Proportional Assist Ventilation

  • J. Mancebo
  • P. Aslanian
Conference paper
Part of the Yearbook of Intensive Care and Emergency Medicine book series (YEARBOOK, volume 1998)


Proportional assist ventilation (PAV) is a partial ventilatory support mode in which the ventilator generates pressure (Paw) in proportion to patient effort (Pmus). During PAV there is no preset target for flow, volume or airway pressure. Consequently, this mode allows the patient to retain complete control, at least theoretically, over his or her breathing pattern.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Younes M (1998) Proportional assist ventilation (PAV®). In: Brochard L, Mancebo J (eds) Artificial ventilation. Principles and applications. Arnette Blackwell (in press)Google Scholar
  2. 2.
    Younes M (1993) Patient-ventilator interaction with pressure-assisted modalities of ventilatory support. Sem Respir Med 14: 299–322CrossRefGoogle Scholar
  3. 3.
    Marantz S, Patrick W, Webster K, Roberts D, Oppenheimer L, Younes M (1996) Response of ventilator-dependent patients to different levels of proportional assist. J Appl Physiol 80: 397–403PubMedGoogle Scholar
  4. 4.
    Patrick W, Webster K, Ludwig L, Roberts D, Wiebe P, Younes M (1996) Noninvasive positive-pressure ventilation in acute respiratory distress without prior chronic respiratory failure. Am J Respir Crit Care Med 153: 1005–1011PubMedGoogle Scholar
  5. 5.
    Ranieri VM, Giuliani R, Mascia L, et al (1996) Patient-ventilator interaction during acute hypercapnia: pressure support vs. proportional-assist ventilation. J Appl Physiol 81: 426–436PubMedGoogle Scholar
  6. 6.
    Navalesi P, Hernandez P, Wongsa A, et al (1996) Proportional assist ventilation in acute respiratory failure: effects on breathing pattern and inspiratory effort. Am J Respir Crit Care Med 154: 1330–1338PubMedGoogle Scholar
  7. 7.
    Ranieri VM, Grasso S, Mascia L, et al (1997) Effects of proportional assist ventilation on inspiratory muscle effort in patients with chronic obstructive pulmonary disease and acute respiratory failure. Anesthesiology 86: 79–91PubMedCrossRefGoogle Scholar
  8. 8.
    Mancebo J, Aslanian P, Bak E, et al (1997) Effects of pressure-targeted ventilatory support during acute respiratory failure (ARF): PAV vs PSV. Am J Respir Crit Care Med 155: A526 (Abst)Google Scholar
  9. 9.
    Mancebo J, Aslanian P, Straus C, Harf A, Lemaire F, Brochard L (1997) Comparison of the effects of proportional assist ventilation (PAV) and pressure support ventilation (PSV) during variations in ventilatory demand. Am J Respir Crit Care Med 155: A686 (Abst)Google Scholar
  10. 10.
    Bigatello L, Nishimura M, Imanaka H, et al (1997) Unloading of the work of breathing by pro-portional assist ventilation in a lung model. Crit Care Med 25: 267–272PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1998

Authors and Affiliations

  • J. Mancebo
  • P. Aslanian

There are no affiliations available

Personalised recommendations