摘要
Endoscopic stent placement is a common primary management therapy for benign and malignant biliary strictures.However,continuous use of stents is limited by occlusion and migration.Stent technology has evolved significantly over the past two decades to reduce these problems.The purpose of this article is to review current guidelines in managing malignant and benign biliary obstructions,current endoscopic techniques for stent placement,and emerging stent technology.What began as a simple plastic stent technology has evolved significantly to include uncovered,partially covered,and fully covered self-expanding metal stents (SEMS) as well as magnetic,bioabsorbable,drug-eluting,and antireflux stents.
Endoscopic stent placement is a common primary management therapy for benign and malignant biliary strictures.However,continuous use of stents is limited by occlusion and migration.Stent technology has evolved significantly over the past two decades to reduce these problems.The purpose of this article is to review current guidelines in managing malignant and benign biliary obstructions,current endoscopic techniques for stent placement,and emerging stent technology.What began as a simple plastic stent technology has evolved significantly to include uncovered,partially covered,and fully covered self-expanding metal stents (SEMS) as well as magnetic,bioabsorbable,drug-eluting,and antireflux stents.
