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Gastrointest Endosc. 1992 May-Jun;38(3):338-40.

Decreased bacterial adherence to silver-coated stent material: an in vitro study.

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Department of Medicine, Prince of Wales Hospital, Chinese University of Hong Kong, Shatin.


Bacteria are important in causing biliary stent blockage through adherence and subsequent biofilm formation. In our in vitro system, surface modification using test polyurethane discs with silver coating led to a reduction in the number of adherent bacteria compared with untreated controls by 10- to 100-fold in an apparently dose-related manner. The effect was more marked in the presence of bile. These results suggest that silver coating may have a potential benefit in preventing stent blockage.

[Indexed for MEDLINE]

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