title: [Pressure exerted on tracheal cuffs in intubation in the presence of nitrous oxide].
abstract: OBJECTIVE
  To compare the time course of endotracheal tube cuff pressures in presence of nitrous oxide (N2O), obtained in a tracheal model with those measured during clinical anaesthesia.
  
  
  METHODS
  Experimental and clinical prospective study.
  
  
  METHODS
  Twelve brands of low-pressure tracheal tubes.
  
  
  METHODS
  The pressure changes in the cuffs were measured over a three-hour-period in presence of a N2O (50 vol%)/O2 (50 vol%) mixture and mechanical ventilation, the tube being inserted either in a tracheal model or in the trachea of patients during general anaesthesia.
  
  
  RESULTS
  The results obtained in vitro were correlated with those measured in the patients. Therefore the tracheal model is a helpful guide for the choice of endotracheal tubes.
authors.affiliation: Centrale d'achat du matériel stérile et du pansement, CHU Rennes, France.
authors.forename: I
authors.initials: I
authors.lastname: Le Du
authors.forename: M
authors.initials: M
authors.lastname: Faucheux
authors.forename: Y
authors.initials: Y
authors.lastname: Lurton
authors.forename: B
authors.initials: B
authors.lastname: Basle
authors.forename: Y
authors.initials: Y
authors.lastname: Mallédant
mesh_terms: D000399:Air Pressure; D000769:Anesthesia, Inhalation; D006801:Humans; D007442:Intubation, Intratracheal / Q000009:adverse effects* / Q000295:instrumentation; D009609:Nitrous Oxide; D011312:Pressure; D011446:Prospective Studies; D012121:Respiration, Artificial; D013997:Time Factors; D014132:Trachea / Q000502:physiology*
chemical_list: D009609:Nitrous Oxide