General endotracheal anesthesia is always used for surgical procedures and most often with coiling procedures. Monitored Anesthesia Care (MAC) is a specific anesthesia service in which an anesthesiologist has been requested to participate in the care of a patient undergoing a diagnostic or therapeutic procedure.
Monitored Anesthesia Care often includes the administration of doses of medications for which the loss of normal protective reflexes or loss of consciousness is likely.
Monitored Anesthesia Care refers to those clinical situations in which the patient remains able to protect the airway for the most of the procedure. If, for an extended period of time, the patient is rendered unconscious and/or loses normal protective reflexes, then anesthesia care shall be considered a general anesthetic. An attending anesthesiologist who is experienced in neuro-anesthesia is present at all times.