Abstract:Objective To discuss which drainage method is more efficient in treatment of choledocholithiasis with obstructive jaundice. Methods Compared the difference of serum total bilirubin,direct bilirubin, the variation of serum total bilirubin and direct bilirubin before and after drainage and daily biliary drainage by endoscopic nasobiliary drainage (ENBD) and endoscopic nasobiliary drainage with continuous negative-pressure suction after three days. Results The daily biliary drainage about the patients by ENBD with continuous negative-pressure suction is much more effective than the patients by ENBD. The serum total bilirubin and direct bilirubin about the patients by ENBD with continuous negative-pressure suction is less than the patients by ENBD after three days. The variation of serum total bilirubin and direct bilirubin before and after drainage about the patients by ENBD with continuous negative-pressure suction is more than the patients by ENBD. Conclusion The ENBD with continuous negative-pressure suction is more effective for choledocholithiasis with obstructive jaundice.