METHOD FOR ENDOSCOPIC PAPILLOSPHINCTEROTOMY AT CANCER OF MAJOR DUODENAL PAPILLA Russian patent published in 2007 - IPC A61B17/94 A61B17/3209 A61B18/04 

FIELD: medicine, surgical endoscopy.

SUBSTANCE: one should fulfill percutaneous transhepatic cholangiostomy, antegradely apply a certain ureteric stent through drainage canal along choledochus through major duodenal papilla (MDP) into duodenum up to its leaving MDP mouth. Then it is necessary to introduce a duodenoscope into duodenal lumen followed by endoscopic papillotomy upon a stent. Moreover, it is important to dissect the tumor with the help of an acicular electrode. The innovation enables to provide necessary and sufficient level of life quality in nonoperable patients in case of MDP cancer that gives the chance to save physiological bile outflow into duodenum, removes the risk for Wirsung's duct mouth's lesion with subsequent development of pancreonecrosis and traumatizing MDP posterior wall.

EFFECT: higher efficiency.

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