Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

3,454 questions · 3,562 findings · 816 reviews · Headline outcomes only

No studies found 538 · 15.1%GRADE not reported 239 · 6.7%Very low 933 · 26.2%Low 1,041 · 29.2%Moderate 612 · 17.2%High 199 · 5.6%

Nitroglycerin vs no treatment

All‐cause mortality in 30 days post operation · patients (15 years of age and older) undergoing non‐cardiac surgery under any type of anaesthesia

It is very uncertain whether nitroglycerin changes all‐cause mortality in 30 days post operation compared with no treatment (very low certainty).

1 finding from 1 review

Nitroglycerin vs placebo

All‐cause mortality in 30 days post operation · patients (15 years of age and older) undergoing non‐cardiac surgery under any type of anaesthesia

It is very uncertain whether nitroglycerin changes all‐cause mortality in 30 days post operation compared with placebo (very low certainty).

1 finding from 1 review

Very early cerebral revascularization vs delayed treatment

Perioperative death and strokes · people with recently symptomatic carotid artery stenosis

It is very uncertain whether very early cerebral revascularization changes stroke and Death < 30 days compared with delayed treatment (very low certainty).

1 finding from 1 review