CORRELAZIONI TRA LE VARIAZIONI DEI PARAMETRI POLIGRAFICI ED EMODINAMICI INDOTTE DALLA SOMMINISTRAZIONE DI OSSIGENO AD ELEVATA CONCENTRAZIONE IN SOGGETTI CON VALVULOPATIA MITRALICA

The goal of this study was to identify, utilizing apexcardiogram, other noninvasive parameters useful to evaluate the functional condition of the pulmonary vascular bed in patients with mitral stenosis and insufficiency. The patients of both sexes with mitral stenosis and insufficiency underwent left and right heart catheterization and simultaneously a polygraphic study was performed. Recordings of polygraphic as well as hemodynamic parameters were performed under control condition and after 5 min breathing of 100% Oxygen administered by facial mask. These results indicate that: changes in rapid filling angle have a close relationship with changes in pulmonary capillary wedge pressure; variations of rapid filling interval are correlated with changes in pulmonary capillary wedge pressure; variations of rapid filling interval are correlated with changes in cardiac output.