Bacterial cholangitis after surgery for biliary atresia.

Area of Science:

• Pediatric Surgery
• Hepatobiliary Surgery
• Infectious Diseases

Background:

• Biliary atresia is a severe neonatal liver disease requiring surgical intervention.
• Bacterial cholangitis is a significant postoperative complication following biliary atresia repair.
• Understanding cholangitis incidence and risk factors is crucial for improving patient outcomes.

Purpose of the Study:

• To determine the incidence of bacterial cholangitis in infants undergoing surgery for biliary atresia.
• To identify associated factors and clinical manifestations of cholangitis.
• To evaluate the effectiveness of different surgical approaches and antibiotic use.

Main Methods:

• Retrospective study of 129 infants operated on for biliary atresia over 5 years.
• Analysis of hepatic portoenterostomy cases (n=101) for cholangitis episodes.
• Review of clinical data, laboratory results, microbiological cultures, and surgical procedures.

Main Results:

• Forty-six of 101 infants (45.5%) who had hepatic portoenterostomy experienced 105 episodes of cholangitis, mostly within 3 months post-operation.
• Associated factors included restored bile flow, abnormal intrahepatic bile ducts, and routine postoperative antibiotics.
• Gram-negative bacteria were the most common pathogens; initial susceptibility was to trimethoprim-sulfamethoxazole and cephalosporins, decreasing to cephalosporins for later episodes.
• External jejunostomy did not prevent cholangitis.

Conclusions:

• Bacterial cholangitis is a common complication after hepatic portoenterostomy for biliary atresia.
• Early postoperative period and factors like bile flow restoration are critical.
• Antibiotic resistance patterns evolve, necessitating careful selection of antimicrobial agents.
• Cholangitis episodes did not increase the risk of portal hypertension in patients with normal bilirubin levels at age 5.