Conclusions. DEX increased perioperative haemodynamic stability in patients undergoing brain tumour surgery. Compared with fentanyl, the trachea was intubated faster without respiratory depression.

• 结论：美托咪定能够增强脑肿瘤手术病人术中的血流动力学稳定性。同芬太尼比较，插管更快而且不会引起呼吸抑制。