Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,938 questions · 1,994 findings · 246 reviews · Headline outcomes only

No studies found 490 · 24.6%GRADE not reported 71 · 3.6%Very low 669 · 33.6%Low 446 · 22.4%Moderate 264 · 13.2%High 54 · 2.7%

Ultrasound guidance vs no ultrasound

Minor complications (3 to 6 weeks · children (≤ 18 years of age) undergoing any type of surgical procedure (open or laparoscopic) for which a neuraxial (spinal, epidural,…

Ultrasound guidance showed no clear difference in minor complications compared with no ultrasound guidance (low certainty).

1 finding from 1 review

Ultrasound guidance vs no ultrasound

Major complications · children (≤ 18 years of age) undergoing any type of surgical procedure (open or laparoscopic) for which a neuraxial (spinal, epidural,…

Ultrasound guidance showed no clear difference in major complications compared with no ultrasound guidance (moderate certainty).

1 finding from 1 review

Supplemental IV crystalloid vs control IV crystalloid volume

Nausea · participants aged 6 months or older undergoing surgical procedures under general anaesthesia

Supplemental IV crystalloid probably leads to lower risk of PON, defined as the presence of subjective nausea, reported… compared with control IV crystalloid volume (moderate certainty).

1 finding from 1 review

Supplemental IV crystalloid vs control IV crystalloid volume

Risk of POV, reported dichotomously by any discrete episodes of vomiting · participants aged 6 months or older undergoing surgical procedures under general anaesthesia

Supplemental IV crystalloid probably leads to lower risk of POV, reported dichotomously by any discrete episodes of… compared with control IV crystalloid volume (moderate certainty).

1 finding from 1 review

Supplemental IV crystalloid vs control IV crystalloid volume

Risk of requiring pharmacologic treatment for PONV, reported dichotomously as the use of any medication intended to treat nausea or vomiting during the postoperative period · participants aged 6 months or older undergoing surgical procedures under general anaesthesia

Supplemental IV crystalloid probably leads to lower risk of requiring pharmacologic treatment for PONV, reported… compared with control IV crystalloid volume (moderate certainty).

1 finding from 1 review

Supplemental IV crystalloid vs control IV crystalloid volume

Risk of suffering a serious adverse event, reported dichotomously as the occurrence of any of: admission to high‐dependency unit, postoperative cardiac or respiratory complication, or death · participants aged 6 months or older undergoing surgical procedures under general anaesthesia

The review found no eligible studies for this question.

1 finding from 1 review

Fish oil lipid emulsion (LE) vs non‐fish oil LE

PNALD/cholestasis (conjugated bilirubin ≥ 2 mg/dL) – pure F‐LE vs S‐LE · parenterally fed preterm infants with surgical conditions

It is very uncertain whether fish oil lipid emulsion (LE) changes PNALD/cholestasis (conjugated bilirubin ≥ 2 mg/dL) – pure F‐LE vs S‐LE compared with non‐fish oil LE (very low certainty).

1 finding from 1 review

Fish oil lipid emulsion (LE) vs non‐fish oil LE

PNALD/cholestasis (conjugated bilirubin ≥ 2 mg/dL) – pure F‐LE vs S‐LE · parenterally fed term and late preterm infants with surgical conditions

It is very uncertain whether fish oil LE changes PNALD/cholestasis (conjugated bilirubin ≥ 2 mg/dL) Pure F‐LE vs S‐LE compared with non‐fish oil LE (very low certainty).

1 finding from 1 review