Anaes Vivas · Depth of anaesthesia & awareness
Data viva — the BIS trace and the deep-anaesthesia harm
A data viva on the BIS trace — the too-deep (the BIS under 40, the burst suppression) associated with the harm (the mortality, the delirium, the POCD); the too-light (the BIS above 60, the awareness risk); the target 40-60; and the titration.
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ANZCAFRCAABAEDAIC
Prompt
A BIS trace showing the prolonged BIS below 30 (the deep) with the burst suppression, in an elderly patient. Interpret and advise.
Stimulus
The BIS trace shows the prolonged BIS below 30 (the deep) with the burst suppression, in the 78-year-old patient for the hip surgery. Interpret and advise.
References3ShowHide
- [3]Rieck E, et al. Processed EEG in predicting postoperative cognitive recovery. J Clin Anesth, 2026.PMID 42160881
- [1]Yu H, et al. Depth of anesthesia monitoring: current evidence. J Int Med Res, 2026.PMID 42333677
- [42333678]Bersten AD, Soni N (eds) Oh's Intensive Care Manual. 8th edition, Elsevier, 2018.