Assessment of mitral Bjork-Shiley prosthetic dysfunction using digitised M mode echocardiography.
نویسندگان
چکیده
منابع مشابه
Assessment of mitral Björk-Shiley prosthetic dysfunction using digitised M mode echocardiography.
Digitised M mode echocardiograms were analysed in 22 patients with possible Björk-Shiley mitral prosthetic dysfunction. Patients with paraprosthetic mitral regurgitation had a significantly greater shortening fraction, an increased peak rate of dimension change during systole, and an increased peak velocity of circumferential fibre shortening than those with poor left ventricular function. Pati...
متن کاملDIAGNOSTIC METHODS PROSTHETIC VALVE FUNCTION Assessment of the opening angle of implanted Bjork-Shiley prosthetic valves
A method has been developed in which cineradiography is used for the assessment of the opening angle of implanted Bjork-Shiley prosthetic valves. The method is based on the fact that the ring and the disc, which are known to be circular, appear to be elliptical on x-ray films. The spatial position of the valve can be retrieved from the characteristics of these ellipses when vectoranalysis is ap...
متن کاملEchocardiographic evaluation of the Bjork-Shiley prosthetic valve.
are described. Optimal position of transducer and valve for detecting maximal disc excursion occurs when the ultrasound beam is perpendicular to the maximally opened disc. This alignment may vary from patient to patient requiring individualization by the echocardiographer. Rotation of the inner valve annulus at the time of surgery, when physiologically feasible, can facilitate optimal valve and...
متن کاملThrombotic occlusion of Bjork-Shiley prosthetic aortic valve.
Thrombotic occlusion of a prosthetic Bjork-Shiley valve is a potentially fatal complication. We present the case of a male, 62 years of age, diagnosed with thrombotic occlusion of prosthetic Bjork-Shiley aortic valve approximately 17 years post implantation. A brief review of the literature focusing on potential risk factors associated with the development of this condition and currently availa...
متن کاملSuccessful Left Ventricular Assist Device Support in Patient with Bjork-Shiley Mitral Valve Replacement
There is limited clinical experience with left ventricular assist device therapy in patients with prosthetic mitral valves. We present a case of successful left ventricular assist device support in a patient with previous mechanical mitral valve replacement.
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ژورنال
عنوان ژورنال: Heart
سال: 1984
ISSN: 1355-6037
DOI: 10.1136/hrt.51.2.168