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INSUFFLATION OF COMPRESSED AIR IN THE TREATMENT FOR PNEUMONIA

INSUFFLATION OF COMPRESSED AIR IN THE TREATMENT FOR PNEUMONIA Abstract In a previous study1 it was noted that in the dog an increased intrapulmonic pressure would result in interstitial emphysema, acute pneumothorax, pneumoperitoneum and air embolism. It was found that air injected intrabronchially under increased pressure had little or no effect if a good outlet for it was supplied. If, on the other hand, there was an insufficient outlet or a complete blocking of the outflow of air, the lung expanded when the intrabronchial pressure was raised between 20 and 35 mm. of mercury. When the pressure reached a point between 60 and 100 mm. of mercury, invariably, the dogs showed the syndrome of interstitial emphysema, pneumothorax, pneumoperitoneum and air embolism. These results were obtained in dogs with normal and also with pneumonic lungs. We have repeatedly noticed that the pulmonary vessels can be emptied easily by increasing the alveolar pressure. In fact, after severing the heart from its connections References 1. Joannides, M., and Tsoulos, G.: Experimental Production of Interstitial Emphysema and Air Embolism , Arch. Surg. 21:333 ( (Aug.) ) 1930.Crossref 2. Van Allen, C. M.; Hrdina, L. S., and Clark, J.: Air Embolism from Pulmonary Vein: Clinical and Experimental Study , Arch. Surg. 19:567 ( (Oct.) ) 1929.Crossref 3. Joannides, M., and Steinman, F.: The Mechanism of Pneumonia , Arch. Int. Med. 47:24 ( (Jan.) ) 1931.Crossref 4. M. Joannides and F. Steinman (footnote 3). 5. Littig, A.: Measurement of Positive Pressure Used in Gas Anesthesia , Wisconsin M. J. 28:217 ( (May) ) 1929 6. Anesth. & Analg. 9:82 ( (March-April) ) 1930. 7. Littig (footnote 5, first reference). 8. Joannides, M.: Surgery of the Lung: Care of the Stump in Pneumectomy and in Lobectomy , Arch. Surg. 17:91 ( (July) ) 1928 9. The Relation of the Hiatus Esophageus of the Diaphragm to the Stomach , Arch. Int. Med. 43:61 ( (Jan.) ) 1929. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Internal Medicine American Medical Association

INSUFFLATION OF COMPRESSED AIR IN THE TREATMENT FOR PNEUMONIA

Archives of Internal Medicine , Volume 47 (2) – Feb 1, 1931

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Publisher
American Medical Association
Copyright
Copyright © 1931 American Medical Association. All Rights Reserved.
ISSN
0730-188X
DOI
10.1001/archinte.1931.00140200032003
Publisher site
See Article on Publisher Site

Abstract

Abstract In a previous study1 it was noted that in the dog an increased intrapulmonic pressure would result in interstitial emphysema, acute pneumothorax, pneumoperitoneum and air embolism. It was found that air injected intrabronchially under increased pressure had little or no effect if a good outlet for it was supplied. If, on the other hand, there was an insufficient outlet or a complete blocking of the outflow of air, the lung expanded when the intrabronchial pressure was raised between 20 and 35 mm. of mercury. When the pressure reached a point between 60 and 100 mm. of mercury, invariably, the dogs showed the syndrome of interstitial emphysema, pneumothorax, pneumoperitoneum and air embolism. These results were obtained in dogs with normal and also with pneumonic lungs. We have repeatedly noticed that the pulmonary vessels can be emptied easily by increasing the alveolar pressure. In fact, after severing the heart from its connections References 1. Joannides, M., and Tsoulos, G.: Experimental Production of Interstitial Emphysema and Air Embolism , Arch. Surg. 21:333 ( (Aug.) ) 1930.Crossref 2. Van Allen, C. M.; Hrdina, L. S., and Clark, J.: Air Embolism from Pulmonary Vein: Clinical and Experimental Study , Arch. Surg. 19:567 ( (Oct.) ) 1929.Crossref 3. Joannides, M., and Steinman, F.: The Mechanism of Pneumonia , Arch. Int. Med. 47:24 ( (Jan.) ) 1931.Crossref 4. M. Joannides and F. Steinman (footnote 3). 5. Littig, A.: Measurement of Positive Pressure Used in Gas Anesthesia , Wisconsin M. J. 28:217 ( (May) ) 1929 6. Anesth. & Analg. 9:82 ( (March-April) ) 1930. 7. Littig (footnote 5, first reference). 8. Joannides, M.: Surgery of the Lung: Care of the Stump in Pneumectomy and in Lobectomy , Arch. Surg. 17:91 ( (July) ) 1928 9. The Relation of the Hiatus Esophageus of the Diaphragm to the Stomach , Arch. Int. Med. 43:61 ( (Jan.) ) 1929.

Journal

Archives of Internal MedicineAmerican Medical Association

Published: Feb 1, 1931

References