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Canadian Journal of Anesthesia, Vol 31, 576-578, Copyright © 1984 by Canadian Anesthesiologists' Society

Technical Communications: Internal Mis-Mating of Breathing System Components

I. A. SLOAN MD FFARCS(ENG) FRCP(C) FAAP1 and NANCY K. IRONSIDE MD FRCP(C)1

1 Department of Anaesthesia, University of Toronto and The Hospital for Sick Children, Toronto, Ontario and the Department of Anaesthesia, Orillia Soldiers' Memorial Hospital, Orillia, Ontario

Address correspondence to: Dr. I. A. Sloan, Department of Anaesthesia, The Hospital for Sick Children, 555 University Avenue, Toronto, Ontario, Canada M5G 1X8.

A patient anaesthetized for bronchoscopy could not be ventilated when components of the breathing system met too closely and prevented the outflow of expired gas. This type of obstruction within the system may occur in the Ayre's T-piece, and when "low dead space" mask angles or co-axial systems are used with "low dead space" tracheal connectors or bronchoscopes. The problem is especially dangerous because it is not easily identified and subjects the patient to a very high airway pressure.

Key Words: COMPLICATIONS: accidents, hazards • EQUIPMENT, CIRCUITS: Ayre's T-piece, co-axial; tracheal tube connector






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Copyright © 1984 by the Canadian Anesthesiologists' Society.