Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

9 questions · 9 findings · 4 reviews · Stroke

No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 3 · 33.3%Moderate 2 · 22.2%High 4 · 44.4%

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 therapy plus conventional medical treatment vs medical treatment

Death or stroke · people with vertebral artery stenosis

Endovascular treat ment plus medical treatment showed no clear difference in 30‐day post‐randomisation death/stroke compared with medical treatment alone (low certainty).

1 finding from 1 review

SUMMARY OF FINDINGS FOR DECOMPRESSION vs medical treatment

Death or severe disability (mRS > 4) at 6 to 12 months · malignant cerebral oedema after ischaemic stroke

Summary of findings table ‐ surgical decompression leads to lower death or severe disability (mRS > 4) at 6 to 12 months compared with medical treatment alone (high certainty).

1 finding from 1 review

SUMMARY OF FINDINGS FOR DECOMPRESSION vs medical treatment

Death or moderate disability (mRS > 3) at 6 to 12 months · malignant cerebral oedema after ischaemic stroke

Summary of findings table ‐ surgical decompression probably leads to lower death or moderate disability (mRS > 3) at 6 to 12 months compared with medical treatment alone (moderate certainty).

1 finding from 1 review