Consequences of Pausing Heated Humidification During Invasive Ventilation.

ABSTRACT:

Background

During invasive mechanical ventilation, where medical gases are very dry and the upper airway is bypassed, appropriate gas conditioning and humidification are mandatory at all times. Results of in vitro studies suggest that dry gases may improve lung deposition during nebulization, but this has not been confirmed through in vivo studies. The objective of this study was to measure gas humidity under multiple conditions to better describe gas hygrometry when heated humidifiers are turned off.

Methods

We measured, on a bench, the hygrometry of different gases at steady state: medical gases, at the Y-piece without humidifier, with the humidifier switched off, and with humidifier switched on. We measured gas humidity every 10-60 s during dynamic conditions after switch

SUBMITTER: Lellouche F 

PROVIDER: S-EPMC11469002 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature