Experience with percutaneous transhepatic fiberoptic choledochoscopy for retained stones in the biliary tract. Report on 15 patients

Step-by-step strategy in the management of residual hepatolithiasis using post-operative cholangioscopy

Hepatolithiasis is the presence of calculi within the intrahepatic bile duct specifically located proximal to the confluence of the left and right hepatic ducts. The ultimate goal of hepatolithiasis treatment is the complete removal of the stone, the correction of the associated strictures and the prevention of recurrent cholangitis. Although hepatectomy could effectively achieve the above goals, it can be restricted by the risk of insufficient residual liver volume, and has a 15.6% rate of residual hepatolithiasis. With improvements in minimally invasive surgery, post-operative cholangioscopy (POC), provides an additional option for hepatolithiasis treatment with higher clearance rate and fewer severe complications. POC is very safe, and can be performed repeatedly until full patient benefit is achieved. During POC three main steps are accomplished: first, the analysis of the residual hepatolithiasis distribution indirectly by imaging methods or directly endoscopic observation; second, the establishment of the surgical pathway to relieve the strictures; and third, the removal of the stone by a combination of different techniques such as simple basket extraction, mechanical fragmentation, electrohydraulic lithotripsy or laser lithotripsy, among others. In summary, a step-by-step strategy of POC should be put forward to standardize the procedures, especially when dealing with complicated residual hepatolithiasis. This review briefly summarizes the classification, management and complications of hepatolithiasis during the POC process.

Surgical treatment of complicated hepatolithiasis using the ultrasound-guided fiberoptic choledochoscope

BACKGROUND

The residual stones of postsurgical intrahepatic calculi have been among the most difficult problems in hepatobiliary surgery. Intraoperative ultrasound can clearly display the morphology of intrahepatic bile ducts and the distribution of calculi as well as the position of the choledochoscope and the calculus extraction instruments. Therefore, intraoperative ultrasound can guide the choledochoscope and its auxiliary equipment for calculus extraction. It is necessary to evaluate the effectiveness and safety of surgeries using an ultrasound-guided fiberoptic choledochoscope for the treatment of complicated hepatolithiasis.

METHODS

The 56 cases in group A were selected from patients who had complicated hepatolithiasis treated with calculus extraction therapy using an ultrasound-guided fiberoptic choledochoscope in the authors' hospital between January 2006 and June 2009. The 63 cases of complicated hepatolithiasis in group B were chosen from patients treated with calculus extraction surgeries using a fiberoptic choledochoscope without the guidance of ultrasound from September 2001 through December 2005. Transabdominal ultrasound, T-tube cholangiography, and computed tomography (CT) examination were performed on day 15 after the surgery to compare the complete stone clearance rate, the residual stone rate, and the incidence rate of postoperative complications between groups A and B.

RESULTS

The intrahepatic calculi were completely removed in 53 group A cases. The complete stone clearance rate was 94.6%, and the residual stone clearance rate was 5.4%. In group B, 51 cases had complete stone removal, for a stone clearance rate of 81% and a residual stone rate of 19%. The difference in the residual stone rates between the two groups is statistically significant (p=0.025). No hemobilia, biliary perforation, or other complications were observed in either group.

CONCLUSION

Use of the intraoperative ultrasound-guided fiberoptic choledochoscope in the treatment of complicated hepatolithiasis can significantly reduce the residual stone rate of intrahepatic biliary calculi and significantly improve the treatment effect of hepatolithiasis.

Percutaneous transhepatic cholangioscopy for diagnosis and therapy of biliary diseases in older patients

OBJECTIVE

To describe the use of percutaneous cholangioscopy in older patients with complex diagnostic and therapeutic bile duct disorders.

DESIGN

Case series.

SETTING

Tertiary care center.

PATIENTS

Fourteen patients with a mean age of 74 (SD +/- 9) years (range, 60-91 years) underwent percutaneous cholangioscopy. Eleven of these patients presented with endoscopically irretrievable bile duct stones. These 11 patients represent 4.1% of a group of 342 patients (age > or = 60 years) with a mean age of 76 (SD +/- 9) years who were treated endoscopically because of common bile duct stones between January 1993 and January 1996. Three patients presented with obstructive jaundice resulting from a bile duct stricture. In these three patients, brushing cytology of the strictures had proved to be negative.

INTERVENTION

After creation and dilatation of a percutaneous transhepatic tract, cholangioscopy was carried out with a flexible cholangioscope. All procedures were performed under mild sedation and analgesia. Stone disintegration was obtained by electrohydraulic lithotripsy, applied through the working channel of the cholangioscope.

RESULTS

Complete stone disintegration and removal was obtained after one to three cholangioscopic sessions in all 11 patients with stones. A histological diagnosis of malignancy was obtained in the three patients with biliary strictures.

CONCLUSIONS

Percutaneous cholangioscopy is a well tolerated and promising technique in our diagnostic and therapeutic strategy in older patients with complex biliary disorders not responsive to peroral endoscopic diagnosis or treatment.

Operative choledochoscopy: common bile duct exploration is incomplete without it

This paper reviews the reported experience of operative choledochoscopy. Development of choledochoscopes to the currently available rigid and flexible instruments is described. The collected results of both rigid and flexible choledochoscopy are reported. Retained stones occurred in 97 of 2712 stone-positive explorations with the rigid choledochoscope (3.6 per cent) and in 35 of 1726 stone-positive explorations with the flexible choledochoscope (2.0 per cent). Choledochoscopy should now be a mandatory part of common bile duct exploration.