Pulmonary hypertension in chronic pulmonary emphysema

摘要: Abstract 1.1. A significant elevation of pulmonary arterial diastolic pressure was found in twenty-four patients with chronic emphysema. Systolic also elevated the majority these patients. Evidence is presented which indicates that hypertension emphysema related to an increased vascular resistance lungs. 2.2. Marked respiratory variation outstanding characteristic intravascular and intracardiac records This depends upon abnormally wide fluctuations intrathoracic pressure. 3.3. There no correlation between degree severity as estimated by altered ratio residual air total lung volume. 4.4. Eight had definite evidence right heart failure prior study. The significantly higher oxygen saturation blood lower this group than sixteen uncomplicated failure. 5.5. mean arteriovenous difference twenty-three similar reported for normal subjects. No indicate unsaturation induces increase output heart.