Shallow-angle needle guide for ultrasound-guided internal jugular venous catheterization: A randomized controlled...

Area of Science:

• Medical Devices
• Ultrasound Technology
• Vascular Access

Background:

• Ultrasound-guided internal jugular venous catheterization is crucial for successful cannulation.
• The risk of posterior vein wall injury and its complications with needle guides is not well understood.
• Previous research suggests a shallow angle of approach may decrease posterior wall injuries.

Purpose of the Study:

• To evaluate a novel needle guide designed for a shallow angle of approach in ultrasound-guided venous catheterization.
• To compare the incidence of posterior vein wall injuries between the novel guide, a commercial guide, and free-hand technique in a simulated setting.

Main Methods:

• A randomized crossover-controlled trial involving 35 residents.
• Participants were trained in three short-axis out-of-plane ultrasound-guided techniques: free-hand (P-free), commercial needle guide (P-com), and novel shallow angle needle guide (P-sha).
• The primary outcome was the rate of posterior vein wall injuries, with venipuncture recorded within a simulated vein.

Main Results:

• Posterior vein wall injuries occurred in 66% of P-free attempts and 60% of P-com attempts.
• The novel shallow angle needle guide (P-sha) resulted in a 0% incidence of posterior vein wall injuries (p<0.01).
• No significant difference in injury rates was observed between the free-hand and commercial needle guide techniques.

Conclusions:

• The novel needle guide utilizing a shallow angle of approach significantly reduces posterior vein wall injuries during simulated venipuncture.
• This finding suggests improved safety for ultrasound-guided venous catheterization procedures.
• The shallow angle approach may be a key factor in preventing iatrogenic vascular trauma.