Controlled Modes

  • Jean-Michel Arnal


In volume control mode, inspiratory pressure curve shows the resistances and compliance of the respiratory system and suggests tidal recruitment or tidal lung overdistension. Plateau pressure is measured by an end-inspiratory occlusion to assess end-inspiratory alveolar pressure. There are several pitfalls in interpreting end-inspiratory occlusion curve. Driving pressure is another important variable to monitor. In pressure control mode, inspiratory flow curve depends on the time constant of the respiratory system. It is used to optimize inspiratory time. Plateau pressure and driving pressure are also important to monitor.

Supplementary material

Video 2.1

Pressure curve in VC (AVI 235029 kb)

Video 2.2

Flow pattern in VC (AVI 516134 kb)

Video 2.3

End-inspiratory occlusion in VC (AVI 179727 kb)

Video 2.4

Driving pressure in VC (AVI 315671 kb)

Video 2.5

Flow curve in PC (AVI 435490 kb)

Video 2.6

Inspiratory time in PC (AVI 813376 kb)

Video 2.7

End-inspiratory occlusion in PC with end-inspiratory flow at zero (AVI 200463 kb)

Video 2.8

End-inspiratory occlusion in PC with end-inspiratory flow positive (AVI 205073 kb)

Video 2.9

Driving pressure in PC (AVI 313368 kb)

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Copyright information

© Springer International Publishing AG 2018

Authors and Affiliations

  • Jean-Michel Arnal
    • 1
    • 2
  1. 1.Service de Réanimation PolyvalenteHopital Sainte MusseToulonFrance
  2. 2.Applied Research and New TechnologyHamilton Medical AGBonaduzSwitzerland

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