Hemodynamic evaluation of the Carpentier-Edwards porcine xenograft.
نویسندگان
چکیده
The hemodynamic function of the thin-wall, glutaraldehyde-treated porcine xenograft was evaluated in 37 asymptomatic patients an average of 8 months (range 6-15 months) after operation. Three patients had a double-valve replacement. Cardiac output and simultaneous transvalvular gradients were recorded at rest and during moderate supine exercise. In 25 patients with an aortic bioprosthesis, the average
منابع مشابه
Severe late failure of a porcine xenograft mitral valve: clinical, echocardiographic, and pathological findings.
A case of dysfunction of a Carpentier-Edwards porcine xenograft mitral prosthesis is presented. Valve failure was diagnosed by echocardiography and confirmed at operation. Histology showed valve tissue degeneration without evidence of prosthetic endocarditis.
متن کاملValve-in-a-valve concept for transcatheter minimally invasive repeat xenograft implantation.
OBJECTIVES This study sought to evaluate the feasibility of minimally invasive transapical repeat valve-in-a-valve (VinV) implantation. BACKGROUND Reoperative heart valve replacement for degenerated xenografts is associated with an increased surgical risk. METHODS Conventional Carpentier Edwards porcine aortic (n = 5) and mitral (n = 2) valve prostheses were implanted in 7 pigs. Transapical...
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OBJECTIVES This study was designed to describe Doppler-echocardiography values of Carpentier-Edwards Perimount Standard (CEPS) and Carpentier-Edwards Perimount Magna (CEPM) aortic prosthetic valves, evaluated by a single, experienced echo-laboratory, early in the postoperative phase. METHODS Three-hundred-seventy-seven consecutive patients, who had had a CEPS or a CEPM implanted in our Hospit...
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At the Niigata University Hospital, various kinds of prosthetic valves such as the Starr-Edwards nonclothand cloth-covered, Bjork-Shiley tilting disc, and Carpentier-Edwards porcine valves, have been used from September, 1965 to March, 1979 for replacement of diseased valves on 176 patients. The patients with Starr-Edwards nonclothand cloth-covered ball valves showed survival rates of 90 and 84...
متن کاملStentless aortic valve replacement: an update
Although porcine aortic valves or pericardial tissue mounted on a stent have made implantation techniques easier, these valves sacrifice orifice area and increase stress at the attachment of the stent, which causes primary tissue failure. Optimizing hemodynamics to prevent patient-prosthetic mismatch and improve durability, stentless bioprostheses use was revived in the early 1990s. The purpose...
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ورودعنوان ژورنال:
- Circulation
دوره 60 5 شماره
صفحات -
تاریخ انتشار 1979