Prognostic determinants after hepatoportoenterostomy for biliary atresia
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Postoperative hepatic secretory functions in infants with biliary atresia can predict outcomes. Monitoring liver function tests helps identify infants needing reoperation for improved survival.
Area of Science:
- Pediatric Surgery
- Hepatology
- Neonatal Care
Background:
- Biliary atresia is a severe neonatal liver disease.
- Hepatoportoenterostomy is a surgical procedure to treat biliary atresia.
- Early identification of infants requiring reoperation is crucial for survival.
Purpose of the Study:
- To assess postoperative hepatic secretory functions in infants with biliary atresia.
- To compare these functions between surviving and nonsurviving infants.
- To determine the prognostic significance of these functions for identifying infants needing reoperation.
Main Methods:
- Measured hepatic secretory functions, including alkaline phosphatase clearance, bilirubin clearance, 24-hour secreted bilirubin, and Iodine-131 rose bengal excretion.
- Compared these measurements between surviving and nonsurviving infants at various postoperative time points (1, 4, 12, 24 weeks, and 6 months).
Main Results:
- Significant differences in alkaline phosphatase clearance were observed between survivors and nonsurvivors at 1, 4, 12, and 24 weeks.
- Survivors showed significantly increased bilirubin clearance and 24-hour secreted bilirubin at 12 and 24 weeks.
- Survivors also had significantly increased Iodine-131 rose bengal excretion at 6 months.
- Six of 10 survivors required reoperation due to deteriorating functions, with all improving postoperatively.
Conclusions:
- Postoperative biliary secretory functions have early prognostic significance in infants with biliary atresia.
- These functions can predict which infants may require reoperation.
- Reexploration and improved surgical techniques for atretic ducts may enhance survival rates.
Abstract:
Hepatic secretory functions were measured postoperatively in 17 infants undergoing hepatoportoenterostomy for biliary atresia. These studies were compared in surviving and nonsurviving infants to attempt early identification of infants who might require reoperation. Statistically significant differences between surviving and nonsurviving infants were found in alkaline phosphatase clearances at 1, 4, 12 and 24 weeks postoperatively. In addition, bilirubin clearance and secreted 24 hour bilirubin measurements were significantly increased in survivors 12 and 24 weeks postoperatively. Iodine-131 rose bengal excretion, measured 6 months postoperatively, was likewise significantly increased in survivors. Six of the 10 surviving infants required reoperation when their secretory functions deteriorated; all improved postoperatively. None of the seven nonsurviving infants underwent reoperation. Biliary secretory functions have early prognostic significance and apparently can predict which infants require reoperation. Reexploration and higher transection of atretic ducts may improve survival.