[Percutaneous cholangiography with the Chiba method (author's transl)]

Cholestasis diagnosis often requires imaging of the bile ducts. Prior research has shown that percutaneous cholangiography is a method used in such cases. However, success rates can vary depending on the condition of the bile ducts. No prior work had resolved the exact success rates in patients with normal versus dilated ducts. This gap motivated a detailed evaluation of the Chiba method's effectiveness. The method's use in cholestasis has been established, but specific outcomes remain unclear. That uncertainty drove the need for a study assessing both success and complication rates. This paper's contribution lies in quantifying these outcomes. The study's findings may help guide clinical decisions in cholangiography.

The aim was to evaluate the effectiveness of percutaneous cholangiography using the Chiba method in patients with cholestasis. The specific problem addressed was the variability in success rates based on bile duct condition. The motivation stemmed from the need for accurate diagnostic imaging in cholestatic diseases. The study sought to clarify success rates in both normal and dilated bile ducts. It also aimed to document the frequency of complications. The authors focused on quantifying these outcomes to inform clinical practice. The study's design allowed for a direct comparison of success rates. The findings could influence the use of this method in diagnostic settings.

The study involved 92 patients diagnosed with cholestasis. Each underwent percutaneous cholangiography using the Chiba method. The primary outcome was successful visualization of the bile ducts. Success rates were calculated separately for dilated and normal ducts. Complications were recorded and classified as major or minor. The procedure was performed under imaging guidance. No additional diagnostic tools were used in this study. The data collected included both quantitative and qualitative assessments.

The bile ducts were visualized in 75 of 92 patients, a success rate of 81.5 percent. Success was higher in patients with dilated ducts at 94 percent. In patients with normal ducts, the success rate was 65 percent. Only two complications were reported among the 92 cases. One patient required surgery for biliary peritonitis. Another had hemobilia detected during laparotomy. No major complications were observed in the remaining patients. These findings suggest the Chiba method is generally safe.

The authors propose that the Chiba method is effective in most cholestatic patients. The success rate is notably higher when bile ducts are dilated. The low complication rate supports its use in diagnostic settings. These findings may guide clinicians in selecting appropriate imaging methods. The study does not claim the Chiba method is essential for all cases. The results suggest it is a viable option when other methods are unavailable. The authors do not generalize these findings beyond the study population. The paper's implications are limited to the observed outcomes.