Percutaneous Biodegradable Biliary Stents for the Treatment of Benign Biliary Strictures.

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.