Interpretation of airway pressure waveforms

  • Evans R. Fernández-Pérez
  • Rolf D. Hubmayr


Most mechanical ventilators display tracings of airway pressure (Paw) volume (V) and flow (V? ). In volume preset modes, Paw informs about the mechanical properties of the respiratory system and about the activity of respiratory muscles acting on the system. When monitoring ventilator waveforms, it is important to appropriately scale the tracing so that nuances in time profiles may be appreciated. In this short monograph, we offer three examples of how clinicians may use this information for patient assessment and care.


Respiratory System Gray Shade Area Injurious Ventilator Elastic Pressure Respiratory System Elastance 
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  1. 1.
    de Chazal I, Hubmayr RD. Novel aspects of pulmonary mechanics in intensive care. Br J Anaesth. 2003;91:81–91.PubMedCrossRefGoogle Scholar
  2. 2.
    Grasso S, Terragni P, Mascia L, Fanelli V, Quintel M, Herrmann P, Hedenstierna G, Slutsky AS, Ranieri VM. Airway pressure-time curve profile (stress index) detects tidal recruitment/hyperinflation in experimental acute lung injury. Crit Care Med. 2004;32:1018–1027.PubMedCrossRefGoogle Scholar
  3. 3.
    Brochard L. Intrinsic (or auto-) PEEP during controlled mechanical ventilation. Intensive Care Med.. 2002;28:1376–1378.PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Evans R. Fernández-Pérez
    • 1
  • Rolf D. Hubmayr
    • 1
  1. 1.Mayo Clinic College of MedicineRochesterUSA

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