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Posthypercapnic Hemodynamic Changes in Dogs

Posthypercapnic Hemodynamic Changes in Dogs Changes in Dogs’ the Department of Physiology, HEATH2 AND E. B. BROWN, JR. From of Minnesota, ikfinnea~dis, Minnesota sufficient to produce symptoms ofr carbon aloxrae mtoxication occurred in many submarines during the Second World War (I). When personnel recommenced breathing fresh air after breathing air containing increased concentrations of COZ, various symptoms including nausea, vomiting, headache and fainting followed. Earlier Itami (2) had noted that ventricular fibrillation occurred in cats and dogs, and Goldstein and DuBois (3) observed hypotension in humans following cessation of CO2 breathing. Human deaths have been attributed to such posthypercapnic phenomena, as in the British submarine ‘Thetis’ disaster (4), and following routine surgical anesthesia and later Buckley and cow Dripps (6), workers (s), established hypercapnia as the probable cause of ‘cyclopropane shock.’ Miller and Brown showed in a series of paper (7-10) that in dogs a rapid return to air or oxygen following breathing of high CO2 mixtures for periods of 2-4 hours, regularly led to a marked reduction in arterial pressure and severe alterations in the electrocardiogram, with ventricular fibrillation and death occurring in a high percentage of the cases. The only measures which they found to be effective in preventing these abnormalities http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Applied Physiology The American Physiological Society

Posthypercapnic Hemodynamic Changes in Dogs

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Publisher
The American Physiological Society
Copyright
Copyright © 1956 the American Physiological Society
ISSN
8750-7587
eISSN
1522-1601
Publisher site
See Article on Publisher Site

Abstract

Changes in Dogs’ the Department of Physiology, HEATH2 AND E. B. BROWN, JR. From of Minnesota, ikfinnea~dis, Minnesota sufficient to produce symptoms ofr carbon aloxrae mtoxication occurred in many submarines during the Second World War (I). When personnel recommenced breathing fresh air after breathing air containing increased concentrations of COZ, various symptoms including nausea, vomiting, headache and fainting followed. Earlier Itami (2) had noted that ventricular fibrillation occurred in cats and dogs, and Goldstein and DuBois (3) observed hypotension in humans following cessation of CO2 breathing. Human deaths have been attributed to such posthypercapnic phenomena, as in the British submarine ‘Thetis’ disaster (4), and following routine surgical anesthesia and later Buckley and cow Dripps (6), workers (s), established hypercapnia as the probable cause of ‘cyclopropane shock.’ Miller and Brown showed in a series of paper (7-10) that in dogs a rapid return to air or oxygen following breathing of high CO2 mixtures for periods of 2-4 hours, regularly led to a marked reduction in arterial pressure and severe alterations in the electrocardiogram, with ventricular fibrillation and death occurring in a high percentage of the cases. The only measures which they found to be effective in preventing these abnormalities

Journal

Journal of Applied PhysiologyThe American Physiological Society

Published: Mar 1, 1956

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