CLINICAL STUDIES OF RESPIRATION
- 1 May 1938
- journal article
- research article
- Published by American Medical Association (AMA) in Archives of internal medicine (1908)
- Vol. 61 (5) , 720-725
- https://doi.org/10.1001/archinte.1938.00180100030004
Abstract
Extreme expiratory inflation was apparently of major importance in the production of air hunger and dyspnea in several of our patients with the effort syndrome. These observations suggested that enlargement of the expiratory volume of the chest might be a factor in the production of air hunger and dyspnea in patients with cardiac failure. In a previous study1the respirations were stimulated by reducing the oxygen or increasing the carbon dioxide content of the inspired air, both separately and simultaneously, and it was found that patients with cardiac failure were able to tolerate as great alterations of the inspired air as those tolerated by normal subjects. The former group, on the other hand, were unable to perform as much physical exercise as the normal subjects. These observations indicate that the respiratory stimulus produced by physical exertion is different from that produced by alteration of the inspired air. The purposeThis publication has 0 references indexed in Scilit: