BACKGROUND The purpose of this observational cohort study was to assess patient and operator-dependent factors which could have an impact on total fluoroscopy time during ultrasound and fluoroscopy-guided percutaneous transhepatic biliary drainage (PTBD). MATERIAL AND METHODS Between October 2016 and November 2020, 127 patients with malignant biliary obstruction underwent ultrasound- and fluoroscopy-guided PTBD with the right-sided intercostal approach. The initial bile duct puncture was ultrasound-guided in all patients, and the puncture angle was measured by ultrasound. Any subsequent steps of the procedure were performed under continuous fluoroscopy (15 fps). The patients were divided in 2 groups based on the puncture angle: ≤30° (group I) and >30° (group II). In a retrospective analysis, both groups were compared for inter- and intragroup variability, technical success, total fluoroscopy time, and complications. RESULTS In group II, the recorded total fluoroscopy time (232.20±140.94 s) was significantly longer than that in group I (83.44±52.61 s) (P<0.001). In both groups, total fluoroscopy time was significantly longer in cases with a lesser degree of bile duct dilatation, intrahepatic bile duct tortuosity, presence of liver metastases, and multiple intrahepatic bile duct strictures. CONCLUSIONS The initial bile duct puncture angle was identified as an operator-dependent factor with the possible impact on total fluoroscopy time. The puncture angle of less than 30° was positively correlated with overall procedure efficacy and total fluoroscopy time reduction.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8614062PMC
http://dx.doi.org/10.12659/MSM.933889DOI Listing

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