- Ultrasound guidance for performing neuraxial or peripheral nerve block in children probably decreases the risk for failure.
- Pain scores also are decreased at an hour after surgery when ultrasound guidance is used.
- Risks for minor complications are unaffected.
- 5 studies are in progress.
Why this matters
- This Cochrane review updates a 2016 review and adds 13 new trials, but the conclusions remain.
- Failure risk is reduced with ultrasound guidance: risk difference, –0.16 (95% CI, –0.25 to –0.07); 22 trials; n=1789; evidence quality moderate.
- Small-moderate postsurgery pain reduction with ultrasound guidance: standardized mean difference: –0.41 (95% CI, –0.74 to –0.07); 15 trials; n=982 participants; evidence quality moderate.
- 33 studies included, with 2293 children; block with ultrasound guidance compared with another localization method.
- Funding: Universities, others.
- Limitations are those of the included studies.