Predictive value of the echocardiographic left atrial dimension in isolated ventricular septal defect.
Echocardiographic left atrial dimension has been reported to correlate with left-to-right shunt (Qp/Qs) in children with isolated ventricular septal defect (VSD) or patent ductus arteriosus (PDA). In 17 children with isolated VSD, we prospectively compared Qp/Qs with the ratio of echocardiographic left atrial dimension to aortic root diameter (LAD/Ao) and with the left atrial dimension corrected for body surface area (LAD/M2). The correlation between LAD/Ao and Qp/Qs was not statistically significant (r = 0.49, p > 0.05). The LAD/M2 correlated significantly with Qp/Qs (r = 0.66, p < 0.01); however, prediction intervals were excessively wide. Our findings indicate that it is inappropriate to predict Qp/Qs in these patients from echocardiographic LAD.
D000293:Adolescent; D001011:Aorta / Q000473:pathology; D001775:Blood Circulation; D001830:Body Surface Area; D002648:Child; D002675:Child, Preschool; D003326:Coronary Circulation; D004452:Echocardiography; D005544:Forecasting; D006325:Heart Atria / Q000473:pathology*; D006345:Heart Septal Defects, Ventricular / Q000473:pathology*; D006801:Humans; D007223:Infant; D011446:Prospective Studies