Biospectral Index or BIS monitoring is a new way of measuring how 'asleep' or sedated a patient is in the Operating room or in the ICU.
How does it work
This machine picks up the electrical patterns of the brain from a band that goes across the patient's head. This information is translated to a number that indicates the patient's level of awareness.
Sometimes patients may need treatment where they should not move and deep sedation is required. This machine allows the Intensive Care staff to give special drugs to make sure the patient is kept fully sedated or is able to rest comfortably between medical and nursing treatments.
Are There Any Complications?
All Intensive Care interventions and procedures carry a degree of potential risk even when performed by skilled and experienced staff. Please discuss these issues with the medical and nursing staff who are caring for the patient.
Of course, if you have any questions or concerns, please discuss them with the ICU nurses and doctors.
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The information contained on this page is general in nature and therefore cannot reflect individual patient variation. In addition it reflects Australian intensive care practice which may differ from that of other countries. It is meant as a back up to specific information which will be discussed with you by the Doctors and Nurses caring for your loved one. ICCMU attests to the accuracy of the information contained here BUT takes no responsibility for how it may apply to an individual patient. Please refer to the full disclaimer.
Biospectral Index Monitor (BIS) Version 1.2
First published June 2004
Reviewed October 2011
Kay Johnson CNS ICCMU