Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

339 questions · 355 findings · 25 reviews

No studies found 134 · 37.7%GRADE not reported 38 · 10.7%Very low 87 · 24.5%Low 66 · 18.6%Moderate 27 · 7.6%High 3 · 0.8%

Continuous local anaesthetic wound infusion vs placebo

Any serious postoperative adverse event (until hospital discharge) · adults undergoing elective midline laparotomy for colorectal resection

Continuous local anaesthetic wound infusion showed no clear difference in any serious postoperative adverse event (until hospital discharge) compared with placebo (low certainty).

1 finding from 1 review

Local anaesthetic injection vs no treatment/placebo

Patient‐reported pain intensity or pain relief (VAS, NRS or categorical scale) · septal surgery

The review found no eligible studies for this question.

3 findings from 1 review

Summary of findings table ‐ Intraperitoneal local anaesthetic vs control

Serious adverse events · people undergoing laparoscopic cholecystectomy.

It is very uncertain whether summary of findings table ‐ Intraperitoneal local anaesthetic changes serious adverse events compared with control (very low certainty).

1 finding from 1 review

Summary of findings table ‐ Intraperitoneal local anaesthetic vs control

Proportion discharged as day surgery · people undergoing laparoscopic cholecystectomy.

It is very uncertain whether summary of findings table ‐ Intraperitoneal local anaesthetic changes proportion discharged as day surgery compared with control (very low certainty).

1 finding from 1 review