Comparison of transverse short-axis classic and oblique long-axis “Syringe-Free” approaches for internal jugular venous catheterization under ultrasound guidance

Ultrasound-guided supraclavicular brachiocephalic vein catheterization in children: Syringe-free in-plane technique with micro-convex probe

“…The primary advantage of our technique is the in-plane needle insertion which ensures keeping the whole needle under real-time visualization and decreases the risk of misplacement of the needle tip during cannulation. 7,8 Misplacement of the needle tip is a difficulty that may occur in clinical practice, in central catheterization of neonates and infants. When the needle enters the vein and blood is aspirated, the syringe has to be detached from the needle to insert the guidewire through the needle.…”

“…The needle is advanced within the brachiocephalic vein without getting close to the vessel walls and the guidewire enters directly in the brachiocephalic vein and proceeds forward without changing its direction. [7][8][9][10] The lesser footprint of the micro-convex US probe is another advantage, which makes it more suitable to use for neonates and infants. The operator finds a larger area for manipulations and redirections of the needle when the micro-convex US probe is used.…”

“…Blood aspiration is not necessary before the placement of the guidewire, which makes the procedure simple and easy. 7,8 The endocavity micro-convex US probe has gained popularity among adults due to visualization capability of deep tissues and easy accessibility in CVC. Its small footprint is an advantage, which may be potentially efficient in pediatric patients for facilitating the needle advancement and redirections during the cannulation procedure.…”

Is ultrasound guided syringe-free method more efficient for saphenous vein catheterization? A prospective randomized controlled study

“…The syringe-free method is firstly reported to be applied in internal jugular venous interventions by Matias et al [8]. Whereas İnce et al [13] compared the syringe-free approached applied on the oblique axis through ultrasound guidance and determined that this approach allows a shorter period for entering the vein and for catheterization. In the study that compares the classical and ultrasound-guided methods, the ultrasound-guided method is found much more successful as expected [14].…”

Acceso vascular guiado por ecografía en el niño crítico: ventajas, retos y nuevas técnicas = Ultrasound guided vascular access in critically ill children: Advantages, challenges and new techniques

“…La principal ventaja es que permite la inserción de la aguja "en plano" a la vez que se mantiene una visión de la arteria carótida y las estructuras adyacentes en todo momento. (76,79,83)…”