Document Detail

Increase in skin temperature after spinal anesthesia in infants.
MedLine Citation:
PMID:  17138194     Owner:  NLM     Status:  MEDLINE    
BACKGROUND AND OBJECTIVES: The relatively stable hemodynamics during spinal anesthesia in infants have been attributed to a less active sympathetic nervous system in comparison with adults. Thus, the authors evaluated sympathetic block primarily by measurement of skin temperature and secondarily by determination of noninvasive blood pressure as an indirect sign of sympatholysis. METHODS: In 15 infants (postconceptual age: 45.0 +/- 4.8 weeks; weight: 4.0 +/- 1.2 kg) scheduled for repair of inguinal hernia under spinal anesthesia, skin temperature at the T4 level and at the plantar foot was measured before and after spinal anesthesia. Spinal anesthesia was induced at the L4/L5 interspace with 0.5% hyperbaric bupivacaine 1 mg/kg with 10 microg/kg adrenaline added. RESULTS: Temperature at the plantar foot after spinal anesthesia rose significantly from 33.0 degrees C +/- 1.3 degrees C to 34.7 degrees C +/- 1.4 degrees C within 10 minutes and to 35.6 degrees C +/- 0.9 degrees C after 20 minutes (P < .0001), whereas the temperature at the thorax remained constant at 35 degrees C to 36 degrees C. Systolic and diastolic blood pressure decreased by 15.9 +/- 11.4 mm Hg and 9.0 +/- 9.2 mm Hg, respectively (P < .01), but remained within normal range in all cases. CONCLUSIONS: The authors found a significant increase in skin temperature of the feet within 10 minutes as a sign of sympatholysis, whereas trunk temperature remained constant. Blood pressure decreased but remained within the normal range, despite the observed sympatholysis.
Martin Jetzek-Zader; Henning Hermanns; Rainer Freynhagen; Peter Lipfert; Markus F Stevens
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Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  Regional anesthesia and pain medicine     Volume:  31     ISSN:  1098-7339     ISO Abbreviation:  Reg Anesth Pain Med     Publication Date:    2006 Nov-Dec
Date Detail:
Created Date:  2006-12-01     Completed Date:  2007-02-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9804508     Medline TA:  Reg Anesth Pain Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  519-22     Citation Subset:  IM    
Department of Anesthesiology, University of Düsseldorf, Düsseldorf, Germany.
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MeSH Terms
Anesthesia, Spinal*
Anesthetics, Local / administration & dosage,  pharmacology*
Autonomic Nerve Block*
Blood Pressure / drug effects
Bupivacaine / administration & dosage,  pharmacology*
Foot / blood supply
Gestational Age
Heart Rate / drug effects
Hernia, Inguinal / surgery
Infant, Newborn
Infant, Premature
Injections, Spinal
Regional Blood Flow / drug effects
Skin Temperature / drug effects*
Sympatholytics / pharmacology
Thorax / blood supply
Time Factors
Vasomotor System / drug effects*
Reg. No./Substance:
0/Anesthetics, Local; 0/Sympatholytics; 2180-92-9/Bupivacaine

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

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