Published in:
01-12-2020 | What's New in Intensive Care
What’s new about pulmonary hyperinflation in mechanically ventilated critical patients
Authors:
Theodoros Vassilakopoulos, Dimitrios Toumpanakis, Jordi Mancebo
Published in:
Intensive Care Medicine
|
Issue 12/2020
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Excerpt
Pulmonary hyperinflation is the increase in the relaxation volume of the respiratory system at the end of a tidal expiration (end-expiratory volume). This can occur due to a number of factors, acting alone or in combination, such as increased expiratory resistance impeding lung emptying (more pronounced in the presence of expiratory flow limitation in obstructive airway diseases, but also in acute respiratory distress syndrome (ARDS) and obesity), reduced lung recoil pressure (emphysema), increased minute ventilation and ventilatory demand, insufficient expiratory time, or over-support during the preceding inspiration leading to increased end-inspiratory volume and thus larger tidal volume to exhale [
1]. …