4Seyhan TO,Tugrul M,Sungur MO,et al.Effects of three dif-ferent dose regimens of magnesium on propofol requirements,haemodynamic variables and postoperative pain relief in gynecological surgery[J].Br J Anaesth,2006,96(2):247-252.
5Choi JC,YoonKB,Um DJ,et al.Intravenous magnesium sul-fate administration reduces propofoi infusion requirements during maintenance of propofol-N20 anesthesia[J].Anes-thesiology,2002,97(5):1137-1141.
7Unlugene H,Gunduz M,Ozalevli M.et al.A comparative study on the analgesic effect of tramadol,tramadol plus mag-nesium,tramadol plus ketamine for perioperative pain man-agement after major abdominal[J].Acta Anaesthesiol Scand,2002,46(8):1025-1030.
8Shimosawa T,Takano K,Ando K,et al Magnesium inhibits norepinephrine release by blocking N-type calcium channels at peripheral sympathetic nerve endings[J].Hypertension.2004,44(6):897-902.
