Echocardiography and cardiac catheterization data: as predictors of severity in aortic stenosis

ABSTRACT

The diagnosis and quantifying severity of aortic stenosis [AS] has undergone substantial refinement, Doppler-echocardiography provides non invasive measures of the transvalvular gradient while cardiac catheterization provides direct measurement of gradient. Study the predictors of severity of aortic stenosis as using Doppler-chocardiography and cardiac catheterization data and the correlation between these data. This is a prospective study of patient with isolated aortic stenosis. Referred to Ibn AL-Nafies Teaching Hospital from October 2007 - October 2008. Echocardiography [echo] and cardiac catheterization[cath] data were recorded and analyzed for the studied group. Sixty -five patients with isolated AS, male Female ratio was [3.51] their age ranges from 18-45 years. The analysis of cardiac echo and catheterization data reveal that each of the following data; left atrium size, left ventricule [LV] wall thickness and LV end diastole pressure were significantly associated with the severity of AS. Doppler estimated Pressure gradient [PG] was underestimate the transvalvular gradient across the aortic valve so should never be used alone as a predictor of severity of AS and should be interpreted together with other echo and cath data as a determinant of AS severity