Airway closure is an underestimated phenomenon reported in hypoxemic respiratory failure under mechanical ventilation, during cardiac arrest, and in patients who are obese. Because airway and alveolar pressure are not communicating, it leads to an overestimation of driving pressure and an underestimation of respiratory system compliance. Airway closure also favors denitrogenation atelectasis. To date, it has been described mainly in patients with ARDS and those with obesity. We describe three cases of airway closure in patients with hydrostatic pulmonary edema caused by cardiogenic shock, highlighting its resolution in a limited period of time (24 h) as pulmonary edema resolved. The waveforms show a biphasic reopening that we refer to as the "uncorking effect". The detection of airway closure may require setting positive end-expiratory pressure at or above the airway opening pressure to avoid the overestimation of driving pressure.

Pozzi, M., Raimondi Cominesi, D., Giani, M., Avalli, L., Foti, G., Brochard, L., et al. (2023). Airway Closure in Patients With Cardiogenic Pulmonary Edema as a Cause of Driving Pressure Overestimation: The “Uncorking Effect”. CHEST, 164(5), 125-130 [10.1016/j.chest.2023.07.008].

Airway Closure in Patients With Cardiogenic Pulmonary Edema as a Cause of Driving Pressure Overestimation: The “Uncorking Effect”

Pozzi M.;Raimondi Cominesi D.;Giani M.;Avalli L.;Foti G.;Bellani G.;Rezoagli E.
2023

Abstract

Airway closure is an underestimated phenomenon reported in hypoxemic respiratory failure under mechanical ventilation, during cardiac arrest, and in patients who are obese. Because airway and alveolar pressure are not communicating, it leads to an overestimation of driving pressure and an underestimation of respiratory system compliance. Airway closure also favors denitrogenation atelectasis. To date, it has been described mainly in patients with ARDS and those with obesity. We describe three cases of airway closure in patients with hydrostatic pulmonary edema caused by cardiogenic shock, highlighting its resolution in a limited period of time (24 h) as pulmonary edema resolved. The waveforms show a biphasic reopening that we refer to as the "uncorking effect". The detection of airway closure may require setting positive end-expiratory pressure at or above the airway opening pressure to avoid the overestimation of driving pressure.
Articolo in rivista - Articolo scientifico
airway closure; cardiogenic shock; hydrostatic pulmonary edema; mechanical ventilation; venoarterial extracorporeal membrane oxygenation;
English
7-nov-2023
2023
164
5
125
130
none
Pozzi, M., Raimondi Cominesi, D., Giani, M., Avalli, L., Foti, G., Brochard, L., et al. (2023). Airway Closure in Patients With Cardiogenic Pulmonary Edema as a Cause of Driving Pressure Overestimation: The “Uncorking Effect”. CHEST, 164(5), 125-130 [10.1016/j.chest.2023.07.008].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/453099
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