Abstract
Purpose To investigate the safety and efficacy of a double stent in patients with malignant extrahepatic biliary obstruction. Materials and Methods From January 2010 to March 2012, 160 consecutive patients (102 men, 58 women; mean age, 63.8 years; range, 33—91 years) with malignant extrahepatic biliary obstructions were prospectively enrolled in four academic tertiary referral centers. All patients were treated with a double stent system (covered stent-in-uncovered stent). Results The double stents were successfully placed in all patients. Stent migration was not observed in any patients. Percutaneous drainage catheters were successfully removed from all patients. Mean serum bilirubin level, which was 8.9 mg/dl ± 5.6 before drainage, decreased significantly, to 2.2 mg/dl ± 0.4, one month after stent placement (p Conclusion Percutaneous treatment of malignant extrahepatic biliary obstruction using a double stent is feasible, safe, and effective in achieving internal biliary drainage.
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