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The Rose Bengal test in neonatal cholestasis: diagnostic and prognostic value
Insights
131I Rose Bengal (131IRB) tests help diagnose infant cholestasis. Post-operative 131IRB excretion reliably predicts successful bile flow restoration in extrahepatic biliary atresia (EHBA) surgery.
Area of Science:
- Pediatric Gastroenterology
- Hepatology
- Nuclear Medicine
Background:
- Cholestasis in infants presents diagnostic challenges, often requiring differentiation between extrahepatic biliary atresia (EHBA) and intrahepatic cholestasis.
- Accurate diagnosis is crucial for timely intervention and improved patient outcomes.
Purpose of the Study:
- To evaluate the utility of 131I Rose Bengal (131IRB) excretion studies in differentiating causes of infant cholestasis.
- To assess the predictive value of post-operative 131IRB excretion for successful bile flow restoration in EHBA.
Main Methods:
- 131IRB scintigraphy was performed on 73 infants with EHBA and 37 with intrahepatic cholestasis.
- Fecal 131IRB excretion was measured to assess cholestasis severity.
- Post-operative 131IRB excretion was analyzed in 71 children following EHBA surgery.
Main Results:
- Complete cholestasis (fecal excretion <10%) was observed in EHBA, syndromic paucity of intrahepatic bile ducts, and alpha-1-antitrypsin deficiency.
- Post-operative fecal 131IRB excretion >15% correlated with successful jaundice clearance (27/34 cases).
- Low post-operative excretion (<15%) indicated poor bile flow restoration (1/37 cases).
Conclusions:
- 131IRB excretion patterns can aid in distinguishing EHBA from other causes of infant cholestasis.
- Post-operative 131IRB scintigraphy is a reliable non-invasive tool for predicting bile flow restoration after EHBA surgery.
Abstract:
131I Rose Bengal(131IRB) studies were performed in 73 infants with extrahepatic biliary atresia (EHBA) and in 37 with intrahepatic cholestasis of various origins. Fecal 131IRB excretion of less than 10% ("complete' cholestasis) was observed in EHBA but also in some patients with either paucity of intrahepatic bile ducts (syndromatic type) or with alpha-1-antitrypsin deficiency. Seventy one 131IRB tests were also performed 3 to 8 weeks postoperatively in children operated on for EHBA. Fecal 131IRB excretion more than 15% was present in 27 out of 34 cases who were later completely jaundice free and in only one out of 37 cases where no bile flow restoration occurred. These results indicate that complete cholestasis in infants can be observed in some types of intrahepatic cholestasis, as well as in EHBA, and show that a post-operative 131IRB test is a reliable means of predicting complete restoration of bile flow in EHBA.