Kỹ thuật mới: Tạo đường hầm xuyên gan qua da vào đường ngoài gan để nội soi tán sỏi đường mật trong gan

The 33 cases with intrahepatic stones were drainaged percutaneous transhepatic into common bile duct (extrahepatic bile duct) to make canal for electrohydraulic cholangioscopic lithotripsy. 18 cases with canal into superior confluence (54.5 percent); 12 cases-canal into common hepatic duct (36.4 percent); 3 casescanal into choledoque (3 percent). Cholangioscopic machine could reach almost of locations of intrahepatic stones (87.9 percent). The rate of clearance of stones: 84.8 percent; the remained rate of stones: 15.2 percent. Not complication any of either abdominal haemorrhage or bile leakage into abdominal cavity, one case with subphrenic accumulation of fluid and one case with intrahepatic accumulation of fluid (3 percent) after cholangioscopic lithotripsy. The technique of percutaneous trans hepatic cholangiodrainage into common bile duct could be applied to make canal for intrahepatic cholangioscopic lithotripsy.