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42 - The early days of volumetric capnography

from 1 - Ventilation

Published online by Cambridge University Press:  05 August 2011

J. S. Gravenstein
Affiliation:
University of Florida
Michael B. Jaffe
Affiliation:
Philip Healthcare
Nikolaus Gravenstein
Affiliation:
University of Florida
David A. Paulus
Affiliation:
University of Florida
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Summary

Capnography is used today in Lund, Sweden as a diagnostic test for pulmonary embolism. Twenty-five years ago, the importance of avoiding hypothermia during anesthesia and surgery was still not well appreciated. Capnography was an essential part of monitoring for patients susceptible to malignant hyperpyrexia. An unusual case presented itself: an infant with a myopathy developed malignant hyperpyrexia, and had repeated episodes of increased temperature and CO2 elimination postoperatively, which responded to dantrolene. There were many practical applications in cardiothoracic anesthesia. After surgery designed to palliate cyanotic lesions, VOCO2 and expired PCO2 were greater when circulation was restored. In lung transplantation, the use of two ventilators and two capnographs identified the proportion of the total respiratory load performed by each lung. Administering sodium bicarbonate always produced a sharp increase in VOCO2.
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Capnography , pp. 457 - 460
Publisher: Cambridge University Press
Print publication year: 2011

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