Measures of unbalance in common clinical use correlate poorly, or not at all, with one another, common AVV, and ventricular dimensions. Correlations between the measures of unbalance with common AVV leaflet or ventricular sizes, are also weak to moderate, when statistically significant. There are weak or moderate correlations between the measures of unbalance. Mean right ventricle/left ventricle inflow angle was 90.2☑5.6° and median left ventricular inflow index was 0.46 (IQR 0.4-0.5). Median age at baseline echocardiogram was 11 days (IQR 1-79) and mean atrioventricular valve index was 0.45☐.1. Two-hundred fifty-seven baseline echocardiograms of infants with complete AVSD were included. Descriptive statistics were computed and Pearson correlation coefficients were calculated to assess correlation among unbalance indices with valvar and ventricular dimensions. A standardized echo review protocol of 111 quantitative and qualitative measures was utilized. Utilizing a core lab review of baseline echocardiograms, we sought to assess the correlations among commonly used measures of unbalance and common atrioventricular valve (AVV) and ventricular sizes.Ī single reviewer evaluated baseline echocardiograms from an inception cohort of babies < age 1 year with complete AVSD admitted to one of 25 CHSS institutions.
Quantifying unbalance, the threshold for single ventricle palliation vs biventricular repair in patients with unbalanced complete atrioventricular septal defect (AVSD), is challenging.
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