Right chambers of the heart in children with pulmonary circulation hypervolemia

The ultrasound and angiographic parameters of the right chambers of the heart were analyzed in children with pulmonary arterial hypertension (PAH) associated with congenital heart defects. The investigation was conducted in relation to the functional class (degree) of PAH. Right cardiac remodeling was found to depend to a greater extent on afterload (pulmonary artery systolic pressure and pulmonary vascular resistance); moreover, diastolic dysfunction developed just in moderate (Functional Class II) PAH. It was ascertained that there was a prompter development of PAH with myocardial systolic and diastolic dysfunction in the presence of congenital malformations with arterial hypoxemia.

children, pulmonary arterial hypertension, cardiac systolic and diastolic function, right ventricular remodeling, arterial hypoxemia, congenital heart defects

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