Left ventricle systolic function assessment in severe aortic stenosis with patients of high gradient vs. low gradient by conventional echocardiography methods (EF/FS) and speckle tracking echocardiography (STE)
Abstract
The main aim of this study is to assess the left ventricle (LV) systolic function in severe aortic stenosis (AS) in patients of high gradient vs. low gradient by conventional echocardiography methods (ejection fraction EF/ fractional shortening FS) and speckle tracking echocardiography (STE). The three groups of LG, are compared in terms of their LVEF and LVFS percentages, and the comparison between the HG and LG groups has also been made in terms of LVEF and LVFS percentages. Furthermore, correlation between the STE and conventional methods has also been made to determine which methods provide better results regarding LV systolic function. A sample size of 83 of severe AS patients were participated, average age is 76 years, using both retrospective and prospective study design methods. According to the outcomes obtained in this study, some patients in LG-LF and HF-HG groups showed low LVEF and LVFS percentages, which put them in the category of severe LVEF and FS illustrating that these patients have higher chances of systolic LV impairment and heart failure as compared to patients of other groups. Moreover, the t-test outcomes showed that STE (GLS) provided much better assessment of LV systolic function as compared to the conventional echocardiographic methods EF/FS.