1.Takizawa, D, Takizawa, E, Miyoshi, S et al. . The effect of ephedrine and phenylephrine on BIS values during propofol anaesthesia. Eur J Anaesthesiol 2006; 23: 654–657.
2.Ishiyama, T, Oguchi, T, Iijima, T, Matsukawa, T, Kashimoto, S, Kumazawa, T. Ephedrine, but not phenylephrine, increases bispectral index values during combined general and epidural anaesthesia. Anesth Analg 2003; 97: 780–784.
3.Bruhn, J, Myles, PS, Sneyd, R, Struys, MMRF. Depth of anaesthesia monitoring: what’s available, what’s validated and what’s next? Br J Anaesth 2006; 97: 85–94.
4.Barr, G, Anderson, RE, Öwall, A, Jakobsson, JG. Effects on the bispectral index during medium–high dose fentanyl induction with or without propofol supplement. Acta Anaesthesiol Scand 2000; 44: 807–811.
5.Myles, PS, Leslie, K, McNeil, J, Forbes, A, Chan, MT. Bispectral index monitoring to prevent awareness during anaesthesia: the B-Aware randomised controlled trial. Lancet 2004; 363: 1757–1763.