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Updated: Feb 1, 2026

Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
Ultrasound-guided port-a-cath positioning with the new one-shoot technique: thoracic complications
M Cajozzo1, V D Palumbo2, V Mannino1
1Department of Surgical, Oncological and Stomatological Disciplines, University of Palermo, Palermo.
Objectives:
Port-a-cath catheterization is often required for those patients who need long-term therapies (malnutrition, neoplasm, renal failure, other severe diseases). The use of ports for a wide range of indications is not exempt from complications. Ultrasound-guided central venous catheterization (CVC) is a safe and fast technique for the introduction of the catheter inside a central vein. This retrospective study reports our experience with US-guided CVC in patient eligible for port-a-cath implantation.
Materials And Methods:
From January 2007 to March 2017, 108 CVC (out of 770 procedures), were positioned using an ultrasound guide, with the new "one-shoot technique" (group 1) and the classic Seldinger technique (group 2).
Results:
One-shoot techniques showed a reduced operative time, in comparison to Seldinger technique, with a negligible minor complication rate. No major complication were evidenced.
Conclusions:
CVC is a safe procedure, although not free from complications. Ultrasonography enhances safety of the procedure by decreasing puncture attempts and complications; it is helpful in patients with vascular anatomical variations, with no visualized or palpable landmarks or for patients with coagulation disorders.
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