What can i expect with a brain surgery?

Depends on type: What to expect from brain surgery depends on what is going to be done.

Each is different: Brain surgery is a very broad term in this era of immensely advanced brain surgery. Each brain surgery is its own entity and hence i can give you a better answer if you were to be more specific with regards to your question. Are you set up for brain surgery for a brain biopsy, brain tumor resection, aneurysm clipping, or another cause?