Peculiarities of Echocardiographic Examination in Infants with Aortic Stenosis
Analysis of the basic echocardiographic parameters in infants with aortic stenosis of Ivano-Frankivsk region was performed. The basic anatomical and hemodynamic peculiarities of aortic stenosis at valvular, subvalvular and supravalvular levels were determined. The most common form of aortic stenosis is valvular stenosis which accounts for 70% of all congenital heart disease and can be combined with different anatomic variants of commissural fusion, dysplasia of valve cusp, and hypoplasia of the aortic valve ring. 59 children with aortic stenosis under one year old were examined. Depending on the severity of aortic stenosis the children were divided into the following groups: 45.9% of cases were diagnosed with mild aortic stenosis, 23.7% of cases were diagnosed with moderate aortic stenosis, severe aortic stenosis was registered in 13.5% of cases and critical aortic stenosis was seen in 16.9% of cases. Basic echocardiographic parameters were defined. They included end diastolic volume index, ejection fraction, the Tei index, left ventricular mass index and pressure gradients across the aortic valve. As a result of dynamic monitoring of patients with different degrees of aortic stenosis the changes in basic echocardiographic parameters were defined and high sensitiveness and informativeness of Tei index for determining optimum further management of children with aortic stenosis were proved.
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