328:Adult; D001013:Aorta, Thoracic / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D005548:Foreign-Body Migration / Q000473:pathology; D006350:Heart Valve Prosthesis; D006352:Heart Ventricles / Q000473:pathology; D006801:Humans; D008669:Metallurgy; D008855:Microscopy, Electron, Scanning; D008943:Mitral Valve / Q000473:pathology; D008946:Mitral Valve Stenosis / Q000473:pathology / Q000601:surgery*; D011183:Postoperative Complications / Q000473:pathology / Q000601:surgery*; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012086:Reoperation; D012770:Shock, Cardiogenic / Q000473:pathology; D013499:Surface Properties
Bügelbruch einer konvex-konkaven Mitralklappenprothese Björk-Shiley 60 degrees 5 Jahre nach Implantation--Metallurgische Analyse des Prothesenbügels.