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AIM To search for a simple and safe method to avoid reoperation, reduce complications and mortality,shorten hospital stay and lower the medical cost.METHODS Based on the characteristic of pathology and anatomy of biliary fistula and pancreatic fistula,modified endoscopic nasobiliary drainage or endoscopic nasopancreas drainage with negative pressure wereused to drain the bile and pancreatic juice to the duodenum and in vitro to facilitate fistulous tract close.RESULTS In seven patients with biliary fistulas with conservative treatment who were not yet recoveredafter 6 - 110 days, the leakage was blocked after 6 - 17 days treatment, and in 6 patients with pancreaticfistulas with conservative treatment who were not recovered after 90 - 720 days, the leakage was blockedafter treatment for 12- 28 days.CONCLUSION The advantages of this modefied method are: retain the function of the Oddi sphincter; the anatomy of the pancreatic duct and bile duct and the position of fistulas can be seen clearly withcontrast examination; the drainage effect was defieate, safe and with less complications; the leakageblock can be promoted with the drainage of negative pressure; and hospital stay is shortened and medicalcost is reduced.
