Anesthesia Awareness. PACU presentation 5/14/08 -S. Zaghi MD. Definition. Definition of Anesthesia: Anesthesia is a state in which the patient feels no pain. This may range from blocking the sensation of one small part of the body to total unconsciousness.
-S. Zaghi MD
Avidan MS, et al. Anesthesia awareness and the Bispectral Index. The New England Journal of Medicine 358, (11), 1097-1108: 2008.
Notice how the Turquoise line (BIS) consistently in range, but awareness still occurred