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Noninvasive evaluation of normal and abnormal prosthetic valve function
Journal article   Open access   Peer reviewed

Noninvasive evaluation of normal and abnormal prosthetic valve function

Morris N. Kotler, Gary S. Mintz, Ioannis Panidis, Joel Morganroth, Bernard L. Segal, John Ross and Julia C Ross
Journal of the American College of Cardiology, v 2(1), pp 151-173
Jul 1983
PMID: 6853909
url
https://doi.org/10.1016/s0735-1097(83)80388-xView
Published, Version of Record (VoR)Open Access (Publisher-Specific) Open

Abstract

Noninvasive techniques are helpful in evaluating the function of mechanical prostheses and tissue valves. Combined phonocardiography and M-mode echocardiography together with cinefluoroscopy are the most useful noninvasive techniques in differentiating normal from abnormal metallic prosthetic valve function. The intensity of the opening and closing clicks and associated murmurs will depend on the type of prosthetic valve, the heart rate and rhythm and the underlying hemodynamic status. Arrhythmias or conduction disturbances, or both, may produce motion patterns that mimic some of the echocardiographic signs of malfunctioning prosthetic valves. Differentiation of thrombus formation or tissue ingrowth from paravalvular regurgitation or dehiscence is possible by noninvasive techniques. Disc variance, a potentially serious and lethal problem with the older Beall valves, can be readily detected by cinefluoroscopy and echophonocardiography. With regard to bioprosthetic valves, two-dimensional echocardiography is superior to M-mode echocardiography in detecting primary valve failure. In addition, detection of vegetations, valve alignment and ring and individual leaflet motion can be best accomplished by two-dimensional echocardiography. Of greater importance is the patient serving as his or her own control in the follow-up assessment of prosthetic valve function by noninvasive techniques.

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Web of Science research areas
Cardiac & Cardiovascular Systems
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