Canine animal as a model in the repercussion of pulmonary stenosis: analysis by two-dimensional echocardiography and doppler mode - case report

Pulmonary stenosis is a congenital disease characterized by narrowing of the right ventricular outflow tract This change results in a resistance to blood flow and consequently an increase in the after load leading to the elevation of systolic pressure of the right ventricle resulting in concentric hypertrophy Echocardiographic findings such as right ventricular diastolic dysfunction stenosis and pulmonary valve insufficiency with regurgitant flow observed at color Doppler were essential for diagnosis A years old small dog attended at the Hospital Veterin aacute rio Universit aacute rio HVU UFPI was taken as an animal model to report the hemodynamic changes caused by pulmonary insufficiency and stenosis in a comparative analysis to the same disease when it occurs in humans Due to the similarities between hemodynamic findings in pulmonary stenosis of dogs and humans this species proved to be a good animal model to evaluate the repercussion of this congenital heart disease by Doppler echocardiography