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  • Title: Safety and effectiveness of ultrasound-guided percutaneous transhepatic biliary drainage: a multicenter experience.
    Author: Giurazza F, Corvino F, Contegiacomo A, Marra P, Lucarelli NM, Calandri M, Silvestre M, Corvino A, Lucatelli P, De Cobelli F, Niola R, Cariati M, Italian College of Interventional Radiology (ICIR) Rising Stars Group.
    Journal: J Ultrasound; 2019 Dec; 22(4):437-445. PubMed ID: 31368040.
    Abstract:
    AIMS: Aim of this study is to describe a multicenter experience on percutaneous transhepatic biliary drainage (PTBD) performed with ultrasound-guidance to access the biliary tree, focusing on safety, effectiveness and radiation dose exposure; differences between right- and left-sided approaches have been also evaluated. METHODS: This is a multicenter prospective single-arm observational study conducted on patients affected by biliary tree stenosis/occlusion with jaundice and endoscopically inaccessible. The procedures have been performed puncturing the biliary system under US guidance and crossing the stenosis/occlusion under fluoroscopy. Beam-on time and X-ray dose have been evaluated. RESULTS: 117 patients affected by biliary tree stenosis/occlusion not manageable with an endoscopic approach have been included in this analysis. The biliary stenosis/occlusion was malignant in 90.8% and benign in 9.2%. Technical success, considered as positioning of a drainage tube into the biliary tree, was 100%. Overall clinical success, considered as decrease in total bilirubin level after a single procedure, was 95.7%. The overall mean number of liver punctures to catheterize the biliary tree was 1.57. The mean total beam-on time was 570.4 s; the mean dose-area product was 37.25 Gy cm2. No statistical significant differences were observed in terms of technical and dosimetry results according to right-sided and left-sided procedures. Complications rate recorded up to 30 days follow-up was 10.8%, all of minor grades. CONCLUSIONS: In this series US guidance to access the biliary tree for PTBD was a safe and effective technique with an acceptable low-grade complications rate; the reported radiation dose is low.
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