Hemodynamic changes in pulmonary circulation in patients with dilated cardiomyopathy after heart transplantation

To study the state of pulmonary circuit hemodynamics, 24 patients have been examined after orthotopic cardiac transplantation. It is shown that patients with car-diomyopathy against the background of low myocardial contractility might develop hypertension of pulmonary circulation: increased pressure in the right ventricle and pulmonary circuit and vascular resistance in the pulmonary circuit. It has been found out that in the patients examined secondary pulmonary hypertension is of a functional type, since within a period from 3 to 5 months after orthotopic cardiac transplantation the degree of hypertension in the pulmonary circuit considerably decreases against the background of normal myocardial contractility of a donor heart.