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131I rose bengal: its use in the evaluation of infantile jaundice
Insights
The 131I-rose bengal study (RBI) helps diagnose biliary atresia in infants. Low fecal RBI excretion (<10%) strongly suggests extrahepatic biliary atresia, aiding in early diagnosis and treatment.
Area of Science:
- Hepatology
- Pediatric Gastroenterology
- Nuclear Medicine
Background:
- Biliary atresia is a critical condition in infants requiring timely diagnosis.
- Accurate diagnostic tools are essential for differentiating biliary atresia from other cholestatic liver diseases.
Purpose of the Study:
- To evaluate the diagnostic utility of the 131I-rose bengal study (RBI) in infants suspected of biliary atresia.
- To assess the prognostic value of fecal RBI excretion in children undergoing surgery for biliary atresia.
Main Methods:
- 110 131I-rose bengal studies (RBI) were conducted in infants with suspected biliary atresia.
- Fecal RBI excretion was measured and correlated with diagnosis and surgical outcomes.
- Post-surgical RBI tests were performed at various intervals.
Main Results:
- Fecal RBI excretion <10% was found in 72/73 cases of extrahepatic biliary atresia.
- This low excretion was also observed in 10/37 cases of intrahepatic cholestasis.
- Early post-surgical RBI excretion >15% correlated with successful bile flow restoration.
Conclusions:
- The 131I-rose bengal study is a valuable tool for diagnosing biliary atresia in infants.
- Fecal RBI excretion levels provide prognostic information regarding bile flow restoration after surgery.
Abstract:
One-hundred ten 131I-rose bengal studies (RBI) were performed in infants suspected of having biliary atresia. Fecal RBI excretion of less than 10% was observed in 72 of 73 cases of extrahepatic biliary atresia, but also in 10 of 37 cases of intrahepatic cholestasis of various origins. One-hundred twenty-two RBI tests were performed in children operated on for extrahepatic biliary atresia and 71 tests were performed between postsurgical weeks 3 and 8, and 51 tests were done later. Prognostically, early tests show that fecal RBI excretion of more than 15% was observed in 2 of 34 cases who were later completely jaundice-free and in only 1 of 37 cases where no bile flow restoration occurred.