Diagnosis of clonorchiasis during and after biliary tract surgery: a clinical analysis of 15 cases

Objective To investigate the clinical features of clonorchiasis diagnosed during biliary surgery,and to provide more comprehensive and effective information for the surgical treatment of clonorchiasis. Methods A retrospective analysis was performed for the clinical data of 15 patients who were diagnosed with clonorchiasis during and after biliary tract surgery in our department from January 2013 to January 2016,and their clinical features were summarized. Results All the 15 patients were male,among whom 5 once ate uncooked freshwater fish and shrimps. Of all patients,8 underwent laparoscopic bile duct exploration and 7 underwent endoscopic retrograde cholangiopancreatography( ERCP). Adult Clonorchis sinensis was found in intraoperative or postoperative drainage. All the patients achieved clearance of Clonorchis sinensis after regular anthelmintic treatment. Conclusion If bile duct exploration finds grey- black or bright- red melon seed-like floccules,clonorchiasis should be highly suspected. Intraoperative T- tube drainage is recommended,and if suspected Clonorchis sinensis is found after laparoscopic bile duct exploration and T- tube drainage or after ERCP and nasobiliary drainage,microbiological examination should be performed next. As for the patients with a definite diagnosis of clonorchiasis,they should not eat uncooked freshwater fish or shrimps and should be given regular anthelmintic treatment.