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报告了麻醉与脑活动监测仪(ABM)于全麻术中连续监测脑电活动的结果,对其临床意义予 以评价。69例 ASAI~ Ⅱ级患者,随机分为三组(A组20例、B组20例、C组29例)。分别给予0.65MAC的 安氟醚或异氟醚,并吸入65%N2O、35%O2麻醉。术中连续监测EEG趋势井记录零交叉频率(ZXF)和平 均积分电压(MIV)。结果发现ZXF、MIV随全麻深度的变化呈序列改变。这种变化趋势在摒除了某些干 扰后,与全麻深度基本平行。因此认为ABM连续监测EEG变化趋势对于术期观察全麻深度有重要的 参考价值。但由于ABM本身存在的设计原理方面的局限性,使其计算机量化脑电图(EEGcq)仅能做为 全麻深度监测的辅助手段之一,记录变化趋势比获取瞬间数值更有实用价值。
Reported the results of continuous monitoring of electroencephalogram (EEG) activity performed by anesthesia and brain activity monitor (ABM) during general anesthesia and evaluated its clinical significance. Sixty-nine ASAI-Ⅱ patients were randomly divided into three groups (20 cases in group A, 20 cases in group B, and 29 cases in group C). Respectively given 0.65MAC enflurane or isoflurane, and inhalation of 65% N2O, 35% O2 anesthesia. Intraoperative continuous monitoring of EEG trend wells recorded zero cross frequency (ZXF) and the average integral voltage (MIV). The results showed that ZXF, MIV with sequence changes in depth of change. This trend in the exclusion of some interference, and depth of general anesthesia substantially parallel. Therefore, ABM continuous monitoring of EEG trends for the observation of the depth of anesthesia has an important reference value. However, due to the limitation of design principle, ABM itself can only make EEGcq as one of the auxiliary methods for depth monitoring of general anesthesia. It is more practical to record the changing trend than to obtain the instantaneous value.