Clinical Physiology of Circulation

Chief Editor

Leo A. Bockeria, MD, PhD, DSc, Professor, Academician of Russian Academy of Sciences, Director of Bakoulev National Medical Research Center for Cardiovascular Surgery

Stress in mitral valve leaflets and bioprosthesisin mitral position. Influence of fibrousring on leaflet stress

Authors: Bockeria L. A., Skopin I. I., Sazonenkov M. A., Tumaev E. N.

Link: Clinical Physiology of Blood Circulaiton. 2008; (): -

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Abstract

We studied the tissue stress value in systole in natural mitral valve and bioprostheses. Using the data obtained by measurements of normal anatomic preparations, echocardiographic and technical data, we could make models for normal valve and mitral bioprosthesis. To calculate the models we applied finite-element method. We came to conclusion that arcuate fibrous ring helps reduce leaflet stress approximately by 50% whereas framed bioprosthesis in mitral position does not have such features, that is why his leaflets in systole are more than double stressed

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