Chong, J, Bajpai, R, Teoh, OH, Pugalenthi, A, Allen, JC, Cheng, ZR, Tan, SG, Lim, M, Tan, J, Goh, A, Tan, YH and Thomas, B (2020) Predictive equation for optimal continuous positive airway pressure in children with obstructive sleep apnoea. ERJ Open Research, 6 (2). ISSN 2312-0541

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<jats:sec><jats:title>Aim</jats:title><jats:p>A subgroup of children with obstructive sleep apnoea (OSA) requires treatment with continuous positive airway pressure (CPAP). This study's aims were: 1) to determine if the optimal CPAP for the treatment of OSA in children correlates with body mass index (BMI); 2) to determine the correlation between polysomnographic variables and optimal CPAP in children with OSA; and 3) to develop a CPAP predictive equation for children with OSA.</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>This was a retrospective study of children with OSA who underwent CPAP titration studies. Patients with craniofacial abnormalities (except Down syndrome) and neuromuscular diseases were excluded. Polysomnograms were done using Sandman Elite. Correlations between optimal CPAP, clinical and polysomnographic variables were analysed. A multivariable linear regression model for optimal CPAP was developed.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>198 children (mean±<jats:sc>sd</jats:sc> age 13.1±3.6 years) were studied. Optimal CPAP had a significant positive correlation with age (rho=0.216, p=0.002), obstructive apnoea-hypopnoea index (rho=0.421, p&lt;0.001), 3% oxygen desaturation index (rho=0.417, p&lt;0.001), rapid eye movement respiratory disturbance index (rho=0.378, p&lt;0.001) and BMI z-score (rho=0.160, p=0.024); and a significant negative correlation with arterial oxygen saturation measured by pulse oximetry nadir (rho= −0.333, p&lt;0.001). The predictive equation derived was:</jats:p><jats:p>Optimal CPAP (cmH<jats:sub>2</jats:sub>O)=6.486+0.273·age (years)−0.664·adenotonsillectomy</jats:p><jats:p>(no=1, yes=0)+2.120·Down syndrome (yes=1, no=0)+0.280·BMI z-score.</jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p>The equation developed may help to predict optimal CPAP in children with OSA. Further studies are required to validate this equation and to determine its applicability in different populations.</jats:p></jats:sec>

Item Type: Article
Additional Information: Copyright ©ERS 2020 This article is open access and distributed under the terms of the Creative Commons Attribution Non-Commercial Licence 4.0.
Uncontrolled Keywords: sleep medicine; paediatric pulmonology
Subjects: R Medicine > R Medicine (General)
R Medicine > RA Public aspects of medicine
R Medicine > RC Internal medicine > RC705 Diseases of the respiratory system
Divisions: Faculty of Natural Sciences > School of Computing and Mathematics
Depositing User: Symplectic
Date Deposited: 16 Jun 2020 13:18
Last Modified: 17 Aug 2020 13:22

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