OUP user menu

Fluid mechanics of a model mitral valve and left ventricle

DOI: http://dx.doi.org/10.1093/cvr/6.2.199 199-210 First published online: 1 March 1972


A model of the left ventricle was built incorporating a mitral and an aortic valve. The bicuspid mitral valve was seen to achieve most of its closure during diastole. This was shown to be due to a ring-vortex occupying the left ventricle together with flow deceleration through the mitral ring during the latter part of diastole. The vortex was asymmetrical in the model, because of the shape of the ventricle, and this caused the anterior cusp to close earlier in diastole than the posterior cusp. Enlargement of the ventricle eliminated the vortex and resulted in later closure of the mitral valve. The effect of atrial systole on valve closure was studied experimentally and theoretically.

    Sign in

    ESC members Follow the 'ESC Member and Congress Delegate Sign In' link below for free online access if your subscription to this journal is via the European Society of Cardiology, either as a member or an ESC Congress delegate. Discover if you are an ESC member here.

    Otherwise, if your subscription is via OUP, enter your OUP username and password, or select an alternative sign in option below.

    Log in through your institution