Publications by authors named "Zhi-Mei Shi"
Objectives: Patients with advanced ampullary carcinoma (AC) who are unsuitable for surgery are most likely to have poor outcomes. The role of endoscopic radiofrequency ablation (RFA) in this population has not been fully defined. We aimed to assess the short- and long-term outcomes of RFA in a large cohort of AC patients.
View Article and Find Full Text PDFBackground And Study Aims: There are limited data on the role of antireflux biliary stents. This single-center randomized trial compared the endoscopic use of partly covered antireflux metal stents (pcARMS) with that of standard uncovered self-expandable metal stents (ucSEMS) for the palliation of nonhilar malignant biliary obstruction.
Patients And Methods: Between August 2007 and February 2012, patients with nonhilar malignant biliary obstruction were randomly assigned to treatment with either pcARMS or ucSEMS.
Background: Endoscopic management of biliary or pancreatic strictures by stent insertion is well established. However, some high-grade strictures are refractory to dilation and stent placement with conventional methods.
Objective: To evaluate the safety and efficacy of the wire-guided electrotomy technique in dilating stiff biliary and/or pancreatic stenoses when ordinary methods failed.
Background: Antireflux stents that prevent duodenal biliary reflux may improve biliary drainage and prolong stent patency. However, the use of antireflux metal stents (ARMSs) in the human biliary system has not been reported.
Objective: To evaluate the safety and efficacy of ARMSs for the palliation of unresectable distal biliary malignancies.