<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> BIS是新近用于临床麻醉的一项监测手段,已有许多文献将其与其他脑电参数、如SEF、MF等比较,发现它在监测镇静水平和麻醉恢复期的意识变化方面,优于其他的脑电参数[10,11]。本试验也发现,单用异丙酚作为诱导用药。BIS、SEF和MF等各项脑电参数均可反映病人自清醒向意识消失和睫毛反射消失的变化,尽管SEF MF变化的幅度较小,个体差异较大。加用芬太尼后,BIS仍可很好地显示这些改变,而SEF和MF却已不能明确地显示。这些结果和前述文献报道均提示,BIS与另两项脑电参数比较,在反映中枢抑制程度变化方面,更为敏感、准确。 参考文献 1. Moffat AC,M urray AW,FitchW. Opioid supp lementation during propofo lanaesthesia. A naesthesia,1998,44:644-647. 2. Smith C,McEwan A I,Jhareri R,et al. The interaction of fentanylon the Cp50 of propofol for loss of consciousness and skin incision. A nesthesio logy,1994,81:820-828. 3. Flaishon R,Sebel PS,Sigl J. Bispectral analysis of the EEG for monito ring the hypno tic effect of propofol and p ropofol/alfentanil. A nesthesio logy,1995,83(3A) A 514-515. 4. Bailey PL,Stanley TH. Intravenous op io id anesthetics. In:M iller RD,ed. A nesthesia. 4th edn. N ew Yo rk:Church ill L ivingstone,1994.291-387. 5. L eslie K,Sessler D I,Sm ith WD,et al. P rediction of movement during p ropofo l?n itrous oxide anesthesia. A nesthesio logy,1996,84:52-63. 6. Dunnet JM,P rys2Roberts C,Ho lland DE,et al. P ropofo l infusion and the supp ression of consciousness:do se requirement to induce lo ss of consciousness and to supp ress response to noxious and non2noxious stimuli. Br J A naesth,1994,72:29-341 7. Dunnet JM,P rys-Roberts C,Davy SH. The effects of age on p ropofo l do se response curves fo r consciousness? unconsciousness. In:P rys2Roberts C,ed. Focus on infusion- intravenous anaesthesia. London:CurrentM edical L iterature L td,1991. 93-95. 8. V uyk J,Engbers FHM,L emmens HJM,et al. Pharmacodynam ics of p ropofo l in female patients. A nesthesio logy,1992,77:3-9. 9. N aguibM,Sari2Kouzel A,SeralM,et al. Induction do se2response studies w ith p ropofo l and th iopentone. Br J A naesth,1992,68:308-310. 10. L iu J,Singh H,W h ite PF. Electroencephalogram bispectral analysis p redicts the dep th of m idazo lam2induced sedation. A nesthesio logy,1996,84:64-69. 11. Do i M,Cajraj RJ,M antzaridis H,et al. Relationsh ip between calculated blood concentration of p ropofo l and electrophysio logical variables during emergence from anaesthesia:comparison of bispectral index,spectral edge frequency,median frequency and audito ry evoked po tential index,Br J A naesth,1997,78:180-184. |