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  • Title: A comparison of metal and plastic stents for the relief of jaundice in unresectable malignant biliary obstruction in Korea: an emphasis on cost-effectiveness in a country with a low ERCP cost.
    Author: Yoon WJ, Ryu JK, Yang KY, Paik WH, Lee JK, Woo SM, Park JK, Kim YT, Yoon YB.
    Journal: Gastrointest Endosc; 2009 Aug; 70(2):284-9. PubMed ID: 19539921.
    Abstract:
    BACKGROUND: In countries where ERCP costs are low relative to those of metal stents (eg, Korea), initial endoscopic retrograde biliary drainage (ERBD) with a plastic stent is thought to be more economical. OBJECTIVE: We conducted this study to compare metal and plastic stent-based ERBD in efficacy, complications, and total cost of biliary drainage. DESIGN: Retrospective study. SETTING: Tertiary referral center. PATIENTS: A total of 112 patients who had not undergone previous biliary drainage procedures and who underwent ERBD for unresectable malignant biliary obstruction. INTERVENTIONS: Endoscopic sphincterotomy was performed, and covered or uncovered Wallstents were used in 56 patients and plastic stents in 56 patients. RESULTS: Stent occlusion occurred in 31 patients after a mean of 278 days in the metal stent group and in 39 patients after a mean of 133 days in the plastic stent group (P = .0004). The incidence of and length of hospitalization for cholangitis were significantly lower in the metal stent group. There was no difference in the total number of drainage procedures between the 2 groups. There was no statistical difference in the mean cost of the relief of jaundice between the 2 groups ($1488.77 in the metal stent group vs $1319.26 in the plastic stent group, P = .422). LIMITATIONS: Nonrandomized, retrospective study. CONCLUSION: Even in countries where ERCP costs are lower than those of metal stents, ERBD with metal biliary stents as the first-line treatment may offer better palliation without a significant increased cost in patients with unresectable malignant biliary obstruction.
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