Maintenance of airway pressure during filter exchange due to auto-triggering.

  title={Maintenance of airway pressure during filter exchange due to auto-triggering.},
  author={Joakim Engstr{\"o}m and Henrik Reinius and Camilla Fr{\"o}jd and Jonsson Hans and G{\"o}ran Hedenstierna and Anders Larsson},
  journal={Respiratory care},
  volume={59 8},
BACKGROUND Daily routine ventilator-filter exchange interrupts the integrity of the ventilator circuit. We hypothesized that this might reduce positive airway pressure in mechanically ventilated ICU patients, inducing alveolar collapse and causing impaired oxygenation and compliance of the respiratory system. METHODS We studied 40 consecutive ICU subjects (P(aO2)/F(IO2) ratio ≤ 300 mm Hg), mechanically ventilated with pressure-regulated volume control or pressure support and PEEP ≥ 5 cm H2O… CONTINUE READING

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