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Updated: Sep 21, 2026

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Published on: February 10, 2015
Cystic duct occlusion and transcatheter sclerosis of the gallbladder in the rabbit
Abstract:
We have identified a reliable sclerosant of the gallbladder in rabbits. After ligating the cystic ducts with a silk ligature in 24 rabbits and aspirating the bile from the gallbladder, we instilled a mixture of 95% ethanol and either 2 M% trifluoroacetic acid (TFA) or 5 M% TFA into the gallbladder. The animals were killed after 6 or 8 weeks. Ethanol with TFA resulted in replacement of gallbladder lumen with fibrous tissue in 22 rabbits. The two sclerosants were equally reliable and produced quantitatively similar fibrosis in the rabbits. The tendency for normal biliary mucosa to repopulate a sclerosed gallbladder can be obviated by complete occlusion of the cystic duct. The parameters for successful transcatheter sclerosis of the gallbladder have now been defined in an animal model.
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