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題 名 | Short-term Inhalation of Sevoflurane during Induction of General Anesthesia Can Inhibit the A-line ARX Index Response to Intubation: A Randomized Trial=隨機性試驗:全身麻醉誘導期短暫吸入七氟烷(Sevoflurane)能夠抑制A-line ARX參數對於插管的反應 |
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作 者 | 林敬峰; 楊靖宇; 趙尹聖; 李炫昇; 史麗珠; | 書刊名 | 長庚醫誌 |
卷 期 | 34:6 2011.11-12[民100.11-12] |
頁 次 | 頁599-606 |
分類號 | 416.52 |
關鍵詞 | A-line ARX參數; 意識深度; 知覺; 插管; 七氟烷; A-line ARX index; Hypnotic depth; Awareness; Intubation; Sevoflurane; |
語 文 | 英文(English) |
英文摘要 | Background: Monitoring hypnotic depth is used to prevent awareness during general anesthesia. We used the A-line ARX index (AAI) to assess the effect of shortterm inhalation of sevoflurane in the prevention of intubation-induced inadequate hypnotic depth during anesthetic induction. Methods: Thirty patients were randomly divided into the sevoflurane and non-sevoflurane groups, both of which were given 3 μg kg-1 fentanyl, 4 mg kg-1 thiamylal, and 0.2 mg kg-1 cis-atracurium intravenously to induce general anesthesia. The sevoflurane group then inhaled 6% sevoflurane and 4 L/min O2 for 3 minutes, whereas the non-sevoflurane group was given 4 L/min O2 alone. Both groups were intubated 3 minutes after induction. Measurements of the AAI, non-invasive blood pressure, and heart rate were performed every minute, starting 3 minutes prior to induction until 9 minutes after intubation. Results: Intubation induced a significant AAI elevation in the non-sevoflurane group (47.13 20.88, 48.13 20.05, 40.87 15.86 and 31.27 15.26 at 1, 2, 3 and 4 minutes after intubation, respectively, vs. 17.67 6.44 at 3 minutes after induction; p < 0.05), whereas the AAI remained unchanged for the sevoflurane group following intubation. Moreover, the non-sevoflurane group demonstrated higher AAI values after intubation compared with the sevoflurane group. There were no significant differences in blood pressure and heart rate between the two groups throughout the study. Conclusion: Adding 6% sevoflurane with 4 L/min O2 for 3 minutes during the induction period prevented inadequate hypnotic depth caused by intubation but was not sufficient to inhibit fluctuations in hemodynamics. |
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