Comparison of Single-operator Laser-assisted Ultrasound-guided Radial Arterial Cannulation in Young Children with Traditional Ultrasound Guidance: A Randomized Clinical Trial

Hou, L; Song, X; Yan, N; Zhao, Z; Li, Z

doi:10.1097/aln.0000000000004534

Pediatric anesthesia & critical care

Comparison of Single-operator Laser-assisted Ultrasound-guided Radial Arterial Cannulation in Young Children with Traditional Ultrasound Guidance: A Randomized Clinical Trial

AnesthesiologyPublished 14 Feb 2023Randomised controlled trial

Primary result · First-attempt success rateResultAbsolute difference 20 % 95% CI 2.3%–36.6%

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Authors' conclusion

It improves the first-attempt success rate of radial artery cannulation in children younger than 2 yr by projecting the path of the artery on the skin and provides better procedural conditions (stable ultrasound probe).

Study context

Population: Children younger than 2 yr requiring radial artery cannulation during GA80 analysed
Participants: 80 participants

Comparison: Laser-assisted vs Traditional ultrasound
Laser-assistedn = 40
Traditional ultrasoundn = 40reference
Primary endpoint: First-attempt success rate

Methodological detailssingle-centre, prospective, parallel-group, Cannulation performed by two experienced operators after induction of GA

Single-centre
Prospective
Parallel-group
Cannulation performed by two experienced operators after induction of GA

Primary result

As reported in the abstract

Absolute difference

20 %

95% CI 2.3%–36.6%

P = 0.025

Events by treatment group

Laser-assisted90%36 of 40

Traditional ultrasound70%28 of 40

Laser-assisted vs Traditional ultrasound

absolute difference 20 % (95% CI 2.3%–36.6%); P = 0.025

Secondary outcomes

Procedure time to success within the first attempt

P < 0.001

Laser-assistedmedian 31 sIQR 27–36

Traditional ultrasoundmedian 46 sIQR 39–52

Initial needle-tip position 3, 4, or 5

P < 0.001

Laser-assisted95%

Traditional ultrasound33%

Initial needle-tip position 4 or 5

P < 0.001

Laser-assisted65%

Traditional ultrasound13%

Median

Outcome	Laser-assisted	Traditional ultrasound	P value
Initial needle-tip position score after skin puncture	4 (IQR 3,4)	2 (IQR 2,3)	P < 0.001

Safety

Hematoma

P = 0.002

Laser-assisted3%

Traditional ultrasound28%

Original publication

Comparison of Single-operator Laser-assisted Ultrasound-guided Radial Arterial Cannulation in Young Children with Traditional Ultrasound Guidance: A Randomized Clinical Trial. Anesthesiology. Published 14 February 2023. doi:10.1097/aln.0000000000004534

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