Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

528 questions · 535 findings · 57 reviews

No studies found 147 · 27.5%GRADE not reported 66 · 12.3%Very low 121 · 22.6%Low 115 · 21.5%Moderate 78 · 14.6%High 8 · 1.5%

Shunting vs no shunting

Stroke‐related death within 30 days of surgery (best‐case) · patients with symptomatic or asymptomatic carotid disease

Shunting may leads to lower stroke‐related death within 30 days of surgery (best‐case) compared with no shunting (low certainty).

1 finding from 1 review

Shunting vs no shunting

Stroke‐related death within 30 days of surgery (worst‐case) · patients with symptomatic or asymptomatic carotid disease

Shunting showed no clear difference in stroke‐related death within 30 days of surgery (worst‐case) compared with no shunting (low certainty).

1 finding from 1 review