title: Insidious strut fractures in a DeBakey-Surgitool aortic valve prosthesis.
abstract: Recent reports of cage wear occurring in DeBakey-Surgitool aortic valve prostheses prompted us to examine with image intensification all our patients who have had this type of prosthesis implanted. One patient, who was asymptomatic, was discovered to have a prosthesis with two fractured struts. This patient's prosthetic valve was replaced successfully with a stented porcine heterograft prosthesis. Including the valve removed from this patient, 8 DeBakey-Surgitool aortic valves with structural defects have been reported to the manufacturer. In the absence of a catastrophic event, patients with valves having fractured or worn struts may be totally asymptomatic, and routine periodic roentgenographic examination may be the only way of detecting strut wear or fracture.
mesh_terms: D000293:Adolescent; D000328:Adult; D000818:Animals; D001021:Aortic Valve / Q000000981:diagnostic imaging / Q000601:surgery*; D001022:Aortic Valve Insufficiency / Q000601:surgery*; D006350:Heart Valve Prosthesis / Q000592:standards*; D006801:Humans; D007221:Industry / Q000379:methods; D008297:Male; D008670:Metals; D011856:Radiographic Image Enhancement; D012213:Rheumatic Fever / Q000150:complications; D013314:Stress, Mechanical; D013552:Swine; D014025:Titanium; D014183:Transplantation, Heterologous; D014414:Tungsten
chemical_list: D008670:Metals; D014025:Titanium; D014414:Tungsten