Our
aim was to investigate the changes in the myocardium stiffness index for
patients suffering from systemic hypertension, and to assess their left
ventricular performance. We studied 263 hypertensive patients and 166 healthy
subjects as a control group. By using conventional Doppler echocardiography, the following parameters were measured—Left ventricular end diastolic diameter, left ventricular
end systolic diameter, transmitral early velocity, isovolumic relaxation time,
and isovolumic contraction time. Tissue Doppler imaging (TDI) was used in the
measurements of the
early mitral annular velocity (Ea) and the diastolic stiffness was obtained by
calculating the
ratio E\Ea\LVIDd. Index myocardial performance (IMP) was calculated according
to following
equation (IVCT + IVRT)/ET for both the control group and hypertensive group.
Results reveal that
the differences in the
average value of transmitral early filling velocity (E) between patients and control groups for age range (20-49) and (50-80) were (−1.91%)
and (−3.69%)respectively with p value >0.05 for both
groups, and the changes in LVIDd
between patients and control groups
were 0.42%
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