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A valved hepatic portoduodenal intestinal conduit for biliary atresia
K Tanaka1, I Shirahase, H Utsunomiya
1Second Department of Surgery, Kyoto University, School of Medicine, Japan.
Insights
This study introduces a valved hepatic portoduodenal conduit for biliary atresia, improving bile drainage and reducing cholangitis. The novel technique enhanced patient survival rates, offering a promising surgical option.
Area of Science:
- Pediatric Surgery
- Gastroenterology
- Hepatology
Background:
- Biliary atresia is a severe neonatal liver disease requiring prompt surgical intervention.
- The Kasai operation is a standard procedure, but complications like cholangitis and poor bile drainage persist.
Purpose of the Study:
- To evaluate the efficacy of a novel valved hepatic portoduodenal intestinal conduit in biliary atresia surgery.
- To assess the impact of this technique on bile drainage, cholangitis incidence, and patient survival.
Main Methods:
- A retrospective review of 46 biliary atresia patients operated on between 1978 and 1989.
- Construction of a biliointestinal anastomosis using an intussuscepted muscular valve within the intestinal conduit.
- Radiological and liver scintigraphy assessments of valvular function and bile flow.
Main Results:
- 85% of patients achieved bile drainage post-operation.
- A 5-year jaundice-free survival rate of 64% was observed.
- The incidence of cholangitis was reduced, and its management was simplified compared to traditional methods.
Conclusions:
- The valved hepatic portoduodenal intestinal conduit effectively improves bile drainage in biliary atresia.
- This technique leads to decreased cholangitis, easier medical control, and enhanced survival rates.
- The valved conduit represents a significant advancement in surgical management for biliary atresia.
Abstract:
Forty-six consecutive patients with biliary atresia were operated on at our institution during the 11-year period between 1978 and 1989. Their ages at operation ranged from 18 to 153 days (mean, 59 days). After dissecting the porta hepatis structures by Kasai operation, a biliointestinal anastomosis was constructed with a valved hepatic portoduodenal intestinal conduit in all cases. The intestinal valve is an intussuscepted muscular valve. Valvular function was examined radiologically. The upper gastrointestinal series demonstrated no reflux of contrast material into the conduit proximal to the valve and liver scintigraphy demonstrated that radioactive isotope drained readily into the duodenum through the valve. Thirty-nine of the forty-six patients (85%) had bile drainage after initial operation. At present 30 patients (65%) are alive without jaundice, 6 (13%) are alive with jaundice, and 10 (22%) are dead. The 5-year jaundice-free survival rate was 64%. Cholangitis occurred in 9 of 39 patients (23%) who had obtained apparent bile drainage: 5 had tractable cholangitis and 4 had refractory cholangitis. Reoperation restored bile flow in 2 of 8 patients who abruptly ceased to have bile drainage without cholangitis. In conclusion, with a valved hepatic portoduodenal intestinal conduit, the incidence of cholangitis was decreased, its medical control became easier, and the survival rate was improved.