Residual upper airway obstruction during nocturnal noninvasive ventilation despite high positive expiratory pressure. Impact of oronasal mask to nasal mask switch - 16/01/24

Abstract |
Background |
Nasal mask (NM) and oronasal masks (OM) can be used to provide noninvasive ventilation (NIV). Recent studies suggested that OM is the most used interface and that there is no difference in efficacy or in tolerance between OM and NM for chronic use. However, studies focusing on video laryngoscopy underlined the impact of OM in residual upper airway obstruction (UAO) under NIV. We sought to assess the real-life practice of switching from OM to NM when UAO events persist despite high EPAP levels.
Methods |
In an open-label single center prospective cohort study, data from files and full night polysomnography on NM and OM were collected for patients wearing OM and presenting an UAO index ≥15/h despite an EPAP level ≥ 10 cmH20.
Results |
Forty-four patients were included in the study. In 31 patients (74 %), switching to a NM reduced UAOi to ≥10/h. Interestingly, 92 % of these patients still had NM at 3 to 12 months of follow-up. Switching to a NM was also associated with a trend in paCO2 reduction and significant improvements in Epworth, sleep quality and NIV compliance. Successful interface switching was significantly associated with female gender, and a trend was observed in non-smokers.
Conclusion |
As for CPAP, switching to a NM improved NIV efficacy in a selected group of patients presenting residual UAO events despite high EPAP levels. Additionally, this switch has an impact on compliance and subjective sleepiness. Thus, in patients with persisting UAO on OM, switching to a NM could be a first-line intervention before considering further investigation such as polygraphy or video laryngoscopy. We also derive an algorithm for mask allocation and adaptation in acute and chronic NIV use.
Le texte complet de cet article est disponible en PDF.Graphical abstract |
Highlights |
• | Residual upper airway obstructions despite high EPAP levels impairs NIV treatment. |
• | Switching from oronasal to a nasal mask often improves non invasive ventilation in this case. |
• | It also improve also compliance and subjective sleepiness. |
• | It could be a first-line intervention before investigation such as polygraphy or laryngoscopy. |
Keywords : NIV, Non invasive ventilation, Mask, Interface, Residual obstruction
Abbreviations : ALS, BMI, COPD, CT, EPAP, FEV1, FVC, FSI, IPAP, MAS, MRI, NIV, NM, OHS, OM, OSA, paCO2, SSI, TST, UA, UAO, UAOi
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Vol 85
Article 101083- juin 2024 Retour au numéroBienvenue sur EM-consulte, la référence des professionnels de santé.
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