Objective:To investigate the principle of anesthetic management for intracranial aneurysm.Method:The anesthetic regimens of 34 cases of intracranial aneurysm were analyzed.Controlled lowering of blood pressure and protective measures for brain were implemented introperatively to prevent rapture of cerebral aneurysm and postoperative cerebrovascular spasm.Intraoperative ECG

MAP

HR

NIBP and SPO2 were monitored and the HR

MAP before and after induction phase were compare.Result:The effects of anesthesia and lowering of Bp were satisfactory

no death occurred intraoperative!y

and aneurysm ruptured m one case.The H-Rs of whole group during induction phase were not decreased as compared with those before induction phase

and the decrease of MAP was extremely significant as compared with that after induction phase.Conclusion:The effect on parts of brain should be considered when choosing narcotics and hypotensors.Perioperative brian protection could reduce the postoperative incidence rates of arterial spasm and cerebral infarction.