Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,534 questions · 5,247 findings · 456 reviews

No studies found 1,142 · 21.8%GRADE not reported 1,503 · 28.6%Very low 1,040 · 19.8%Low 869 · 16.6%Moderate 554 · 10.6%High 139 · 2.6%

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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

Intervention not reported

Wound pain over 2 weeks Scale: VAS (high score= worse pain) · patients aged 18 years or over with primary perianal abscess
1 finding from 1 review

Preoperative analgesics (analgesics given before dental treatment) vs Placebo or no analgesics

Completion of treatment · Children and adolescents aged up to 17 years having dental treatment (orthodontic treatment, fillings, pulp treatment, or tooth…

The review found no eligible studies for this question.

1 finding from 1 review

Educational intervention with information and practical components (theoretical oral health education plus practical skills training) for nursing staff and/or residents vs usual care

Quality of life: Chronic pain · People with serious mental illness (all included participants had schizophrenia); majority aged 18 to 65 years per NIMH 1987, or with…

The review found no eligible studies for this question.

1 finding from 1 review