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New strategy to prevent ascending cholangitis in larger choledochoduodenal fistula
Zhi-Hua Li1, Jun Ding, Yongqian Ye
1Institute of Hepatobiliary Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China.
Insights
Larger choledochoduodenal fistulas (CDF) are linked to more frequent cholangitis. Surgical intervention is recommended for fistulas exceeding 1 cm to prevent bile duct issues.
Area of Science:
- Gastroenterology
- Hepatobiliary Surgery
Background:
- Choledochoduodenal fistula (CDF) is a known complication of common bile duct stones and cholangitis, particularly prevalent in Asia.
- The optimal treatment strategy for different types of CDF remains unclear.
Purpose of the Study:
- To investigate if CDF size correlates with distinct clinical presentations and treatment requirements.
- To establish evidence-based guidelines for managing CDF based on fistula size.
Main Methods:
- A retrospective review of 50 patients with CDF over 14 years.
- Treatment strategies were categorized based on fistula orifice size: >1 cm (common bile duct transection), 0.5-1.0 cm (biliary drainage), and <0.5 cm (non-surgical).
- Conventional treatments for underlying bile duct issues (stone removal, decompression) were also applied.
Main Results:
- Fistula size greater than 1 cm significantly correlated with increased frequency of cholangitis episodes (r = 0.774; P < 0.001).
- Hepatic biliary duct stones and strictures were associated with more severe cholangitis, but not necessarily more frequent episodes.
Conclusions:
- Larger CDFs (>1 cm) are associated with a higher incidence of cholangitis.
- Surgical treatment targeting the fistula itself is indicated for larger CDFs to mitigate recurrent cholangitis.
Background:
Choledochoduodenal fistula (CDF) is a complication of common bile duct stones or cholangitis in Asia. It is unclear as to which type of the fistula needs surgical treatment.
Methods:
To determine whether the sizes of CDF imply different clinical presentations and treatments, we reviewed 50 patients with CDF and their treatments during a recent 14-year period. For treatments of CDF, we applied the conventional methods, including removal of stone and complete decompression of biliary obstruction to treat the original bile lesions. In addition, according to the sizes of fistula and the frequencies of ascending cholangitis, we proposed the following strategies for fistula treatments: (i) for fistula orifices larger than 1 cm, a transection of common bile duct was applied to prevent the reflux of duodenal juice; (ii) for fistula orifices between 0.5 and 1.0 cm, an effective biliary drainage was applied; and (iii) for fistula orifices less than 0.5 cm, non-surgical treatments were applied.
Results:
We found that hepatic biliary duct stones and hepatic biliary duct strictures were associated with more severe cholangitis (P = 0.037 and P = 0.009, respectively), but not with the episodes of cholangitis (P = 0.654 and P = 0.664, respectively). In contrast, the sizes of fistula >1 cm were associated with more frequent episodes of cholangitis (r = 0.774; P < 0.001).
Conclusion:
The larger fistula increases frequency of cholangitis episodes and needs surgical treatment for fistula itself.
