Hypervolemic hyponatremia and transplant‐free survival in children with cirrhosis due to biliary atresia

BACKGROUND: Biliary atresia is the number one cause of cirrhosis and liver transplantation in children. Hyponatremia is the most important electrolytic disturbance observed in decompensated cirrhosis. Studies of hyponatremia in cirrhotic children are scarce and those that exist have defined hyponatremia as serum sodium /=7 days. This was a single-center, historical cohort that included all patients aged