[Pulmonary hypertension and myocardial contractility in myocarditis].

Hemodynamic studies by direct and indirect methods in patients with myocarditis have revealed that as pulmonary hypertension developed, right-ventricular myocardial contractility and pulmonary arteriolar bed elasticity were decreasing. High pulmonary hypertension and structural shifts in pulmonary artery wall reduced the volumic potentialities of the lesser circulation. The antiorthostatic test was found an important test for the detection of compensatory deposition potentialities of the lesser circulation vessels in myocarditis patients.

[Radiocardiography and rheography of the pulmonary artery in the diagnosis of disorders of hemodynamics and right-ventricular contractility in patients with chronic obstructive bronchitis].

Radiocardiography and rheography of the pulmonary artery were used to examine impairments in hemodynamics and contractile function of the right ventricle in 40 patients with chronic obstructive bronchitis complicated with persistent hypertension. Right ventricular hemodynamic and contractile impairments were shown to be not equivalent with similar clinical and functional signs of pulmonary hypertension. This fact indicates that the use of special techniques is of practical value in the determination of right ventricular hemodynamics and myocardial contractility in patients with chronic obstructive bronchitis.