Cited by 75Neuroscience of respiration and sleepSleep and Wakefulness ResearchPrenatal Substance Exposure Effects

Altered arousal response in infants exposed to cigarette smoke

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Chang, A B·2003·Archives of Disease in Childhood

Abstract

AIMS: A failure of the arousal mechanism is a key feature in the apnoea theory for sudden infant death syndrome (SIDS). In infants studied at an age when the incidence of SIDS is highest, we evaluated whether in utero smoke exposed infants have altered arousal response to standardised auditory stimuli, and/or sleep pattern, as recorded on overnight complex sleep polysomnography. METHODS: A standardised sequence of audiology stimuli was applied binaurally to 20 in utero smoke and non-smoke exposed infants aged 8-12 weeks during a rapid eye movement (REM) and NREM epoch, in a controlled (temperature, position, pacifier use, noise) sleep environment. Infants were monitored for 10-12 hours using complex sleep polysomnography. RESULTS: Five infants exposed to in utero tobacco smoke did not have behavioural arousal response, whereas all non-smoke exposed infants aroused during NREM (p = 0.016). There was, however, no difference in REM sleep, and the groups did not differ in routine overnight complex sleep polysomnography parameters. CONCLUSION: At the age when the incidence of SIDS is at its peak, infants of smoking mothers are less rousable than those of non-smoking mothers in NREM sleep; this may partly explain why such infants are more at risk of SIDS.

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Crossref · 10.1136/adc.88.1.30

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Authors
Chang, A. B.
Affiliations
The Royal Children's Hospital Foundation (AU)
Corresponding author
Chang, A B
Venue
Archives of Disease in Childhood
Publisher
BMJ
Published
2003-01-01
Volume
88
Issue
1
Pages
30-33
ISSN
  • 0003-9888 (ISSN-L)
  • 1468-2044
OpenAlex
W2068956235
Cited by
75
References
39
Citations by year
2025: 2 · 2023: 1 · 2022: 1 · 2021: 1 · 2020: 2 · 2019: 1 · 2018: 5 · 2017: 2 · 2016: 6 · 2015: 2 · 2013: 2 · 2012: 3
FWCI
1.26
Type
journal article
Language
en
Open access
Locations
  • Archives of Disease in Childhood (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Neuroscience of respiration and sleep
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Prenatal Substance Exposure Effects
Keywords
sudden infant death syndrome, maternal smoking, NREM sleep, REM sleep, sleep architecture, auditory stimuli
MeSH terms
Adult, Arousal, Female, Humans, Infant, Infant, Newborn, Pregnancy, Prenatal Exposure Delayed Effects, Risk Factors, Smoking, Sudden Infant Death, Case-Control Studies, Polysomnography

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