Assessment of aortic stenosis severity

Assessment of site and severity in congenital aortic stenosis.

It has frequently been stated that congenital aortic valve stenosis cannot be distinguished with any confidence from discrete subvalvar aortic stenosis on clinical grounds, and that their separation rests on the results of hmmodynamic investigation and angiocardiography (Nadas, 1957; Ongley et al., 1958; Dotter et al., 1961; Braunwald et al., 1963; Engle and Ehlers, 1964). Our experience has le...

Assessment of Aortic Stenosis Severity by Cardiovascular Magnetic Resonance

Cardiovascular magnetic resonance (CMR) has become a valuable tool to corroborate aortic stenosis (AS) severity when echocardiography assessment is discordant. Moreover, CMR can provide useful complementary information about AS severity and hemodynamic markers. In particular, the use of advanced 4D flow CMR allows a comprehensive assessment of complex flow alterations produced by AS. This revie...

Assessment of aortic valve stenosis severity using intelligent phonocardiography.

Assessing the severity of aortic stenosis.

The height of the "a" wave of the apexcardiogram was evaluated as a marker for critical aortic stenosis in patients over 40. Critical aortic stenosis was defined as an aortic valve area < .75 cm2 with no more than mild aortic insufficiency. Phonocardiograms and apexcardiograms were performed on 72 patients with catheterization proven aortic stenosis and on 14 normal controls, all over age 40. T...

Assessment of Aortic Valvular Stenosis

In a search for an indirect estimate of severity, data from 40 patients with pure aortic stenosis have been analyzed. Calculated aortic valvular areas ranged from 0.5 cm2 to 2.4 cm.2 Both aortic systolic upstroke time and the rate of aortic pressure rise were significantly altered by aortic stenosis; neither permitted reliable estimates of severity of the stenosis. An estimate of arterial compl...