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Abstracts |

The Effects of IPPB on Normal and Emphysematous Subjects.

Captain Marvin L. Birnbaum
Ann Intern Med. 1964;60(2_Part_1):336. doi:10.7326/0003-4819-60-2-336_2
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The physiological effect of intermittent positive pressure breathing (IPPB) was investigated. Thirty-one subjects were divided into three groups by standard pulmonary function tests: (1) normal, (2) moderate emphysema, and (3) severe emphysema. The order of study for each subject was a control at basal level, a 15-minute period of IPPB utilizing a Bird Mark VII respirator, and a post-treatment period of up to 2 hours. A technique using a respiratory gas mixer in conjunction with the IPPB apparatus facilitated sequential minute measurements of volumes and concentrations of expired gases. Twenty to 24 arterial blood samples were taken on each individual


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