Comparison Between Two Methods of Bilateral Stenting for Malignant Hilar Obstruction

Comparison Between Two Methods of Bilateral Stenting for Malignant Hilar Obstruction

Internal biliary drainage using stent is used for malignant hilar obstruction such as cholangiocarcinoma, hepatocellular carcinoma and other malignancy including metastasis.

Bilateral drainage is more physiologic and have more long patency than unilateral drainage.

There are two methods of bilateral drainage: Y-stent and side by side.

However there are no clinical data about comparing the effectiveness of these two methods.

Therefore the investigators want to compare the clinical outcomes of two methods:

Y-stent and side by side.

Inclusion Criteria:

• age ≥ 18 years
• patient who have obstructive jaundice (bilirubin > 2.0mg/dl) due to hilar malignancy

Exclusion Criteria:

• patients with endoscopic retrograde cholangiogram is not possible
• bleeding tendency (PT INR > 1.5, platelet < 50,000)
• poor general condition (ECOG 3-4) or cardiopulmonary deterioration
• pregnancy