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LARYNGEAL INCOMPETENCE DURING EXPERIMENTAL RELATIVE ANALGESIA USING 50-PERCENT NITROUS-OXIDE IN OXYGEN - PRELIMINARY-REPORT BRITISH JOURNAL OF ANAESTHESIA Rubin, J., BROCKUTNE, J. G., Greenberg, M., Bortz, J., Downing, J. W. 1977; 49 (10): 1005-1008

Abstract

Ten healthy adult volunteers inhaled 50% nitrous oxide in oxygen while dental treatment was simulated for a period of 30 min. During this time 15 ml of radio-opaque dye was placed at the back of the tongue. A similar control study was performed 1 week later, the subjects inhaling pure oxygen without nitrous oxide. X-ray examination revealed that two of the 10 volunteers had aspirated dye while breathing nitrous oxide and oxygen, but no aspiration was apparent in the control study.

View details for Web of Science ID A1977DX88100008

View details for PubMedID 921863