Mean airway pressure

Not to be confused with mean arterial pressure.

Mean airway pressure typically refers to the mean pressure applied during positive-pressure mechanical ventilation. Mean airway pressure correlates with alveolar ventilation, arterial oxygenation,[1] hemodynamic performance, and barotrauma.[2] It can also match the alveolar pressure if there is no difference between inspiratory and expiratory resistance.[3]

  1. ^ Stewart AR, Finer NN, Peters KL (1981). "Effects of alterations of inspiratory and expiratory pressures and inspiratory/expiratory ratios on mean airway pressure, blood gases, and intracranial pressure". Pediatrics. 67 (4): 474–81. doi:10.1542/peds.67.4.474. PMID 6789294. S2CID 2214900.
  2. ^ Marini JJ, Ravenscraft SA (1992). "Mean airway pressure: physiologic determinants and clinical importance--Part 2: Clinical implications". Crit Care Med. 20 (11): 1604–16. doi:10.1097/00003246-199211000-00020. PMID 1424706. S2CID 42496727.
  3. ^ Hess, Dean (October 21, 2014). "Respiratory Mechanics in Mechanically Ventilated Patients" (PDF). Respiratory Care. 59 (11): 1773–1794. doi:10.4187/respcare.03410. PMID 25336536. S2CID 5706765.