Document Detail

Apnoea-associated heart rate changes among preterm and full-term infants exposed to hyperthermia.
MedLine Citation:
PMID:  9715759     Owner:  NLM     Status:  MEDLINE    
Heart rate (HR) changes associated with apnoea (> 3 s) were analysed in 10 preterm infants (30.6 +/- 1.5 weeks) at post-conceptional age of 40 +/- 1.5 weeks and 10 full-term (FT) infants (39 +/- 1 weeks) before, during and after exposure to increased environmental temperature (5 degrees C above normothermia). A significantly increased HR was found in the study group during the baseline (normothermia), heating, cooling and final normothermic phase compared with the control infants. No significant difference was found between the groups during the hyperthermic stage. A significant relative increase in HR was found among the preterm infants but not among FT infants during central apnoea at the hyperthermia phase. Our results indicate that HR control during apnoea in preterm infants is more labile then among FT infants while being exposed to increased environmental temperature.
E Tirosh; D Bader; H Hodgins; A Cohen; Y Tal
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Clinical physiology (Oxford, England)     Volume:  18     ISSN:  0144-5979     ISO Abbreviation:  Clin Physiol     Publication Date:  1998 Jul 
Date Detail:
Created Date:  1998-11-06     Completed Date:  1998-11-06     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  8309768     Medline TA:  Clin Physiol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  331-5     Citation Subset:  IM    
Pediatric Department, Bnai Zion Medical Center, Technion-Israel Institute of Technology, Haifa, Israel.
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MeSH Terms
Apnea / physiopathology*
Body Temperature / physiology*
Cohort Studies
Gestational Age
Heart Rate / physiology*
Hot Temperature*
Infant, Newborn / physiology*
Infant, Premature / physiology*

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