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Active Versus Passive Humidification: Efficiency Comparison Between the Methods

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Humidification in the Intensive Care Unit

Abstract

Physiological conditioning of ambient air occurs in the upper airways at a temperature of 37°C and a relative humidity of 100% (absolute humidity 44 mgH2O/l) in the alveoli. During invasive or noninvasive mechanical ventilation dry air is delivered by the ventilator to the patient with high flow and high pressure.

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Abbreviations

CPAP:

Continuous positive airway pressure

HH:

Heated humidifier

HME:

Heat and moisture exchanger

HMEF:

Heat and moisture exchanger and mechanical filter

IMV:

Invasive mechanical ventilation

NIV:

Noninvasive ventilation

p0.1:

Mouth occlusion pressure 0.1 s after start of inspiration

pCO2 :

Partial pressure of carbon dioxide

VAP:

Ventilator-associated pneumonia

WOB:

Work of breathing

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Author information

Authors and Affiliations

  1. Department of Intensive Care Medicine and Long-Term Ventilation, Asklepios Fachkliniken München-Gauting, Robert-Koch-Allee 2, 82131, Gauting, Germany

    Jens Geiseler, Julia Fresenius & Ortrud Karg

Authors
  1. Jens Geiseler
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  2. Julia Fresenius
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  3. Ortrud Karg
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Corresponding author

Correspondence to Jens Geiseler .

Editor information

Editors and Affiliations

  1. Avenida del Parque 2, 3 B, Murcia, 30500, Spain

    Antonio Matías Esquinas

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© 2012 Springer-Verlag Berlin Heidelberg

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Geiseler, J., Fresenius, J., Karg, O. (2012). Active Versus Passive Humidification: Efficiency Comparison Between the Methods. In: Esquinas, A. (eds) Humidification in the Intensive Care Unit. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-02974-5_6

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  • DOI: https://doi.org/10.1007/978-3-642-02974-5_6

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-02973-8

  • Online ISBN: 978-3-642-02974-5

  • eBook Packages: MedicineMedicine (R0)

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