1Pincus SM.Approximate entropy as a measure of system complity.Proc Natl Acad Sci USA,1991,88:2297-2301.
2Mantzaridis H,Kenny GN.Auditory evoked potential index:a quantitative measure of changes in auditory evoked potentials during general anaesthesia.Anaesthesia,1997,52:1030-1036.
3Bruhn J,Bouillon TW,Radulescu L,et al.Correlation of approximate entropy,bispectral index,and spectral edge frequency 95 (SEF95) with clinical signs of "anesthetic depth"during coadministration of propofol and remifentanil.Anesthesiology,2003,98:621-627.
4Schmidt GN,Bischoff P,Standl T,et al.Comparative evaluation of the Datex-Ohmeda S/5 Entropy Module and the Bispec tral Index monitor during propofol-remifentanil anesthesia.Anesthesiology,2004,1283-1290.
5Hans P,Dewandre PY,Brichant JF et al.Effects of nitrous oxide on spectral entropy of the EEG during surgery under balanced anaesthesia with sufentanil and sevoflurane.Acta Anaesthesiol Belg,2005,56:37-43.
6Anderson RE,Jakobsson JG.Entropy of EEG during anaesthetic induction:a comparative study with propofol or nitrous oxide as sole agent.BrJ Anaesth,2004,92:167-170.
7Muncaster AR,Sleigh JW,Williams M.Changes in consciousness,conceptual memory,and quantitative electroencephalo graphical measures during recovery from sevoflurane and remifentanil-based anesthesia.Anesth Analg,2003,96:720-725.
8Iannuzzi M,Iannuzzi E,Rossi F,et al.Relationship between bispectral index,electroencephalographic state entropy and effectsite EC50 for propofol at different clinical endpoints.Br J Anaesth,2005,94:613-616.
9Bruhn J,Bouillon TW,Shafer SL.Onset of propofol-induced burst suppression may be correctly detected as deepening of anaesthesia by approximate entropy but not by bispectral index.Br J Anaesth,2001,87:505-507.
10Bruhn J,Ropcke H,Hoeft A.Approximate entropy as an electroencephalographic measure of anesthetic drug effect during desflurane anesthesia.Anesthesiology,2000,92:715-726.
7Sebel PS, Bowdle TA. Ghoneim MM, et al. The incidence of awareness during anesthesia: a multicenter United States study. Anesth Analg, 2004, 99(3): 833-839.
8Barr G, Anderson R, Jakobsson J. The effects of nitrous oxide of the auditory evoked potential index during sevoflurane anaesthesia. Anaesthesia, 2002, 57 (8) : 736-739.
9Coste C, Guignard B, Meniqaux C, et al. Nitrous oxide prevents movement during orotracheal intubation without affecting BIS value. Anesth Analg, 2000, 91 ( 1 ) : 130-135.
10Bruhn J, Kreuer S, Bischoff P. Bispectral index and A-line AAI index as guidance for desflurane-remifentanil anaesthesia compared with a standard practice group : a multicentre study. Br J Anaesth, 2005, 94- (1) : 63-69.