Findings

What do systematic reviews say?

14 questions · 14 findings · 2 reviews

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No studies found 6 · 42.9%GRADE not reported 0 · 0%Very low 0 · 0%Low 6 · 42.9%Moderate 2 · 14.3%High 0 · 0%

Bispectral index vs clinical signs

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... · adults undergoing surgery with general anaesthesia

Bispectral index may leads to lower occurrence of intraoperative awareness Time points of measure after… compared with clinical signs (low certainty).

1 finding from 1 review

Bispectral index for improving intraoperative awareness and early postoperative recovery in adults 2019 · Cochrane Headline outcomes only
Peto OR 0.36 [0.21, 0.6]
27 studies · 9765 participants
Low

Bispectral index vs clinical signs

Time to eye opening · adults undergoing surgery with general anaesthesia

1 finding from 1 review

Bispectral index for improving intraoperative awareness and early postoperative recovery in adults 2019 · Cochrane Headline outcomes only
no estimate extracted
22 studies · 1494 participants
Low

Bispectral index vs clinical signs

Time to orientation · adults undergoing surgery with general anaesthesia

1 finding from 1 review

Bispectral index for improving intraoperative awareness and early postoperative recovery in adults 2019 · Cochrane Headline outcomes only
no estimate extracted
6 studies · 273 participants
Low

Bispectral index vs clinical signs

Time to discharge from the PACU (in minutes) · adults undergoing surgery with general anaesthesia

1 finding from 1 review

Bispectral index for improving intraoperative awareness and early postoperative recovery in adults 2019 · Cochrane Headline outcomes only
no estimate extracted
13 studies · 930 participants
Low

Bispectral index vs BIS‐blinded anaesthesia/clinical judgement

Incidence of delirium

Bispectral index (BIS)‐guided anaesthesia probably leads to lower incidence of delirium CAM, DSM‐IV compared with BIS‐blinded anaesthesia/clinical judgement (moderate certainty).

1 finding from 1 review

Interventions for preventing delirium in hospitalised non‐ICU patients 2016 · Cochrane Headline outcomes only
RR 0.71 [0.6, 0.85]
2 studies · 2057 participants
Moderate

Bispectral index vs BIS‐blinded anaesthesia/clinical judgement

Duration of delirium ‐ not measured

The review found no eligible studies for this question.

1 finding from 1 review

Interventions for preventing delirium in hospitalised non‐ICU patients 2016 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Bispectral index vs BIS‐blinded anaesthesia/clinical judgement

Severity of delirium ‐ not measured

The review found no eligible studies for this question.

1 finding from 1 review

Interventions for preventing delirium in hospitalised non‐ICU patients 2016 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Bispectral index vs BIS‐blinded anaesthesia/clinical judgement

Length of hospital stay

1 finding from 1 review

Interventions for preventing delirium in hospitalised non‐ICU patients 2016 · Cochrane Headline outcomes only
no estimate extracted
2 studies · 2057 participants
Moderate

Bispectral index vs BIS‐blinded anaesthesia/clinical judgement

Return to independent living ‐ not measured

The review found no eligible studies for this question.

1 finding from 1 review

Interventions for preventing delirium in hospitalised non‐ICU patients 2016 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Bispectral index vs BIS‐blinded anaesthesia/clinical judgement

In‐hospital mortality ‐ not measured

The review found no eligible studies for this question.

1 finding from 1 review

Interventions for preventing delirium in hospitalised non‐ICU patients 2016 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Bispectral index vs ETAG

BIS showed no clear difference in occurrence of intraoperative awareness Time points of measure after… compared with ETAG (low certainty).

1 finding from 1 review

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

Bispectral index vs ETAG

Time to eye opening · adults undergoing surgery with general anaesthesia

The review found no eligible studies for this question.

1 finding from 1 review

Bispectral index for improving intraoperative awareness and early postoperative recovery in adults 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Bispectral index vs ETAG

Time to orientation · adults undergoing surgery with general anaesthesia

The review found no eligible studies for this question.

1 finding from 1 review

Bispectral index for improving intraoperative awareness and early postoperative recovery in adults 2019 · Cochrane Headline outcomes only
no estimate extracted
Studies not reported
No studies found

Bispectral index vs ETAG

Time to discharge from the PACU (in minutes) · adults undergoing surgery with general anaesthesia

1 finding from 1 review

Bispectral index for improving intraoperative awareness and early postoperative recovery in adults 2019 · Cochrane Headline outcomes only
no estimate extracted
1 study · 15452 participants
Low