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What do systematic reviews say?

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Evidence found and GRADE certainty

670 questions · 695 findings · 72 reviews · Headline outcomes only

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No studies found 160 · 23%GRADE not reported 58 · 8.3%Very low 291 · 41.9%Low 148 · 21.3%Moderate 35 · 5%High 3 · 0.4%

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