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Choledochal cyst in infancy: a follow-up study.
M T Cheng1, M H Chang, H Y Hsu
1Department of Pediatrics, Surgery, National Taiwan University Hospital, Taipei.
Acta Paediatrica Taiwanica = Taiwan Er Ke Yi Xue Hui Za Zhi
|July 27, 2000
Summary
Early diagnosis of choledochal cysts in infants, especially when associated with biliary atresia, is crucial. Ultrasonography aids detection, and prompt surgery improves outcomes, reducing risks like liver cirrhosis.
Area of Science:
- Pediatric Surgery
- Gastroenterology
- Medical Imaging
Background:
- Choledochal cysts are congenital bile duct dilatations, posing risks of complications like biliary cirrhosis and cholangitis.
- Early diagnosis and management are vital for improving long-term outcomes in affected infants.
- The association between choledochal cysts and biliary atresia requires specific consideration in diagnosis and treatment.
Purpose of the Study:
- To analyze the clinical characteristics, diagnostic methods, and treatment outcomes of infants diagnosed with choledochal cysts.
- To investigate the impact of associated biliary atresia on the presentation and prognosis of choledochal cysts.
- To evaluate the effectiveness of ultrasonography in early detection and surgical management strategies.
Main Methods:
- Retrospective review of 19 infants diagnosed with choledochal cysts between January 1980 and February 1997.
- Classification of cysts based on Todani's system and grouping based on the presence or absence of biliary atresia.
- Analysis of diagnostic methods (primarily ultrasonography), surgical interventions (Roux-en-Y, Kasai operation), and follow-up data.
Main Results:
- Ultrasonography diagnosed 79% of cases before 6 months old, including prenatal diagnoses.
- Type Ia choledochal cysts were most common (74%).
- In infants with biliary atresia (37%), jaundice and pale stools were consistent; delayed treatment led to cirrhosis and mortality in some cases. Of 12 infants without biliary atresia, most had good outcomes, though some died due to anomalies or delayed surgery.
Conclusions:
- The potential association of biliary atresia with choledochal cysts warrants careful evaluation as a distinct clinical entity.
- Ultrasonography is a valuable tool for prenatal and infant diagnosis of choledochal cysts.
- Early surgical intervention is critical for infants with persistent jaundice and pale stools to prevent complications like biliary cirrhosis and reduce mortality.