The assessment of anesthetic depth by quantitative electroencephalography in intravenous anesthesia by intermittent bolus injection
2005
Lee, S.H. (Konkuk University, Seoul, Republic of Korea) | Bae, C.S. (Chonnam National University, Gwangju, Republic of Korea) | Noh, G.J. (University of Ulsan College of Medicine, Seoul, Republic of Korea) | Kim, J.Y. (Konkuk University, Seoul, Republic of Korea) | Chung, B.H. (Konkuk University, Seoul, Republic of Korea), E-mail: chungbh@konkuk.ac.kr | Bae, K.S. (University of Ulsan College of Medicine, Seoul, Republic of Korea)
To assess anesthetic depth using quantitative electroencephalography (q-EEG), we recorded processed EEG (raw EEG) till 100 minutes in beagle dogs anesthetized for 60 minutes with tiletamine/zolazepam (n=5, TZ group), xylazine/ketamine (n=5, XK group) and propofol (n=5, PI group) by intermittent bolus injection. Raw EEG was converted into 95% spectral edge frequency (SEF) and median frequency (MF) through fast fourier transformation (FFT) method. 95% SEF value of TZ group was significantly higher (p less than 0.05) than the XK group from 10 minutes to 100 minutes. 95% SEF value of PI group was significantly higher (p less than 0.05) than the XK group from 10 minutes to 40 minutes, and significantly low (p less than 0.05) than XK group at 90 and 100 minutes.
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