Validation and Re-Evaluation of a Discriminant Model Predicting Anatomic Suitability for Biventricular Repair in Neonates With Aortic Stenosis

Abstract

Both of our original scoring systems are less accurate at predicting outcome than in our original analysis. Revised discriminant analysis yielded a model similar to our original equation that was 90% accurate at predicting survival with a biventricular circulation among neonates with AS and a mitral valve area z-score >-2.

Idiopathic Calcification of Infancy-Case Report and Review of Literature

“…The aortic annulus measured 5.5-6.0 mm, ascending aorta 6 mm, transverse arch 3 mm and descending aorta 3 mm. The z score was at the 26th ISSN: 2380-0534 percentile at -0.64 (normal 0.52 to 0.77) [3]. These findings were consistent with aortic wall calcification ( Figure 2).…”

Validation of 3D Echocardiographic Assessment of Left Ventricular Volumes, Mass, and Ejection Fraction in Neonates and Infants With Congenital Heart Disease

“…4,8 However, even when using risk stratification scores, deciding which ventricles will be able to perform systemic work continues to be problematic. 9 MRI summation of discs has been applied to measure LV volumes in these young patients. 4 However, MRI scans may require general anesthesia, and in some instances mechanical venti-lation, and involve a series of breath holds that may be associated with hemodynamic compromise in some of these very ill infants.…”

Management of severe aortic valve stenosis in the neonate

“…The infant is thus assessed for suitability for a biventricular circulation using various protocols and scoring systems based variously on mitral valve diameter, indexed aortic root diameter, indexed MV area, indexed LV mass, LV inflow structures, morphology of the LVOT, length of the LV, presence and degree of EFE, and functional variables such as reversed flow in the ascending aorta and LV function. (33,34) None of these scoring systems have proven to be completely accurate.…”