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    Effects of age and sleeping position on arousal from sleep in preterm infants

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    Author
    Horne, RSC; Bandopadhayay, P; Vitkovic, J; Cranage, SM; Adamson, TM
    Date
    2002-11-12
    Source Title
    SLEEP
    Publisher
    OXFORD UNIV PRESS INC
    University of Melbourne Author/s
    Vitkovic, Jessica
    Affiliation
    Otolaryngology Eye And Ear Hospital
    Metadata
    Show full item record
    Document Type
    Journal Article
    Citations
    Horne, R. S. C., Bandopadhayay, P., Vitkovic, J., Cranage, S. M. & Adamson, T. M. (2002). Effects of age and sleeping position on arousal from sleep in preterm infants. SLEEP, 25 (7), pp.746-750. https://doi.org/10.1093/sleep/25.7.746.
    Access Status
    This item is currently not available from this repository
    URI
    http://hdl.handle.net/11343/26548
    DOI
    10.1093/sleep/25.7.746
    Description

    C1 - Journal Articles Refereed

    Abstract
    STUDY OBJECTIVES: Preterm infants are at increased risk of sudden infant death syndrome (SIDS). We investigated whether the prone sleeping position impaired arousal from sleep in healthy preterm infants and whether this impairment was related to cardiorespiratory variables, temperature or postnatal age. DESIGN: Longitudinal SETTING/PARTICIPANTS: 14 healthy preterm infants (mean 32 +/- 0.4 weeks) were studied using daytime polysomnography on 4 occasions: 36-38 weeks postconception age, 2 to 3 weeks postterm, 2 to 3 months postterm, and 5 to 6 months postterm. INTERVENTIONS: N/A. MEASUREMENTS: Multiple measurements of arousal threshold (cm H2O) in response to air-jet stimulation applied alternately to the nares were made in both active sleep and quiet sleep when infants slept both prone and supine. RESULTS: Arousal thresholds were significantly higher in both AS and QS when infants slept prone at 36 to 38 weeks postconception age and 2 to 3 months postterm but not at 2 to 3 weeks or 5 to 6 months postterm. These increases were independent of any sleep position-related changes in either rectal or abdominal skin temperature, respiratory rate, oxygen saturation or heart rate. CONCLUSIONS: At the age when the risk of SIDS is highest, the prone position significantly impairs arousal from both active sleep and quiet sleep in healthy infants born prematurely. This impairment in arousability occurred with no clinically significant changes in cardiorespiratory parameters or body temperature. Decreased arousability from sleep in the prone position may explain its role as a risk factor for SIDS.
    Keywords
    Otorhinolaryngology; Hearing; Vision; Speech and Their Disorders

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