[Hemodynamic and prognostic evaluation of total anomalous pulmonary venous return by means of echocardiographic measurement of the heart cavities]. / Valoración hemodinámica y pronóstica de la conexión anómala total de venas pulmonares mediante medición ecocardiográfica de las cavidades cardiacas.

The purpose was to demonstrate the relationship between cardiac cavity size, measured by echocardiography, with the hemodynamic overload and short-term prognosis in children with total anomalous pulmonary venous return (TAPVR). Ten children were studied; the age varied from 2 weeks to 4 months. The clinical and cardiac catheterization findings were compared with echocardiographic measurements. Children with a smaller left atrium showed severe pulmonary resistance and lower systemic cardiac output (P less than 0.01). Right ventricular dilatation was bigger when pulmonary resistance was more elevated (P less than 0.05). Children with end-diastolic diameter of the left ventricle less than 12.8 mm had lower cardiac output (P less than 0.01) and death rate was significantly elevated during the first twenty weeks of life (80%). Doppler-echocardiography is useful in the recognition of TAPVR type, as well as to evaluate the hemodynamic changes and detect the high risk group.