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BackgroundKnowledge of the normal nares‐to‐carina (NC) distance might prevent accidental bronchial intubation and be helpful when designing preformed endotracheal tubes (ETT).
ObjectiveThe aim was to measure NC distance and to examine whether a height/length‐based ‘modified Morgan formula’ would give useful guidance for nasotracheal ETT depth positioning.
MethodsTwo groups were studied. A younger...
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