What does the anesthesiologist do on the day of lumbosacral spasm surgery?

A thorough. History and physical will be performed and a plan will be crafted suited to your needs and desires. The plan will be discussed with you and your questions answered prior to the beginning of the anesthetic.
Keep you alive. Essentially the anesthesiologist job is to keep you alive during surgery. We monitor you vital signs and treat any abnormalities that occur due to the surgery or medications. Each anesthesiologist will see their patients the morning of surgery and plan the care of their patients. I hope that this helps.