Document Detail

Biobehavioral pain responses in former extremely low birth weight infants at four months' corrected age.
MedLine Citation:
PMID:  10617743     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To compare biobehavioral responses to acute pain at 4 months' corrected age between former extremely low birth weight (ELBW) infants and term-born controls. METHODOLOGY: Measures of facial behavioral and cardiac autonomic reactivity in 21 former ELBW infants (mean birth weight = 763 g) were compared with term-born infants (n = 24) during baseline, lance, and recovery periods of a finger-lance blood collection. Further, painful procedures experienced during neonatal care were quantified in both groups. RESULTS: Overall, behavioral and cardiac autonomic responses to the lance were similar between groups. However, the ELBW group seemed to have a less intense parasympathetic withdrawal in the lance period and a more sustained sympathetic response during recovery than the control group. Further, in the recovery period, two behavioral patterns (early recovery and a late recovery) were apparent among the ELBW group. CONCLUSIONS: Biobehavioral pain responses were similar overall between both groups of infants. Subtle differences were observed in cardiac autonomic responses during the lance period and in behavioral recovery among ELBW infants. Whether these findings represent a long-term effect of early pain experience or a developmental lag in pain response remains unclear. The lack of an overall difference runs counter to previously reported findings of reduced behavioral response in former ELBW infants. biobehavioral pain response, premature infants, repetitive pain, heart rate variability.
T F Oberlander; R E Grunau; M F Whitfield; C Fitzgerald; S Pitfield; J P Saul
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Pediatrics     Volume:  105     ISSN:  1098-4275     ISO Abbreviation:  Pediatrics     Publication Date:  2000 Jan 
Date Detail:
Created Date:  2000-01-14     Completed Date:  2000-01-14     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0376422     Medline TA:  Pediatrics     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  e6     Citation Subset:  IM    
Department of Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada.
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MeSH Terms
Blood Specimen Collection / adverse effects
Case-Control Studies
Heart Rate
Infant Behavior*
Infant, Newborn / physiology,  psychology
Infant, Very Low Birth Weight / physiology,  psychology*
Pain / physiopathology,  psychology*

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