Correlation of aortic stenosis degree with the left ventricle mass

Abstract

ABSTRACT Background: three decades ago Rapaport detached the risk of sudden death in the bearers of aortic stenosis (SAo) to the point of recommend the most precocious interruption of the natural evolution as prevention form. The objective was to establish the profile of the bearers of SAo and identify the factors that contributed to the increase of the mass of the left ventricle (LV). Casuistic and method: the population source counted with 79 bearers of SAo, stratified, being the group (G1) constituted by the patients with gradient LV-AO<50 mm Hg and the (G2) by the patients with gradient => 50 mm Hg. Observational study containing 15 variables. Uni and multivariated analysis. Results: G1 was constituted by 50 patient: 25 female gender (fg), 25 of the masculine gender (mg), medium age of 63,87±14,44 years; and G2 with 29 patients:12 of the fg and 17 of the mg, with average of age of 60,39±18,61. The univariate analysis evidenced: gender (p=0,491), mass of LV (P=0,078), maximum transaortic gradient (p=0,000), diameters: diastolic (P=0,855), sistolic (P=0,520), interventricular septum (P=0,006), posterior wall (p=0,016), ejection fraction (p=0,237), delta D% (P=0,131), aorta (P=0,153), left atrium (P=0,646). Conclusion: the bearer of SAo is a senior patient (62,64±15,93 years), with predominance for the mg 1,13/1 and as the gradient transvalve increases happens an increase in the mass of the LV that was attributed to the age (4,49%), the posterior wall (46,48%) and the thickness of the septum (49,84%). Suport: PIBIC - CEPE.