Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

696 questions · 700 findings · 53 reviews · Anaesthesia

No studies found 107 · 15.3%GRADE not reported 151 · 21.6%Very low 144 · 20.6%Low 178 · 25.4%Moderate 97 · 13.9%High 23 · 3.3%

Intervention not reported

Mortality in patients with pre‐existing renal impairment As reported in the included trials Folliow‐up: 7 days · patients with pre‐existing renal impairment

It is very uncertain whether the intervention changes mortality in patients with pre‐existing renal impairment As reported… (very low certainty).

1 finding from 1 review

Intervention not reported

Acute renal injury in patients with pre‐existing renal impairment As reported in the included trials · patients with pre‐existing renal impairment

It is very uncertain whether the intervention changes acute renal injury in patients with pre‐existing renal impairment As… (very low certainty).

1 finding from 1 review