title: [Continuous positive airway pressure (CPAP) with face mask to treat acute respiratory failure].
abstract: OBJECTIVE
  To evaluate the efficacy of continuous positive airway pressure (CPAP) administered by face mask in patients with acute respiratory failure with indication of mechanical ventilation.
  
  
  METHODS
  Eleven patients (mean age 41.3 years) in acute respiratory failure were admitted in the Respiratory Unit--Hospital São Paulo--Escola Paulista de Medicina. At the admission pH, PaO2, PaCO2, respiratory rate (f), arterial pressure and heart rate were measured. The measurements were repeated with administration of oxygen with a high flow face mask at ambient airway pressure and then with 5 cm H2O of CPAP by face mask.
  
  
  RESULTS
  The use of CPAP by face mask significantly improved the arterial blood oxygenation and decreased the respiratory rate (p < 0.05).
  
  
  CONCLUSIONS
  These data allow the conclusion that CPAP administered by face mask improves gas exchange and decreases respiratory rate in patients with acute respiratory failure and may reduce the need for invasive mechanical ventilation.
authors.affiliation: Disciplina de Pneumologia, Universidade Federal de São Paulo, Escola Paulista de Medicina.
authors.forename: M A
authors.initials: MA
authors.lastname: Scarpinella-Bueno
authors.forename: C M
authors.initials: CM
authors.lastname: Llarges
authors.forename: A M
authors.initials: AM
authors.lastname: Isola
authors.forename: M A
authors.initials: MA
authors.lastname: Holanda
authors.forename: R T
authors.initials: RT
authors.lastname: Rocha
authors.forename: J E
authors.initials: JE
authors.lastname: Afonso
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001784:Blood Gas Analysis; D001794:Blood Pressure; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D008397:Masks; D008875:Middle Aged; D011175:Positive-Pressure Respiration / Q000379:methods*; D012131:Respiratory Insufficiency / Q000097:blood / Q000628:therapy*
vernacular_title: Uso do suporte ventilatório com pressão positiva contínua em vias aéreas (CPAP) por meio de máscara nasofacial no tratamento da insuficiência respiratória aguda.