Pulmonary blood volume and pulmonary capillary blood volume in valvular heart disease.

Pulmonary Blood Volume and Pulmonary Capillary Blood Volume in Valvular

Measurements of pulmonary blood volume (PBV) and pulmonary capillary blood volume (V,) and hemodynamic studies were made in a series of 106 patients with valvular heart disease (62 with predominant mitral lesions and 44 with predominant aortic lesions). The results were compared with the data obtained from 14 "normal" patients and nine normal subjects. In 14 "normal" patients, the PBV varied fr...

Pulmonary function during pregnancy in normal women and in patients with cardiopulmonary disease.

Pulmonary function studies were carried out during pregnancy in 8 normal women, in 8 patients with valvular (either mitral or aortic) heart disease, and in 8 patients with chronic pulmonary disease (either emphysema or sarcoidosis). In healthy pregnant women, changes in lung volumes and maximal expiratory flow rates were not significant. Diffusing capacity tended to decrease associated with unc...

The pulmonary diffusing capacity in congenital and rheumatic heart disease.

THE pulmonary diffusing capacity (DL ) is a measureinent relating the flow rate of gas across the alveolo-capillary membrane to the pressure gradient. Estimation of DL is possible by a variety of teehuies.l and in recent years it has resulted in a materially improved understanding of diffuse pulmonary parenchymal disease2 and of the effect of chronic airway obstruction on the pulmonary parenchy...

Wave transmission in the pulmonary arterial system in disease in man.

Pulmonary capillary blood flow was measured by the nitrous oxide-body plethysmograph technique in 21 patients with valvular heart disease or pulmonary thromboembolism during routine diagnostic cardiac catheterization. The studies were performed with a high-frequency phonocardiogram recorded from the pulmonary area to indicate the pulmonary valve opening at the beginning of right ventricular eje...

Regulation of pulmonary capillary blood volume by pulmonary arterial and left atrial pressures.