La Crosse Encephalitis in Children

Abstract
McJunkin et al. (March 15 issue)1 report that in patients with La Crosse encephalitis who have clinical deterioration, it follows the development of hyponatremia. This observation underscores the danger of administering hypotonic maintenance fluids in children. The hyponatremia in these patients may have been iatrogenic, since they presented with normal serum sodium levels.