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Canadian Journal of Anesthesia, Vol 29, 1-8, Copyright © 1982 by Canadian Anesthesiologists' Society

Linear Airway Dimensions in Children: Including Those with Cleft Palate

G.A. R. MORGAN 1 and D. J. STEWARD 2

1 Department of Anaesthesia, The Hospital For Sick Children, Toronto, Ontario, Canada
2 Department of Anaesthesia, University of Toronto, Canada

Linear airway dimensions from incisor teeth to vocal cords were measured from radiographs. Normal children were slightly taller and heavier than children being treated for cleft palate and had significantly longer upper airway dimensions. Tracheal length was measured in 50 normal children breathing spontaneously under general anaesthesia and was found to correlate best with body weight. Strong positive correlation with height was also found. Data from normal children in these two studies were used to calculate the distance from lips to mid-trachea to determine optimal length for a tracheal tube. Previously published data on airway lengths in children are reviewed.

Key Words: AIRWAY, anatomy • linear dimensions, children






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Copyright © 1982 by the Canadian Anesthesiologists' Society.