6Derbyshire DR, Chmielewski A, Fell D, et al.Plasma catecholamine responses to tracheal intubation. Br J Anesth, 1983,55(9): 855~ 60.
7Santiveri X, Ledesma M.Urapidil in anesthesiology: pharmacology and indications. Rev Esp Anestesiol Reanim, 1998,45(5):189~94.
8Santiveri X, Ledesma M, Delas F, et al. Comparison of lidocaine and urapidil for prevention of hemodynamic response to tracheal intubation in patients in general good health. Rev Esp Anestesiol Reanim, 1998, 45(2): 46~ 9.
9Stones JG, Fox P, Sear JW, et al. Risk of myocardial ischemis during anesthesia in treated and untreated hypertension patients. Br J Anesth, 1988, 61:675~9.
10Figueredo E,Garcia-Fuentes EM.Assessment of the efficacy of esmolol on haemodynamic changes induced by laryngoscopy and tracheal intubation a meta-analysis. Acta Anesthesiol Scand, 2001, 45(8): 1011~5.