Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6484246 | Biocybernetics and Biomedical Engineering | 2017 | 7 Pages |
Abstract
When 2.5 and 3.0Â mm ID ETTs were examined, laminar flow (Re <2300) across the tube was observed, and there were no clinically significant differences in the ventilation parameters between non-siliconised and siliconised tubes. Whereas, when 4Â mm ID ETTs were tested, turbulent flow was observed, and PIP, Rins, Rexp and WOBvt were significantly lower (5%, 17%, 17%, and 7%, respectively) (PÂ <Â 0.05), but PIF and PEF were significantly higher (8%, 14%) (PÂ <Â 0.05). Thus, the silicone inner surface of ETT offers less resistance and WOBvt in presence of turbulent flow. However, artifacts observed on the surface of non-siliconised and siliconised ETTs can potentially impair ventilation.
Keywords
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Bioengineering
Authors
Barbara Stankiewicz, Marcin Rawicz, Marek Darowski, Krzysztof Zielinski, Maciej Kozarski, Andrzej Chwojnowski,