Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: Cerebral Hyperemia During Emergence From General Anesthesia for Craniotomy of Patients With Brain Tumor
Brief Summary: Few studies look into cerebral blood flow (CBF) changes during emergence from general anesthesia for craniotomy. The purpose of this study is to demonstrate CBF changes during emergence from general anesthesia for craniotomy, through monitoring blood oxygen saturation of jugular vein bulb and transcranial Doppler.