b) The anesthesia provider may be asked to use a hypotensive technique or slight head elevation (10–20 degrees) during the procedure. Using general anesthesia has been associated with an increased blood loss even with the use of an epinephrine injection. This exaggerated blood loss may be related to the vasodilatory properties of the inhalation agents.

c) Delivering general anesthesia for sinus surgery with propofol as well as other IV anesthetic techniques for the maintenance of anesthesia has been associated with less blood loss than occurs with the use of volatile agents for maintenance.