Abstract
The purposes of this study were: (1) to confirm the prevalence of sleep-disordered breathing (SDB) in Japanese children using nocturnal pulse oximetry (NPOx) as a screening tool and (2) to examine what kind of parameters are suitable for the evaluation of SDB in children. We conducted a study of 99 children between 4 and 15-year-old and obtained their demographic characteristics and the presence of SDB-related symptoms by questionnaire from their parents. In our study, 36% had been Down syndrome (DS), 25% had cardiovascular disease and 34% had dental/oral abnormality. As SDB-related symptoms, snoring (35%), awake disturbance (48%), arousal (41%) and nocturia (19%) were reported. We analyzed each parameter based on the previous reported data of children and temporary defined normal range as follows; 3%ODI < 2.04, 4%ODI < 0.78, SpO2 nadir > 89% and McGill oximetry score = 1. In non-DS group, each parameter showed abnormal value especially in younger group (abnormality; 61–94%), but the abnormality was decreased during the growth (abnormality; 11–63%). Interestingly, in DS group the value of each parameter was kept on abnormal during the growth (abnormality; 55–100%). We investigated the correlation between McGill oximetry score and ODI or SpO2 nadir. There was a significant positive correlation between McGill oximetry score and 3% or 4% ODI. Moreover, there was a significant negative correlation between McGill oximetry score and SpO2 nadir. Based on NPOx screening, prevalence of SDB was high; however, it was decreased during the growth in non-DS group. Each parameter might be useful for SDB screening in children.
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Acknowledgements
The authors thank Ms. Yukiko Yamamoto, Oshima nursing school for technical support and the school staff, children, and their parents for their cooperation and participation. This research was supported by a Grant from Fukuda Foundation for Medical Technology.
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This study was funded by Fukuda Foundation for Medical Technology.
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Tomoko Nao declares that I have no conflict of interest. Anita Rahmawati declares that she has no conflict of interest. Mari Nishizaka declares that she has no conflict of interest. Hiroyuki Sawatari declares that he has no conflict of interest. Nobuko Moriyama declares that she has no conflict of interest. Akiko Chishaki declares that she has no conflict of interest. Shin-Ichi Ando declares that he has no conflict of interest. Tomoko Ohkusa declares that she has no conflict of interest.
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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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All procedures were in accordance with the Ethical Committee of Ube Frontier University (approved no. 15004).
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Nao, T., Rahmawati, A., Nishizaka, M. et al. Prevalence of sleep-disordered breathing in Japanese children: efficiency of screening with nocturnal pulse oximetry. Sleep Biol. Rhythms 18, 37–47 (2020). https://doi.org/10.1007/s41105-019-00242-z
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DOI: https://doi.org/10.1007/s41105-019-00242-z