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Full text of "Diseases Of The Nose Throat And Ear"

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THE LARYNX, BRONCHI AND OESOPHAGUS

will need to be performed. When a tracheostomy is required care should
be taken in choosing the type of tube to be worn. Due to the incoordination in
swallowing following a tracheostomy, the larynx and the subglottic region
above the tracheostome tend to act as a sump. To avoid this, the Rees-Pracy
tube was designed. This is a valved tube which on expiration sends the
airflow through the subglottis and glottic space. This prevents secretions
collecting there and so cuts down the subglottic oedema which so often makes
extubation in a child a tedious and difficult problem.

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