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Anesth Analg 1977; 56:359-362
© 1977 International Anesthesia Research Society
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Faulty Anesthesia Circuits

A Source of Environmental Pollution in the Operating Room

JAMES E. COTTRELL, MD*, JACK CHALON, MD{dagger}, and HERMAN TURNDORF, MD{ddagger}

*Assistant Professor, Department of Anesthesiology, New York University Medical Center, New York City, New York 10016. {dagger}Associate Professor, Department of Anesthesiology, New York University Medical Center, New York City, New York 10016. {ddagger}Professor and Chairman, Department of Anesthesiology, New York University Medical Center, New York City, New York 10016.

Abstract

Commonly used disposable anesthesia circuits were studied for leak and gas spillage. Trace anesthetic gas concentrations produced by these circuits in the anesthesiologist's breathing zone were analyzed by a Hewlett-Packard Gas Chromatograph. These measurements demonstrated ambient halothane (3.29 ± 0.1 ppm) and N2O (333.5 ± 2.31 ppm) concentrations well above target levels, when swivel-type disposable anesthesia circuits were used, despite the presence of standard gas-scavenging devices and appropriate operating room fresh air exchange rates. Lower ambient concentration levels (0.38 ± 0.03 ppm halothane and 31.3 ± 1.49 ppm N2O) were measured when Y-type disposable anesthesia circuits were used.






Lippincott, Williams & Wilkins Anesthesia & Analgesia® is published for the International Anesthesia Research Society® by Lippincott Williams & Wilkins with the assistance of Stanford University Libraries' HighWire Press®. Copyright 2006 by the International Anesthesia Research Society. Online ISSN: 1526-7598   Print ISSN: 0003-2999 HighWire Press
Copyright © 1977 by the International Anesthesia Research Society.