Abstract
We report two cases of neonates with complex congenital heart disease and volume,
catecholamine, and corticosteroid refractory shock treated with arginine–vasopressin.
Arginine–vasopressin was able to reverse critical hypotension, but both patients developed
severe hyponatremia, which recovered after discontinuation of arginine–vasopressin.
Close control and prompt substitution of serum sodium is required in neonates with
advanced heart failure on high-dose vasopressin therapy.
Keywords
arginine–vasopressin - refractory shock - hypotension - hyponatremia - congenital
heart disease