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AIM: The main purpose of the study was to create in vitro bile duct equivalent out of decellularized human umbilical cord artery and use it to reconstruct common bile duct obstruction with preservation of sphincter of Oddi.
MATERIAL AND METHODS: SDS and Triton X-100 were used for decellularization of the artery. Allogeneic isolated cholangiocytes were seeded onto the inner surface of the decellularized artery. Experimental study was held and 12 domestic pigs of both sexes, weighing 25-30 kg were used. They were divided in equivalent two groups. Common bile duct obstruction model was created in all animals. Animals of the first group (n=6) received no further treatment and were under observation. Animals of the second group (n=6) underwent relaparotomy after two days of initial intervention, lesion site (2 cm) was incised and defect was reconstructed with the bile duct equivalent with the size of 2-2,5 cm. Maximum observation period was 84 days.
RESULTS: Laboratory, morphologic and radiologic investigations showed good integration with the host organism.