All operations and all anesthesia have some risks, and they are dependent upon many factors including the type of surgery and the medical condition of the patient. Fortunately, adverse events are very rare. Your anesthesiologist and CRNA take precautions to prevent an accident from occurring just as you do when driving a car or crossing the street.
The specific risks of anesthesia vary with the particular procedure and the condition of the patient. Your anesthesiologist and/or CRNA will discuss with you risks specific to the anesthesia for your procedure.