Ultrasound-guided arterial cannulation in the paediatric population

Area of Science:

• Pediatric Anesthesiology
• Medical Imaging in Pediatrics
• Vascular Access Procedures

Background:

• Arterial line cannulation in pediatric patients traditionally relies on palpation or Doppler guidance.
• The superiority of ultrasound guidance over these methods for pediatric arterial line placement remains unclear.
• This review is an update of a 2016 publication, aiming to clarify the evidence.

Approach:

• A systematic review and meta-analysis of randomized controlled trials (RCTs) was conducted.
• Searches included major databases (CENTRAL, MEDLINE, Embase, Web of Science) up to October 2022.
• Data from nine RCTs involving 748 pediatric arterial cannulations were analyzed.

Key Points:

• Ultrasound guidance significantly increases first-attempt success rates (RR 2.01) and overall success rates (RR 1.32).
• It substantially reduces the risk of complications like hematoma (RR 0.26) and the number of cannulation attempts.
• The procedure duration is also reduced with ultrasound guidance (MD -98.77 seconds).

Conclusions:

• Moderate-certainty evidence indicates ultrasound guidance is superior to palpation or Doppler for pediatric arterial cannulation.
• Ultrasound improves success rates, reduces complications, and shortens procedure time.
• Further research may clarify benefits in neonates and younger children.