the author recommends , in cases of unsuccessful stone extraction by endoscopic sphincterotomy , the mechanical lithotripsy in combination with balloon extraction of the fragments , balloon dilatation of the constricted sectors of the bile duct and nasobiliary drainage for washing the bile ducts , prevention of bile duct occlusion and treatment of cholangitis in cases of unsuccessful extraction by endoscopic sphincterotomy .
C0005400
bile ducts
C0008311
cholangitis