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Updated: Jun 18, 2026

State of the Art Cranial Ultrasound Imaging in Neonates
Published on: February 2, 2015
Ultralow umbilical artery catheter placement: A large cohort analysis of safety in neonates
Anna Tomaszkiewicz1, Piotr Kruczek2, Piotr Szymański2
1Department of Neonatology, Poznan University of Medical Sciences, Poznan, Poland.
Background:
Umbilical arterial catheterisation is a routine procedure in neonatal intensive care units but is associated with thrombotic and other complications. This study evaluated the safety of an innovative ultralow umbilical artery catheter (UL-UAC) positioning technique in a cohort of 235 neonates.
Methods:
This retrospective study assessed acute complications and thrombotic events following UAC placement with the UL-UAC technique, in which the catheter tip is positioned at the junction of the umbilical and internal iliac arteries under real-time ultrasound guidance. All catheter-related adverse events were recorded.
Results:
No thrombotic complications were observed. Other adverse events, including minor bleeding after catheter removal, accidental dislodgment and central line-associated bloodstream infections (CLABSI), occurred in only 4.8% of cases.
Conclusions:
The ultrasound-guided UL-UAC method is safe and has the potential to reduce the risk of thrombosis while maintaining a low overall complication rate, therefore it can be considered an alternative to the standard and well-established technique.

