Abstract
Objective
To study the ideal Kasai portoenterostomy (KPE) time for preterm infants with biliary atresia (BA) through evaluation of the postoperative effects.
Methods
Retrospectively, 34 preterm infants with BA from 2012 to 2016 were recruited in the present study. The following three groups were established according to their chronological and corrected age at the time of KPE operation: chronological age ≤ 90 days, chronological age > 90 days and corrected age ≤ 90 days, and corrected age > 90 days. For chronological age ≤ 90 days at operation, patients were further divided into another three groups: chronological age ≤ 60 days, chronological age > 60 days and corrected age ≤ 60 days, and corrected age > 60 days. Postoperative effects were then followed up and recorded.
Results
First, of those patients divided according to 90-day chronological and corrected age, postoperative total bilirubin levels (TBL), direct bilirubin levels (DBL), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) of the group whose chronological age was ≤ 90 days were lower than the levels of the group whose chronological age was > 90 days and corrected age ≤ 90 days (P = 0.0472, P = 0.0358, P = 0.0083, and P = 0.0491), and the group whose corrected age was > 90 days (P = 0.0383, P = 0.0392, P = 0.0043, and P = 0.0107). Second, for those patients whose chronological age was ≤ 90 days, the group whose corrected age was > 60 days showed a higher ALT level than the other two groups with chronological age ≤ 60 days (P = 0.0472) and chronological age > 60 days and corrected age ≤ 60 days (P = 0.0258).
Conclusion
According to the present study, the ideal KPE time for preterm BA infants should meet two conditions: chronological age ≤ 90 days and corrected age ≤ 60 days. The groups with a chronological age ≤ 60 days, and chronological age > 60 days and corrected age ≤ 60 days show similar postoperative effects.
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