Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,345 questions · 4,525 findings · 483 reviews

No studies found 1,024 · 22.6%GRADE not reported 388 · 8.6%Very low 1,172 · 25.9%Low 1,227 · 27.1%Moderate 576 · 12.7%High 138 · 3%

DDAVP vs placebo or usual care

Number of participants receiving a red cell transfusion (total) · participants with platelet dysfunction undergoing surgery

DDAVP showed no clear difference in number of participants receiving a red cell transfusion (total) compared with placebo or standard care: platelet dysfunction subgroup (low certainty).

1 finding from 1 review

Buffered vs non‐buffered crystalloid intravenous fluid

Mortality (in‐hospital death and 30‐day mortality) · adults receiving intravenous fluids whilst undergoing any form of surgery

Buffered showed no clear difference in mortality (in‐hospital death and 30‐day mortality) compared with non‐buffered crystalloid intravenous fluid (low certainty).

1 finding from 1 review

Buffered vs non‐buffered crystalloid intravenous fluid

Organ system failure ‐ renal insufficiency requiring support · adults receiving intravenous fluids whilst undergoing any form of surgery

Buffered showed no clear difference in organ system failure ‐ renal insufficiency requiring support compared with non‐buffered crystalloid intravenous fluid (low certainty).

1 finding from 1 review