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Assessment of Swallowing Function in Healthy Adults While Using High-Flow Nasal Cannula
Alexander E Graf1, Alla Mehl2, Amelia De Costa2
1Department of Otolaryngology, SUNY Downstate Health Sciences University, Brooklyn, USA.
Summary
High flow nasal cannula (HFNC) use does not significantly impact swallowing safety in healthy individuals. Swallowing function remained largely unaffected even at high HFNC flow rates, suggesting safe use during respiratory support.
Area of Science:
- Medicine
- Physiology
- Otolaryngology
Background:
- High flow nasal cannula (HFNC) is widely used for respiratory support.
- The impact of HFNC on swallowing physiology and safety is not well understood.
- Establishing safe HFNC flow rates for swallowing is crucial.
Purpose of the Study:
- To assess the effect of varying HFNC flow rates on swallowing function and safety in healthy individuals.
- To determine if high flow rates diminish swallowing safety.
Main Methods:
- Flexible Endoscopic Evaluation of Swallowing (FEES) was used to assess swallowing function.
- Healthy participants underwent swallowing trials with different food consistencies at HFNC rates of 0, 30, 40, 50, and 60 LPM.
- Swallowing safety was evaluated using the Penetration-Aspiration Scale (PAS).
Main Results:
- Swallowing safety was high across all tested HFNC flow rates and consistencies.
- No significant correlation was found between HFNC flow rate and swallowing safety (P > 0.05).
- A small percentage of unsafe swallows occurred with thin liquids at 60 LPM.
Conclusions:
- High flow nasal cannula (HFNC) does not significantly affect the rate of aspiration in healthy individuals.
- Swallowing safety appears to be maintained even at high HFNC flow rates.
Keywords:
aspirationdysphagiafiberoptic endoscopic evaluation of swallowinghigh flow nasal cannulapenetrationMore Related Videos
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