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Jang, Soung, Park, and Lee: Echocardiographic Doppler Mitral Valve Flow Velocity In Hypertension
Original Article
Korean Circulation Journal

Korean Circulation Journal 1987; 17(1): 123-129.

Published online: 31 March 1987

DOI: https://doi.org/10.4070/kcj.1987.17.1.123

Echocardiographic Doppler Mitral Valve Flow Velocity In Hypertension

Byeng Hwan Jang, M.D., In Whan Soung, M.D., Chong Hoon Park, M.D., Bok Hee Lee, M.D.

Copyright © 1987 The Korean Society of Circulation

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This investigation was performed to evaluate Doppler mitral valve flow velocity profiles in hypertensive heart disease for the detection of the left ventricular diastolic dysfunction which preceded the systolic dysfunction.
Doppler derived parameters included; the duration of the early diastolic flow velocity peak(DF duration), the downward slope of the early diastolic flow velocity peak (EF slope) and the ratio between the height of the early and the late diastolic flow velocity peak (E-E'/A-A'). Doppler flow velocity profiles were measured in 19 normotensive subjects and 28 hypertensive patients.
We found decreased EF slope in hypertensive patients (3.6±1.4./sec) in comparison with normotensive subjects (5.2±2.4m/sec) (p<0.01). In hypertensive patients, E-E'/A-A' value was significantly lower (0.8±0.2) than that of normotensive subjects (1.6±0.4)(p<0.001). DF duration was similar in both groups.
In conclusion, we found that Doppler mitral valve flow velocity profiles, EF slope and E-E'/A-A', were decreased in hypertensive patients, which may be due to the left ventricular diastolic dysfunction.

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