[Response to exertion of patients with obstructive bronchopneumopathies in the stage of chronic hypoxia and hypercapnia (functional study)].
Twenty patients suffering from chronic obstructive bronchopulmonary disease were tested during exercise. If exhaustive load is always reduced; it is difficult to predict from the functional results obtained at rest. The commun characteristic found in those patients is the insufficient adaptation during exercise of the VA/V ratio, with deterioration of Pao2 and Paco2. Acidosis is constant and mixed both metabolic and respiratory. The results are discussed after review of the literature.
D000138:Acidosis / Q000209:etiology; D000328:Adult; D002245:Carbon Dioxide / Q000097:blood; D002908:Chronic Disease; D006801:Humans; D006935:Hypercapnia / Q000209:etiology; D000860:Hypoxia / Q000209:etiology; D008173:Lung Diseases, Obstructive / Q000150:complications / Q000503:physiopathology*; D008875:Middle Aged; D010100:Oxygen / Q000097:blood; D010101:Oxygen Consumption; D005082:Physical Exertion; D012119:Respiration
D002245:Carbon Dioxide; D010100:Oxygen
Le comportement a l'effort des patients atteints de bronchopneumopathie obstructive au stade d'hypoxie et d'hypercapnie chroniques (étude fonctionelle)