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Published in: Journal of Cardiovascular Translational Research 4/2013

01-08-2013

Evaluation of Right and Left Ventricular Diastolic Filling

Author: Ares Pasipoularides

Published in: Journal of Cardiovascular Translational Research | Issue 4/2013

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Abstract

A conceptual fluid–dynamics framework for diastolic filling is developed. The convective deceleration load (CDL) is identified as an important determinant of ventricular inflow during the E wave (A wave) upstroke. Convective deceleration occurs as blood moves from the inflow anulus through larger-area cross-sections toward the expanding walls. Chamber dilatation underlies previously unrecognized alterations in intraventricular flow dynamics. The larger the chamber, the larger becomes the endocardial surface and the CDL. CDL magnitude affects strongly the attainable E wave (A wave) peak. This underlies the concept of diastolic ventriculoannular disproportion. Large vortices, whose strength decreases with chamber dilatation, ensue after the E wave peak and impound inflow kinetic energy, averting an inflow-impeding, convective Bernoulli pressure rise. This reduces the CDL by a variable extent depending on vortical intensity. Accordingly, the filling vortex facilitates filling to varying degrees, depending on chamber volume. The new framework provides stimulus for functional genomics research, aimed at new insights into ventricular remodeling.
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Metadata
Title
Evaluation of Right and Left Ventricular Diastolic Filling
Author
Ares Pasipoularides
Publication date
01-08-2013
Publisher
Springer US
Published in
Journal of Cardiovascular Translational Research / Issue 4/2013
Print ISSN: 1937-5387
Electronic ISSN: 1937-5395
DOI
https://doi.org/10.1007/s12265-013-9461-4

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