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  • Title: Oximetry in obese children with sleep-disordered breathing.
    Author: Evangelisti M, Shafiek H, Rabasco J, Forlani M, Montesano M, Barreto M, Verhulst S, Villa MP.
    Journal: Sleep Med; 2016; 27-28():86-91. PubMed ID: 27938925.
    Abstract:
    BACKGROUND: Obesity is an important risk factor for obstructive sleep apnea syndrome (OSAS), and obese children with OSAS have frequently shown oxygen desaturations when compared with normal-weight children. The aim of our study was to investigate the oximetry characteristics in children with obesity and sleep-disordered breathing (SDB). METHODS: Children referred for suspected OSAS were enrolled in the study. All children underwent sleep clinical record (SCR), pulse oximetry, and polysomnography (PSG). RESULTS: A total of 248 children with SDB were recruited (128 obese and 120 normal-weight children). Obese children showed higher oxygen desaturation index (ODI) and lower nadir oxygen saturation (nadir SaO2) compared to non-obese children (p < 0.05). ODI and nadir SaO2 correlated with obesity (p < 0.05). The SCR evaluation showed that deep bite and overjet were more common among obese children (p < 0.05), whereas habitual nasal obstruction and arched palate were more common among non-obese children (p < 0.05). Furthermore, skeletal malocclusion and tonsillar hypertrophy were significant risk factors in obese children associated with severe desaturation (p < 0.05). CONCLUSION: Obese children with SDB have a more significant oxygen desaturation; adeno-tonsillar hypertrophy is not the only important risk factor for its development but also the presence of malocclusions.
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