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What do systematic reviews say?

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Evidence found and GRADE certainty

9 questions · 10 findings · 5 reviews · Stroke

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No studies found 0 · 0%GRADE not reported 0 · 0%Very low 3 · 30%Low 3 · 30%Moderate 4 · 40%High 0 · 0%

Endovascular therapy plus conventional medical treatment vs conventional medical treatment alone

Death · people with symptomatic intracranial artery stenosis

Endovascular therapy plus conventional medical treatment may leads to higher death compared with conventional medical treatment alone (low certainty).

1 finding from 1 review

Endovascular therapy plus conventional medical treatment vs conventional medical treatment alone

Death or stroke · people with symptomatic intracranial artery stenosis

Endovascular therapy plus conventional medical treatment probably leads to higher death or stroke compared with conventional medical treatment alone (moderate certainty).

1 finding from 1 review

Endovascular coiling vs neurosurgical clipping

Death from any cause (12 months) · people with subarachnoid haemorrhage from a ruptured intracranial aneurysm

Endovascular coiling showed no clear difference in death from any cause (12 months) compared with neurosurgical clipping (moderate certainty).

1 finding from 1 review

Endovascular coiling vs neurosurgical clipping

Death or dependence · people with subarachnoid haemorrhage from a ruptured intracranial aneurysm

Endovascular coiling probably leads to lower poor outcome: death or dependence in daily activities (12 months) compared with neurosurgical clipping (moderate certainty).

2 findings from 1 review