This is an observational study (retrospective analysis on a prospective database) of patients that have been implanted a biodegradable stent in the biliary tree to treat benign stenosis.~From march 2011 until May 2020, a prospective collection of clinical data has been conducted in patients with symptomatic benign biliary strictures treated biodegradable polydioxanone stents. A strict follow-up protocol has been carried out according to standard practice (at 2, 4, 6 months and every 6 months up to 5 years). Once the follow-up is completed, the collected data will be analyzed, assessing the long term effectiveness and safety, but also other variables related to stent implantation and impact on patient's quality of life.~A subgroup analysis of anastomotic biliary strictures will be performed.
To assess safety and effectiveness in the long term of percutaneous insertion of Biodegradable (BD) Biliary Stents for the treatment of benign biliary strictures, in a single center experience.