Anesthesia

New insight into brain responses during anesthesia and surgery: (1)

• BIS can help clarify the distinction between brain and spinal cord responses, enabling you to manage anesthetic goals of hypnosis, analgesia and immobility
• Because BIS measures electrical activity in the brain, it provides a direct correlation with depth of consciousness (hypnosis)
• Responses to surgical stimulation are frequently indicators of the need for additional analgesia. These responses are often mediated at the spinal cord
• BIS enables you to assess consciousness and sedation separately from cardiovascular reactivity

How BIS Works:

• Raw EEG information is obtained via a sensor placed on patient's forehead
• The BIS system processes the EEG information and calculates a number between 0 and 100 that provides a direct measure of the patient's level of consciousness
• A BIS value near 100 indicates the patient is fully awake
• A BIS value of zero indicates the absence of brain activity

Improving care and contributing to cost savings in the OR:

• BIS monitoring and reduced risk of awareness in adults
• BIS monitoring and faster wake ups
• BIS monitoring and shorter PACU stays
• BIS monitoring and drug savings

References:

1. Dershwitz M. Should we measure depth of anesthesia? Seminars in Anesthesia:Perioperative Medicine and Pain 2001; 20 (4): 246-256.