الفهرس يوجد فقط 14 صفحة متاحة للعرض العام
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المستخلص
Objectives: Diastolic dysfunction is important prognostic indicator for a diverse number of cardiac conditions, The purpose of this study was to investigate the relationship between left atrial (LA) myocardial function and left ventricular (LV) diastolic dysfunction in subjects with hypertension using Strain (SI) and strain rate (SR) imaging. Methods: Thirty seven control subjects and fourty two hypertensive patients were included in this study, the hypertensive group was subdivided into two groups, depending on the presence or absence of diastolic dysfunction (D.D), the first group included twenty two subjects and represents the hypertensive patients without diastolic dysfunction, and the second included twenty subjects and represents hypertensive patients with diastolic dysfunction.Results: LA myocardial strain rate parameters were all significantly affected compared to the control group, left atrial function is affected in the hypertensive with D.D group as shown by the reduced average PALS, average SR S, and average SR E and elevated average SR A values.Conclusion: Speckle tracking derived SR imaging is a useful noninvasive method for quantifying regional LA myocardial function, which is closely associated with different degrees of LV diastolic dysfunction in subjects with preserved LVEF even in the presence of normal standard indexes of LA function