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Use of pulse oximetry to screen for infant obstructive sleep apnoea
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  • Cheuk Ting Andy Hou,
  • Eric Yat-tung Chan,
  • Ka-Li Kwok,
  • Mei Yee Lau,
  • Shuk Yu Leung
Cheuk Ting Andy Hou
Kwong Wah Hospital

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Eric Yat-tung Chan
Kwong Wah Hospital
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Ka-Li Kwok
Kwong Wah Hospital
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Mei Yee Lau
Kwong Wah Hospital
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Shuk Yu Leung
Kwong Wah Hospital
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Abstract

Introduction: Pulse oximetry is currently used to screen for obstructive sleep apnoea (OSA) in children. However, its use in infant has not yet been well studied. Aim: To develop a screening criterion using pulse oximetry to identify infant with probable OSA. Methods: A retrospective cross-sectional study including infants <1 year of age with features of upper airway obstruction or requiring home oxygen, to find associations between obstructive apnoea hypopnoea index (OAHI) in infant polysomnography (PSG) and parameters in pulse oximetry by Spearman Rho’s correlation. And using the parameter with strongest correlation, by receiver-operating characteristic (ROC) curve to identify a cut-off with highest Youden index to screen for probable OSA (OAHI >2 per hour). Results: A total of 27 infants were studied. The index of oxygen desaturation with SpO2 <90% per sampled hour (ODI<90%) had the best correlation with OAHI (r = 0.52, p = 0.005). Using the cut-off of ODI<90% more than 1.3 per hour, the sensitivity and specificity for identifying OAHI >2 per hour was 77% and 71% respectively. Conclusion: Infant pulse oximetry can be a useful tool to screen for probable infant OSA especially for paediatric units not offering infant PSG service.
2021Published in Pediatric Respirology and Critical Care Medicine volume 5 issue 4 on pages 70. 10.4103/prcm.prcm_3_22