Internal biliary drainage is an useful method for a control of jaundice and cholangitis to patients who had a malignant hilar obstruction due to hepatocellular carcinoma, cholangiocarcinoma, gall bladder cancer or metastatic lymphadenopathy. Bilateral biliary drainage is more physiologic but technically difficult to compared with unilateral biliary drainage specially related to conformability and flexibility between using stents. There are no prospective clinical trials compared with these internal biliary drainage methods in hilar malignant obstruction using metal stent. Therefore, the investigators want to compare the clinical outcome of two method: Unilateral biliary stent and Bilateral biliary stent
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
to use a LCD stent at an unilateral or bilateral stent insertion
to use ERCP for a stent insertion in an obstructive biliary tract
Stent patency
Participants will followed for the new obstruction(new jaundice) will occur.
Time frame: up to 1year
survival period
Participants will followed for 1year.
Time frame: up to 1year
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