Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,320 questions · 4,561 findings · 388 reviews

No studies found 1,138 · 25%GRADE not reported 886 · 19.4%Very low 1,014 · 22.2%Low 849 · 18.6%Moderate 543 · 11.9%High 131 · 2.9%

Nitroglycerin vs no treatment

Acute myocardial infarction · patients (15 years of age and older) undergoing non‐cardiac surgery under any type of anaesthesia

It is very uncertain whether nitroglycerin changes acute myocardial infarction compared with no treatment (very low certainty).

1 finding from 1 review

Nitroglycerin vs no treatment

Cardiac ischaemia indicated by ECG · patients (15 years of age and older) undergoing non‐cardiac surgery under any type of anaesthesia

It is very uncertain whether nitroglycerin changes cardiac ischaemia indicated by ECG compared with no treatment (very low certainty).

1 finding from 1 review

Nitroglycerin vs no treatment

Adverse effects: headache · patients (15 years of age and older) undergoing non‐cardiac surgery under any type of anaesthesia

It is very uncertain whether nitroglycerin changes side effect (headache) 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

Nitroglycerin vs placebo

Acute myocardial infarction · patients (15 years of age and older) undergoing non‐cardiac surgery under any type of anaesthesia

It is very uncertain whether nitroglycerin changes acute myocardial infarction compared with placebo (very low certainty).

1 finding from 1 review

Intervention not reported

Time to wound healing · patients aged 18 years or over with primary perianal abscess
1 finding from 1 review

Intervention not reported

Wound pain at initial dressing change Scale: VAS (high score= worse pain) · patients aged 18 years or over with primary perianal abscess
1 finding from 1 review