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The Application of Quantitative Electroencephalography (Spectral Edge Frequency 95) to Evaluate Sedation in Dogs  

Kim Min-Su (Department of Veterinary Surgery, College of Veterinary Medicine, Seoul National University)
Nam Tchi-Chou (Department of Veterinary Surgery, College of Veterinary Medicine, Seoul National University)
Publication Information
Journal of Veterinary Clinics / v.23, no.1, 2006 , pp. 31-35 More about this Journal
Abstract
This study was performed to evaluate sedation with quantitative electroencephalography (EEG) analysis in dogs. EEG is used to evaluate objectively the effects of CNS acting with brain and behavioral changes. Especially, spectral edge frequency 95 (SEF 95) parameter is an effective method to determine the sedative status. The SEF 95 is the frequency below 95% of the total power. Twelve healthy intact male Miniature Schnauzer dogs, which did not show any neurological abnormalities and disease, were used for the study. EEG electrodes were inserted in subcutaneous tissue over the calvaria without entering adjacent muscles. The EEG data were acquired and analyzed by EEG raw wave and spectral edge frequency 95 analysis. After the administration of sedatives, the SEF 95 values were shown the significant changes compared with the normal state In all groups (p<0.05). It is suggested that SEF 95 analysis is useful method for assessing the state of sedation in dogs.
Keywords
dogs; electroencephalography; sedation; spectral edge frequency;
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