Intermittent Positive Pressure Breathing

Abstract

THE therapeutic value of mechanical respiration in acute and chronic pulmonary diseases, as well as in cardiac conditions, has encouraged the development of many types of apparatus, found largely in the laboratories of physiologists and clinicians interested in pulmonary diseases. The numerous mechanical devices successfully used for pressure breathing include face masks, hood domes and body respiratory chambers, which, depending on the method of application, induce different physiologic responses.Notation SystemThe factors that enter into all types of pressure breathing are as follows: timing of pressure (intermittent — during inspiration or expiration — and continuous — during inspiration and . . .