Left ventricular long axis tissue Doppler systolic velocity is independently related to heart rate and body size.

ABSTRACT:

Background

The physiological factors which affect left ventricular (LV) long-axis function are not fully defined. We investigated the relationships of resting heart rate and body size with the peak velocities and amplitudes of LV systolic and early diastolic long axis motion, and also with long-axis contraction duration.

Methods

Two groups of adults free of cardiac disease underwent pulsed-wave tissue Doppler imaging at the septal and lateral mitral annular borders. Group 1 (n = 77) were healthy subjects <50 years of age and Group 2 (n = 65) were subjects between 40-80 years of age referred for stress echocardiography. Systolic excursion (SExc), duration (SDur) and peak velocity (s') and early diastolic excursion (EDExc) and peak velocity (e') were measured.

Results

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SUBMITTER: Peverill RE 

PROVIDER: S-EPMC5348126 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature