AIM:To observe the effect of dexmedetomidine on hemodynamics in hypertensive patients during endotracheal intubation.METHODS:Forty hypertensive patients receiving tracheal intubation under general anaesthesia were randomly allocated into two groups(20 cases each),and group D and group C,respectively,received dexmedetomidine(1 μg/kg) and saline.Heart rate(HR),systolic arterial pressure(SAP),diastolic arterial pressure(DAP) and bispectral index(BIS) were recorded,respectively,before drug administration(baseli...