Document Detail

Effect of limb cooling on peripheral and global oxygen consumption in neonates.
MedLine Citation:
PMID:  12598504     Owner:  NLM     Status:  MEDLINE    
AIM: To evaluate peripheral oxygen consumption (VO(2)) measurements using near infrared spectroscopy (NIRS) with arterial occlusion in healthy term neonates by studying the effect of limb cooling on peripheral and global VO(2). SUBJECTS AND METHODS: Twenty two healthy term neonates were studied. Peripheral VO(2) was measured by NIRS using arterial occlusion and measurement of the oxyhaemoglobin (HbO(2)) decrement slope. Global VO(2) was measured by open circuit calorimetry. Global and peripheral VO(2) was measured in each neonate before and after limb cooling. RESULTS: In 10 neonates, a fall in forearm temperature of 2.2 degrees C (mild cooling) decreased forearm VO(2) by 19.6% (p < 0.01). Global VO(2) did not change. In 12 neonates, a fall in forearm temperature of 4 degrees C (moderate cooling) decreased forearm VO(2) by 34.7% (p < 0.01). Global VO(2) increased by 17.6% (p < 0.05). CONCLUSIONS: The NIRS arterial occlusion method is able to measure changes in peripheral VO(2) induced by limb cooling. The changes are more pronounced with moderate limb cooling when a concomitant rise in global VO(2) is observed. Change in peripheral temperature must be taken into consideration in the interpretation of peripheral VO(2) measurements in neonates.
I A-A Hassan; Y A Wickramasinghe; S A Spencer
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Archives of disease in childhood. Fetal and neonatal edition     Volume:  88     ISSN:  1359-2998     ISO Abbreviation:  Arch. Dis. Child. Fetal Neonatal Ed.     Publication Date:  2003 Mar 
Date Detail:
Created Date:  2003-02-24     Completed Date:  2003-04-10     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  9501297     Medline TA:  Arch Dis Child Fetal Neonatal Ed     Country:  England    
Other Details:
Languages:  eng     Pagination:  F139-42     Citation Subset:  AIM; IM    
Neonatal Unit, City General Hospital, Stoke on Trent, UK.
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MeSH Terms
Forearm / blood supply
Hypothermia, Induced*
Infant, Newborn / blood,  physiology*
Oxygen / blood
Oxygen Consumption / physiology*
Oxyhemoglobins / metabolism
Regional Blood Flow
Spectroscopy, Near-Infrared
Reg. No./Substance:
0/Oxyhemoglobins; 7782-44-7/Oxygen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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