Article

Relationship of bispectral index to hemodynamic variables and alveolar concentration multiples of sevoflurane in puppies.

Department of Animal Medicine and Surgery, Veterinary School of Córdoba, Universtity of Córdoba, Francisco Santisteban Hospital, Campus de Rabanales 14014, Córdoba, Spain.
Research in Veterinary Science (impact factor: 1.65). 11/2008; 86(3):508-13. DOI:10.1016/j.rvsc.2008.09.005 pp.508-13
Source: PubMed

ABSTRACT The relationships between bispectral index (BIS), cardiovascular variables and minimum alveolar concentration (MAC) multiples of sevoflurane in puppies were determined. Five puppies were anesthetized with sevoflurane on two occasions. First, the individual sevoflurane MAC values were determined for each puppy. Secondly, dogs were anesthetized with sevoflurane at each of 5 MAC multiples, 0.75, 1, 1.25, 1.5 and 1.75 MAC administered in random order. Hemodynamic parameters and BIS data were collected for 20min. Somatic stimulus was then applied and the same parameters and data were collected for 6min. Correlation between BIS and end tidal sevoflurane and between BIS and hemodynamic parameters were studied. We found positive significant correlation in both cases. BIS is lower in puppies that in adults at the same alveolar anesthetic concentrations and sevoflurane appears to be a safe anesthetic in puppies.

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Keywords

5 MAC multiples
 
alveolar anesthetic concentrations
 
BIS
 
BIS data
 
bispectral index
 
cardiovascular variables
 
dogs
 
end tidal sevoflurane
 
Hemodynamic parameters
 
individual sevoflurane MAC values
 
MAC
 
minimum alveolar concentration
 
positive significant correlation
 
puppies
 
random order
 
safe anesthetic
 
sevoflurane
 

J Morgaz