The Impact of High-Flow Nasal Oxygen Therapy on Swallowing Function and Aspiration
Author Information
Author(s): Muacevic Alexander, Adler John R, Sugishima Kan, Sakuramoto Hideaki, Oyama Yusuke, Ouchi Akira, Kaneko Kentaro, Fukunaga Takuto, Uchi Michiko, Aikawa Gen
Hypothesis
How does HFNO affect the swallowing function and is it a risk factor for aspiration pneumonia?
Conclusion
Increased flow rates of HFNO affect swallowing function, but the actual impact on patients is currently unknown.
Supporting Evidence
- Six studies investigated the effects of flow rate on swallowing function.
- None of the studies reported that HFNO increases the incidence of pneumonia.
- The latency time of swallowing response decreased with increasing inspiratory flow rate.
- Choking or coughing was observed at higher flow rates.
- Four studies compared pneumonia incidence rates between HFNO and conventional oxygen therapy.
Takeaway
This study looked at how high-flow nasal oxygen therapy affects swallowing and if it can cause problems like choking. It found that higher flow rates can change how we swallow, but we need more research to understand the effects on patients.
Methodology
This scoping review analyzed studies from various databases to assess the effects of HFNO on swallowing function and aspiration pneumonia.
Potential Biases
Potential bias due to the limited number of studies on patients and the focus on healthy adults.
Limitations
Most studies involved healthy participants, and the effects on actual patients with dysphagia remain unclear.
Participant Demographics
The review included both healthy adults aged 20-50 and patients aged 50-90.
Digital Object Identifier (DOI)
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