FASt Track in Elective Neurosurgery: the Role of Low Propofol Bis-NOL Guided General Anaesthesia for Full, Early and Safe Awakening

This study is testing whether using a lower dose of a sedative called propofol — guided by two real-time monitors that track brain activity and pain response during surgery — allows brain surgery patients to wake up earlier and more safely after their operation. **You may be eligible if...** - You are 18 or older - You are scheduled for elective (non-emergency) brain surgery for a condition above or below the brain's "tent" (supra- or sub-tentorial) - You are otherwise in good cognitive and physical health before surgery **You may NOT be eligible if...** - You have a history of psychiatric illness or take psychiatric medications - Your score on the Glasgow Coma Scale is below 15 (meaning you have some impairment before surgery) - You have obvious cognitive decline or speech difficulties - You are under 18 years old Talk to your doctor to see if this trial is right for you.