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What do systematic reviews say?

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Evidence found and GRADE certainty

1,103 questions · 1,157 findings · 177 reviews · Headline outcomes only

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No studies found 291 · 25.2%GRADE not reported 85 · 7.3%Very low 317 · 27.4%Low 258 · 22.3%Moderate 169 · 14.6%High 37 · 3.2%

Intervention not reported

Number of participants with self‐reported pain intensity reduction of at least 50% from baseline · adults undergoing open heart surgery

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Number of participants below 30/100 mm on the visual analogue scale (VAS) in self‐reported postoperative pain intensity · adults undergoing open heart surgery

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Analgesic use measured via PCA · adults undergoing open heart surgery

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Number of participants below 30/100 mm on the visual analogue scale (VAS) in self‐reported postoperative pain intensity · adults undergoing open heart surgery

It is very uncertain whether the intervention changes number of participants below 30/100 mm on the visual analogue scale… (very low certainty).

1 finding from 1 review

Intervention not reported

Number of participants with self‐reported pain intensity reduction of at least 50% from baseline · adults undergoing open heart surgery

The review found no eligible studies for this question.

1 finding from 1 review

Intervention not reported

Number of participants below 30/100 mm on the visual analogue scale (VAS) in self‐reported postoperative pain intensity · adults undergoing open heart surgery

The review found no eligible studies for this question.

1 finding from 1 review