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. 2021 Dec 1;2021(12):CD010995. doi: 10.1002/14651858.CD010995.pub3

Summary of findings 2. Endovascular treatment compared to standard medical care for wake‐up stroke.

Endovascular treatment compared to standard medical care for wake‐up stroke
Patient or population: people with stroke upon awakening
Setting: hospital emergency department
Intervention: endovascular treatment
Comparison: standard medical care
Outcomes Anticipated absolute effects* (95% CI) Relative effect
(95% CI) No. of participants
(studies) Certainty of the evidence
(GRADE) Comments
Risk with standard medical care Risk with endovascular treatment
Independent functional outcome at end of follow‐up assessed with: mRS 0 to 2 at follow‐up: 90 days 116 per 1000 594 per 1000
(298 to 1000) RR 5.12
(2.57 to 10.17) 205
(2 RCTs) ⊕⊕⊕⊕
HIGH**  
Intracranial haemorrhage at follow‐up: mean 90 Data not available from the studies.
Death at follow‐up: mean 90 326 per 1000 222 per 1000
(140 to 349) RR 0.68
(0.43 to 1.07) 205
(2 RCTs) ⊕⊕⊕⊕
HIGH**  
*The risk in the intervention group (and its 95% confidence interval) is based on the assumed risk in the comparison group and the relative effect of the intervention (and its 95% CI).
**None of these RCTs could be blinded for investigators or participants due to the nature of the intervention.
CI: confidence interval;mRS: modified Rankin Scale; RCT: randomised controlled trial; RR: risk ratio
GRADE Working Group grades of evidenceHigh certainty: We are very confident that the true effect lies close to that of the estimate of the effect
Moderate certainty: We are moderately confident in the effect estimate: the true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different.
Low certainty: Our confidence in the effect estimate is limited: the true effect may be substantially different from the estimate of the effect.
Very low certainty: We have very little confidence in the effect estimate: the true effect is likely to be substantially different from the estimate of effect.