Bispectral index vs ETAG: Occurrence of intraoperative awareness Time points of measure after surgery: 2 to 6 hours;12 hours; 1 day; 2 days; 3 days; 14 days; 30 days; or time point was not reported Measurement tools: simple questioning; interviews; or structured questionna...
BIS showed no clear difference in occurrence of intraoperative awareness Time points of measure after… compared with ETAG (low certainty).
What each review found
Current versions only| Finding | Effect | Studies | GRADE certainty |
|---|---|---|---|
BIS vs ETAG Occurrence of intraoperative awareness Time points of measure after surgery: 24 hours; 24 to 72 hours; 72 hours; 30 days; 18 hours after extubation in the ICU Measurement tools: structured interviews; or structured questionnaire · adults undergoing any type of surgery under general anaesthesia; types of anaesthesia included propofol, desflurane,… BIS showed no clear difference in occurrence of intraoperative awareness Time points of measure after… compared with ETAG (low certainty). Bispectral index for improving intraoperative awareness and early postoperative recovery in adults (2019) · Cochrane Headline outcomes only | Peto OR 1.13 [0.56, 2.26] | 5 studies · 26572 participants | Low |
Findings are shown side by side, never pooled across reviews.
The reviews
| Review | Searched up to | Included studies | AMSTAR 2 |
|---|---|---|---|
| Bispectral index for improving intraoperative awareness and early postoperative recovery in adults 2019 · Cochrane Headline outcomes only | Not reported | list not extracted yet | Not assessed |
Studies behind the findings
None of these reviews ties its included studies to this outcome in the data here. Cochrane reviews and reviews with headline outcomes only do not list their studies yet.
How reviews are matched to this question
Reviews word the same question differently. Four decision models (TypeSafe's Jev, Liquid AI's d1-ultra, SubQ Snap and Baseten's Elephant) judged each wording of the population, intervention, comparator and outcome against the others; two wordings count as the same when at least three of them agree and none clearly disagrees, and findings count as this question only when all four elements match. Timing, setting and subgroup never split a question: they are shown on each finding.