Document Detail

Blood pressure response to tourniquet use in anesthetized horses.
MedLine Citation:
PMID:  2808099     Owner:  NLM     Status:  MEDLINE    
Blood pressure during anesthesia and surgery was compared for 2 groups of horses. Group A, consisting of 23 horses, had a tourniquet placed on the distal portion of a limb. The other group of 20 horses (group B) had surgery of comparable nature and duration as did group-A horses, but a tourniquet was not used. There was a statistical difference (P less than 0.05) in the peak systolic arterial blood pressure between the groups; group-A horses had a mean (+/- SEM) peak of 151 +/- 6 mm of Hg and group-B horses had a peak of 118 +/- 4 mm of Hg. In addition, group-A horses had immediate decrease in blood pressure, coincident with tourniquet deflation. The blood pressure decrease of 23 +/- 3 mm of Hg represented 16% of immediate predeflation blood pressure. Comparable blood pressure decrease was not observed at the end of surgery in group-B horses. Significant difference was not found when other factors that could affect blood pressure were considered. These factors included preanesthetic medication, anesthetic agents, mode of ventilation, pretourniquet inflation blood pressure, and duration of tourniquet inflation. Significant (P less than 0.05) difference in peak blood pressure was observed when the tourniquet was placed on the dependent, compared with the uppermost, limb, with changes more pronounced when the tourniquet was placed on the dependent limb. Tourniquet placement was associated with hypertension, and tourniquet deflation was associated with blood pressure decrease in these anesthetized horses.
V S Copland; S V Hildebrand; T Hill; P Wong; N Brock
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the American Veterinary Medical Association     Volume:  195     ISSN:  0003-1488     ISO Abbreviation:  J. Am. Vet. Med. Assoc.     Publication Date:  1989 Oct 
Date Detail:
Created Date:  1989-11-27     Completed Date:  1989-11-27     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  7503067     Medline TA:  J Am Vet Med Assoc     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1097-103     Citation Subset:  IM    
Department of Veterinary Surgery, University of California, Davis 95616.
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MeSH Terms
Analysis of Variance
Anesthesia, General / veterinary*
Blood Pressure*
Horse Diseases / etiology
Horses / physiology*
Hypertension / etiology,  veterinary
Tourniquets / veterinary*

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

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