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Updated: Aug 30, 2026
Endoscopic Ultrasound-Guided Biliary Drainage: Endoscopic Ultrasound-Guided Hepaticogastrostomy in Malignant Biliary Obstruction
Published on: March 25, 2022
Percutaneous transhepatic metal versus plastic biliary stent in treating malignant biliary obstruction: a multiple
Yuan-Xing Guo1, Yan-Hao Li, Yong Chen
1Department of Interventional Radiology, Nanfang Hospital, First Military Medical University, Guangzhou 510515, China. guoyuanxing@netease.com
Objective:
To compare the efficacy of metal versus plastic biliary stent implantation in the treatment of malignant biliary obstruction.
Methods:
Percutaneous transhepatic self-expandable metal stent (MS, n=61) and 10F plastic stent (PS, n=34) were placed in 95 patients with malignant biliary obstruction in three hospitals of Guangdong province. All patients were followed up until death or at least one year after the procedure. Kaplan-Meier analysis was used to compare the survival of the patients and the rates of stent patency.
Results:
The 30-day mortality rate was lower in the MS group (6/61, 9.8%) than in the PS group (9/34, 26.5%, P<0.05). The 30-day reobstruction rate and the complication rate were 15.0%, 16.4% in the MS group and 32.4%, 29.4% in the PS group, respectively (P<0.01). The median patency period of stents and median survival period of the patients were 230 days, 224 days in the MS group and 90 days, 94 days in the PS group, respectively (P<0.01).
Conclusion:
Metal stent is clinically superior to plastic stent in the treatment of malignant biliary obstruction.