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%

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

Textured vs smooth implants

Capsular contracture Number of women with capsular contracture · women having reconstructive breast surgery

It is very uncertain whether textured changes capsular contracture Number of women with capsular contracture compared with smooth implants (very low certainty).

1 finding from 1 review

Anatomical vs round implants

Reintervention Number of women with reintervention · women having reconstructive breast surgery

It is very uncertain whether anatomical changes reintervention Number of women with reintervention compared with round implants (very low certainty).

1 finding from 1 review

Variable‐ vs fixed‐volume implants

Patient satisfaction: correspondence to expectations Number of women reporting correspondence with expectation · women having reconstructive breast surgery

It is very uncertain whether variable‐ changes patient satisfaction: correspondence to expectations Number of women… compared with fixed‐volume implants (very low certainty).

1 finding from 1 review

Textured vs smooth implants

Reintervention Number of women with reintervention · women having reconstructive breast surgery

It is very uncertain whether textured changes reintervention Number of women with reinterventions compared with smooth implants (very low certainty).

1 finding from 1 review

Silicone‐filled vs saline‐filled implants

Capsular contracture Number of women with capsular contracture · women having reconstructive breast surgery

It is very uncertain whether silicone‐filled changes capsular contracture Number of women with capsular contracture compared with saline‐filled implants (very low certainty).

1 finding from 1 review

Silicone‐filled vs saline‐filled implants

Patient satisfaction for consistency Number of women satisfied · women having reconstructive breast surgery

It is very uncertain whether silicone‐filled changes patient satisfaction for consistency Number of women satisfied compared with saline‐filled implants (very low certainty).

1 finding from 1 review