EDAN elite V5 User Manual page 179

Patient Monitor User Manual
100
80
60
40
20
0
Note: This chart reflects a general association between clinical state and BIS
values. Ranges are based on results from a multi-center study of the BIS
involving the administration of specific anesthetic agents. BIS values and
ranges assume that the EEG is free of artifacts that can affect its
performance. Titration of anesthetics to BIS range should be dependent upon
the individual goals established for each patient. These goals and associated
BIS ranges may vary over time and in the context of patient status and
treatment plan.
- SQI: The SQI numeric reflects the signal quality for the EEG channel source and provides
information about the reliability of the BIS, SR, SEF, TP and BC numerics during the last
minute. It ranges from 0% to 100%:
0% to15%: the numerics cannot be derived.
15% to 50%: the numerics cannot be reliably derived.
50% to 100%: the numerics are reliable.
- SR: The SR is the percentage of time over the last 63-second period that the signal is
considered to be in the suppressed state.
- SEF: The SEF is a frequency below which 95% of the total power is measured.
- TP: The TP numeric indicates the power in the frequency band 0.5 Hz to 30 Hz. The useful
range is 40 dB to 100 dB.
BIS Range and Clinical State
Awake
Responds to normal voice
Light/ Moderate Sedation
May respond to loud commands or mild prodding/shaking
General Anesthesia
Low probability of explicit recall
Unresponsive to verbal stimulus
Deep Hypnotic State
Burst Suppression
Flat Line EEG
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Monitoring BIS