Detection of the early cardiac changes of hypertension by echocardiography

Abstract EN

Background : Hypertension causes changes on the cardiac performance, and this effect is more profound on the LV where systolic high pressure is present. Patients and Methods : We studied 30 patients (14 females and 16 males of average age of 54.8 ± 13.5) with hypertension and 20 normal individuals, the control group (age range 45.6 ± 17.8, 11 females and 9 males).

Measurements of early filling velocity E, late filling velocity A at atrial contraction and ejection fraction were taken, also isovolumetric relaxation, and contraction times and ejection times were taken.

MPI myocardial performance index was calculated. Results : Results shows a significant increase in the isovolumetric relaxation time IRT (30 %),were IRT for the patients group was (105.4 ± 20.8) compared to (73 ± 6.86) for the normal group.

The late velocity A (42 %), were A for the patients group was (89.28 ± 18) compared to (51.1 ± 18) for the normal group.

Ejection time ET (26 %), were ET (438.2 ± 88) for the patients group compared to (324 ± 34) for the normal group.

And the ratio A / E (41 %), were A / E for patients group (1.33) compared to (0.78) for the normal group.

While no significant change was observed on ejection fraction (EF %), isovolumetric contraction time (ICT), early velocity E, and myocardial performance index (MPI). Conclusion : Diastolic function impairment was found to occur earlier than systolic function impairment in hypertensive patients.