Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

679 questions · 687 findings · 43 reviews

No studies found 169 · 24.6%GRADE not reported 172 · 25%Very low 157 · 22.9%Low 128 · 18.6%Moderate 47 · 6.8%High 14 · 2%

The wand (computer-controlled LA delivery system) vs Sleeper One (electronic LA delivery system)

Adverse effects: pain on injection (solution deposition), Heft-Parker VAS 0-170 mm · Children and adolescents having dental treatment under local anaesthetic without general anaesthesia

The wand (computer-controlled LA delivery system) showed no clear difference in pain on injection (self-reported; FACES Pain Scale Revised) compared with sleeper One (electronic LA delivery system); GRADE not reported.

1 finding from 1 review

The wand (computer-controlled LA delivery system) vs other local anaesthetic

Completion of dental treatment · Children and adolescents having dental treatment under local anaesthetic without general anaesthesia

The review found no eligible studies for this question.

1 finding from 1 review

Bispectral index vs clinical signs

Occurrence of intraoperative awareness Time points of measure after surgery: 2 to 6 hours;12 hours; 1 day; 2 days; 3 days; 14 days; 30 days; or time point was not reported Measurement tools: simple questioning; interviews; or structured questionna... · adults undergoing surgery with general anaesthesia

Bispectral index may leads to lower occurrence of intraoperative awareness Time points of measure after… compared with clinical signs (low certainty).

1 finding from 1 review

Bispectral index vs ETAG

Occurrence of intraoperative awareness Time points of measure after surgery: 2 to 6 hours;12 hours; 1 day; 2 days; 3 days; 14 days; 30 days; or time point was not reported Measurement tools: simple questioning; interviews; or structured questionna... · adults undergoing surgery with general anaesthesia

BIS showed no clear difference in occurrence of intraoperative awareness Time points of measure after… compared with ETAG (low certainty).

1 finding from 1 review

Ultrasound guidance vs no ultrasound

Failed blocks · 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 failed blocks compared with no ultrasound guidance (moderate certainty).

1 finding from 1 review

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