Prediction of the Transprosthetic Velocity Following Aortic Valve Replacement with Bioprosthesis in the Patients with Aortic Stenosis
نویسندگان
چکیده
Method Twenty patients with AS without aortic insufficiency underwent AVR using bioprostheses were recruited. Preand post-AVR cardiac function parameters and aortic valve parameters were collected by transthoracic echocardiography. To evaluate the influences of peripheral vascular resistance on transvalvular flow velocity, static distensibility parameters of the carotid artery, such as b stiffness index, pressure-strain elastic modulus (Ep), and arterial compliance (AC), were obtained by a real time echo-tracking system at pre-AVR and 1 week after AVR.
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