Department of Gastroenterology, The University of Tokyo, Tokyo, Japan.
Dig Endosc. 2012 May;24 Suppl 1:59-61. doi: 10.1111/j.1443-1661.2012.01271.x.
Endoscopic placement of a plastic stent is the standard drainage for a symptomatic benign biliary stricture. Although a removable fully covered self-expandable metal stent has been applied for distal benign biliary stricture, placement of a plastic stent remains the standard treatment for proximal benign biliary stricture. Placement of a plastic stent above the papilla (inside stent) is an alternative to the conventional method because of its preventive effect against the dysfunction of the stent in patients with proximal benign biliary stricture.
经内镜放置塑料支架是治疗有症状的良性胆道狭窄的标准方法。虽然可取出的全覆膜自膨式金属支架已应用于治疗远端良性胆道狭窄，但对于近端良性胆道狭窄，放置塑料支架仍然是标准治疗方法。在乳头上方（支架内）放置塑料支架是一种替代传统方法的选择，因为它可以预防近端良性胆道狭窄患者支架功能障碍。
