Onaka M, Akatsuka M, Takayama R, Mori H, Yamamoto H
Department of Anesthesiology, Osaka Medical College, Takatsuki 569-8686.
Masui. 2001 Mar;50(3):265-9.
Spectral edge frequency 90 (SEF 90) and relative power in four frequency bands (beta, alpha, theta, delta) of the processed electroencephalogram were recorded in 20 patients undergoing elective gynecological surgery under total intravenous anesthesia (propofol-ketamine-fentanyl) (group PKF, n = 10) or nitrous oxide-oxygen-isoflurane (group GOI, n = 10) anesthesia. During anesthesia, mean SEF 90 and relative beta power increased more significantly in group PKF than in group GOI. At emergence from anesthesia, SEF 90 was 21.8 Hz in group PKF and 20.5 Hz in group GOI. These results suggest that it is difficult to evaluate the depth of anesthesia using pEEG under PKF anesthesia.
在20例行择期妇科手术的患者中，记录了在全静脉麻醉（丙泊酚 - 氯胺酮 - 芬太尼）（PKF组，n = 10）或氧化亚氮 - 氧气 - 异氟烷麻醉（GOI组，n = 10）下处理后的脑电图的频谱边缘频率90（SEF 90）和四个频段（β、α、θ、δ）的相对功率。麻醉期间，PKF组的平均SEF 90和相对β功率比GOI组增加得更显著。麻醉苏醒时，PKF组的SEF 90为21.8Hz，GOI组为20.5Hz。这些结果表明，在PKF麻醉下使用脑电图评估麻醉深度是困难的。
