Assessment of Longitudinal Systolic Functions of Patients with Asymptomatic Aortic Stenosis by Strain and Strain Rate

To investigate the longitudinal systolic functions of the heart with a strain and strain rate in patients with preserved horizontal systolic function (EF) with aortic stenosis. 18 consecutive patients (mean age 55±15 years, 10 men) with aortic stenosis were included in the study. The control group consisted of 12 consecutive patients (mean age 50±6 years, 4 men) without any valve disease. In all patients, color doppler images of the posterior wall, lateral wall, etc. were obtained in accordance with the guidelines. All measurements were calculated by taking the average of 3 cycles. After collection of patient data, the aortic valve area was calculated according to the continuity equations of currents. It was calculated from the basal portion of the images of the "strain and strain rates" of color doppler images. As a result, we obtained the total value by taking the average "strain and strain rates" of the 5 walls examined. The left ventricular ejection fractions were found to be preserved but not significantly different between the two groups (p=0.01). In the group with aortic stenosis, the deceleration time (DT) was found to be significantly higher than the normal group (p=0.03). There was a significant difference between the two groups in terms of total strain and strain rate values of the left ventricle (p =0.002). In patients with aortic stenosis, echocardiographic total strain and strain rate values decreased significantly