Estimation of teeth-to-vallecula distance for prediction of optimal oropharyngeal airway length in young children
- Authors
- Kim, S. H.; Kim, D. H.; Kang, H.; Suk, E. H.; Park, P. H.
- Issue Date
- Nov-2011
- Publisher
- OXFORD UNIV PRESS
- Keywords
- airway management; anaesthesia; paediatrics; regional anatomy
- Citation
- BRITISH JOURNAL OF ANAESTHESIA, v.107, no.5, pp 769 - 773
- Pages
- 5
- Journal Title
- BRITISH JOURNAL OF ANAESTHESIA
- Volume
- 107
- Number
- 5
- Start Page
- 769
- End Page
- 773
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/21130
- DOI
- 10.1093/bja/aer266
- ISSN
- 0007-0912
1471-6771
- Abstract
- Background. Estimation of teeth-to-vallecula distance would facilitate the selection of properly sized oropharyngeal airways in young children. The aims of the present study were to measure the teeth-to-vallecula distance and to create an algorithm to predict this distance based on anatomical landmarks and patient characteristics in children. Methods. Two hundred children, aged 1-9 yr, undergoing elective surgery were investigated. After induction of general anaesthesia, the distance from the teeth to the vallecula was measured using a laryngoscope with a straight blade. After intubation, the distances from the mouth angle to the mandible angle and the tragus of the ear were measured with a tape measure. Results. The teeth-to-vallecula distance was significantly correlated with the age, weight, height, and external measurements (P<0.001). By stepwise multiple linear regression analysis, a formula was obtained for the teeth-to-vallecula distance (cm) 3.998+0.017 x age (months)+the mouth-to-mandible distance x 0.286 with a high coefficient of determination (r(2) = 0.764). Conclusions. The teeth-to-vallecula distance can be predicted using the age and the mouth-to-mandible distance in young children.
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