Prenatal diagnosis of severe aortic stenosis

Pediatric Cardiology
F M McCaffrey, F S Sherman

Abstract

We sought to identify echocardiographic markers that might be useful for managing fetuses with significant aortic stenosis. The study was a retrospective review of fetal echocardiographic studies and postnatal outcomes of all fetuses diagnosed with significant aortic stenosis who did not have a hypoplastic left ventricle on the initial echocardiogram. Where possible, fetal echocardiographic measurements included the aortic, mitral, pulmonary, and tricuspid valve annulus sizes; left ventricular dimensions and volume; septal and left ventricular wall thicknesses; and echocardiographic Doppler interrogation of the left heart and oval fossa. Observations also included an assessment of ascites, pericardial effusion, and endocardial fibroelastosis. Prenatal measurements were compared to postnatal outcomes. Four patients (group 1) had either clinically successful relief of their aortic obstruction (n = 3) or required no intervention (n = 1). Five fetuses evolved to the hypoplastic left heart syndrome (group 2). These infants demonstrated little or no growth in left ventricular, aortic valve, or mitral valve dimensions on serial examination. They also more often exhibited mitral stenosis, severe restriction of interatrial shunting, and...Continue Reading

Citations

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