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Updated: Oct 9, 2025

A Novel Rescue Technique for Difficult Intubation and Difficult Ventilation
Published on: January 17, 2011
How to eat, drink and speak on non-invasive ventilation
William Kinnear1, Karah Dring1, Katherine Kinnear2
1Department of Sport Science, School of Science and Technology, 6122Nottingham Trent University, Nottingham, UK.
Individuals with neuromuscular disorders on non-invasive ventilation (NIV) can eat and drink orally. Despite challenges like prolonged chewing and swallowing times, they maintain nutrition and hydration while using NIV. Cough-assist is recommended post-meal.
Area of Science:
- Neurology
- Respiratory Medicine
- Rehabilitation
Background:
- Non-invasive ventilation (NIV) is crucial for managing respiratory muscle weakness in neuromuscular disorders.
- Maintaining oral intake is vital for hydration and nutrition but can be challenging for ventilator-dependent individuals.
Purpose of the Study:
- To investigate the oral intake capabilities of individuals with non-bulbar neuromuscular disorders using NIV.
- To assess the impact of NIV on the mechanics of eating and drinking.
Main Methods:
- Observational study comparing six individuals with non-bulbar neuromuscular disorders on NIV to age- and sex-matched controls.
- Analysis of chewing and swallowing times, swallow frequency, and interaction with NIV breaths during oral intake.
- Assessment of speech efficiency in terms of words spoken between NIV breaths.
Main Results:
- Individuals with neuromuscular disorders on NIV exhibited significantly prolonged chewing (median 44 vs. 15 chews) and swallowing times (median 37 vs. 14.5 seconds).
- Multiple swallows per mouthful were common in the neuromuscular group, and they blocked NIV breaths during eating and swallowing.
- Speech was less fluent, with fewer words spoken between NIV breaths (median 5 vs. 11 words).
Conclusions:
- Individuals with neuromuscular disorders can maintain oral nutrition and hydration while using NIV, despite altered chewing and swallowing patterns.
- Careful management of NIV timing and consideration of cough-assist are important for safe oral intake.
- Further research into strategies to optimize eating and drinking for ventilator-dependent individuals is warranted.
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