Clinical Appoication Value Of EUS, ERCP In The Common Means Unexpained Extrahepatic Obstructive Jaundice

AIM:To valuate the clinical application of endoscopic ultrasound (EUS) and endoscopic retrograde hinders imaging (ERCP) to the patients with unexplained extrahepatic obstructive jaundice after routine diagnostic approaches.METHODS:Forty-five patients consisting of27males and13females, aged21to80years old has the line EUS, ERCP examination to determine the causes of pancreatic disease as well as extrahepatic bile duct obstruction which could not be figured out via ultrasonography, CT and/or MRCP.RESTULTS:After EUS,35of40patients were diagnosed as biliary microlithiasis,36of40patients were diagnosed as biliary microlithiasis by ERCP and have been treated by endoscopic sphincterotomy (EST) technique to remove biliary microlithiasis, The cases of others were due to inflammatory stenosis of lower common bile tract and then were treated with endoscopic retrograde biliary drainage (ERBD). Together, all patients were rapidly relieved from abdominal pain and jaundice exception of one cases which suffered from post-operative complication of mild pancreatitis but cured by conservative treatment. EUS, ERCP for biliary microlithiasis detection rates were97.2%(35/36)、100%(36/36), combination of the two detection rate was100%(36/36)CONCLUSION:Our findings indicate that biliary microlithiasis is the main cause of unexplained extrahepatic obstructive jaundice. EUS,ERCP is a safe and reliable method for diagnosis of extrahepatic obstructive jaundice, combination of the two can improve the diagnosis.