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Does hepatic hilum morphology influence long-term prognosis in type I/I cyst biliary atresia?
Masaki Nio1, Motoshi Wada2, Hideyuki Sasaki2
1Department of Pediatric Surgery, Tohoku University Graduate School of Medicine, 1-1, Seiryomachi, Aobaku, Sendai, 980-8574, Japan. mnio@ped-surg.med.tohoku.ac.jp.
Insights
Hepatic hilum morphology does not significantly impact long-term outcomes in type I/I biliary atresia (BA) patients. Close postoperative monitoring is crucial for all patients with type I/I BA cysts.
Area of Science:
- Pediatric Surgery
- Hepatology
- Gastroenterology
Background:
- Biliary atresia (BA) is a severe neonatal liver disease.
- Some patients with cystic BA experience favorable outcomes.
- Early identification of favorable BA types aids long-term management.
Purpose of the Study:
- To investigate the impact of hepatic hilum morphology on long-term prognosis in type I/I BA.
- To differentiate subtypes based on hepatic duct size in type I/I BA.
Main Methods:
- Retrospective analysis of 253 BA patients, focusing on 40 with type I/I cysts.
- Classification into subtype α (duct diameter ≥ 1 mm) and subtype β (duct diameter < 1 mm).
- Comparison of postoperative clinical courses between subtypes.
Main Results:
- No significant difference in jaundice resolution between subtypes α (89%) and β (86%).
- Survival with native livers was similar: 72% in subtype α vs. 55% in subtype β.
- Approximately 40% of patients developed liver failure postoperatively.
Conclusions:
- Hepatic hilum morphology does not appear to influence long-term outcomes in type I/I BA.
- Close, long-term follow-up is essential for all type I/I BA patients.
- Further research may explore other prognostic factors.
Purpose:
Some patients with cystic biliary atresia (BA) achieve exceptionally good postoperative courses. Early differentiation of pediatric patients with the favorable-type disease can lead to beneficial long-term postoperative management. We examined whether the hepatic hilum morphology affects long-term prognosis in type I/I cyst BA, atresia of the common bile duct with/without a cyst.
Methods:
Of 253 BA patients identified since 1972, 40 were classified as having type I/I cysts and were divided into two subtypes according to hepatic duct size (subtype α: n = 18; duct diameter, ≥ 1 mm and subtype β: n = 22; duct diameter, <1 mm) to compare postoperative clinical courses.
Results:
In subtypes α and β, jaundice disappeared in 16 (89 %) and 19 (86 %) patients, respectively (p = 0.81), and 13 (72 %) and 12 (55 %) survived with native livers (p = 0.18) at a mean age of 23.3 and 25.5 years, respectively (p = 0.42).
Conclusions:
There were no significant differences in long-term outcomes between subtypes α and β, although approximately 40 % developed liver failure during the postoperative course. Thus, close long-term follow-up is essential in type I/I cysts, regardless of the hepatic hilum morphology.
