[Pulmonary arterial bnading hemodinamic and clinical evaluation in 23 cases (author's transl)].

This is a study of 23 cases with pulmonary plethora and cardiac failure. A "banding" of pulmonary artery was performed, to diminish the pulmonary bloodflow in order to avoid the development of pulmonary hypertensive changes and to improve the heart failure. The mean age of the cases operated upon was 16,9 months. The complications post-banding were: stenosis of the pulmonary outflow tract and necrosis or calcification of the pulmonary artery wall. There was a direct relationship between these complications and the time of persistence of the "banding". The pulmonary artery pressure, distal to the "banding", was reduced as much as 2/3 of the previous pressure in all patients below 6 months and in 63,64% of those patients above 1 year old. A patent ductus arteriosus, complicating the ventricular septal defectis closed prior to perform the "banding" in order to see its role in the pulmonary hyperkinetic hypertension. This is carried out only if pulmonary hypertension remains unaffected.