Document Detail

Pacifier use modifies infant's cardiac autonomic controls during sleep.
MedLine Citation:
PMID:  15113636     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: The risk for sudden infant death (SIDS) was postulated to decrease with the use of a pacifier and by conditions increasing parasympathetic tonus during sleep. We evaluated the influence of a pacifier on cardiac autonomic controls in healthy infants. STUDY DESIGN: Thirty-four healthy infants were studied polygraphically during one night: 17 infants regularly used a pacifier during sleep and 17 never used a pacifier. Thumb users or occasional pacifier users were not included in the study. The infants were recorded at a median age of 10 weeks (range 6-18 weeks). Autonomic nervous system (ANS) was evaluated by spectral analysis of the heart rate (HR). The high frequency component of HR spectral analysis reflected parasympathetic tonus and the low frequency on high frequency ratio corresponded to the sympathovagal balance. RESULTS: Most infants (63.6%) lost their pacifier within 30 min of falling asleep. Sucking periods were associated with increases in cardiac sympathovagal balance. During non-sucking periods, in both REM and NREM sleep, infants using a pacifier were characterized by lower sympathetic activity and higher parasympathetic tonus compared with non-pacifier users. CONCLUSIONS: The use of pacifiers modifies cardiac autonomic controls during both sucking and non-sucking sleep periods. Non-nutritive sucking could regulate autonomic control in infants. These findings could be relevant to mechanisms implicated in the occurrence of sudden infant deaths during sleep.
Patricia Franco; Sophie Chabanski; Sonia Scaillet; José Groswasser; André Kahn
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Early human development     Volume:  77     ISSN:  0378-3782     ISO Abbreviation:  Early Hum. Dev.     Publication Date:  2004 Apr 
Date Detail:
Created Date:  2004-04-28     Completed Date:  2004-12-14     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7708381     Medline TA:  Early Hum Dev     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  99-108     Citation Subset:  IM    
Sleep and Development Unit, University Children's Hospital Queen Fabiola, Free University of Brussels, Avenue JJ Crocq 15, 1020 Brussels, Belgium.
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MeSH Terms
Autonomic Nervous System / physiology*
Heart / innervation*
Sleep / physiology*
Sleep, REM / physiology
Sudden Infant Death / prevention & control*

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