| \ ˈbärt-ər-
or Bartter's syndrome \
: a genetic kidney disorder that is marked by impaired reabsorption of sodium with excessive urinary loss of sodium and water accompanied by hypokalemic alkalosis, aldosteronism, elevated levels of renin in the blood, nephrocalcinosis, and hyperplasia of juxtaglomerular cells
Bartter syndrome is an uncommon cause of salt-wasting hypokalemic alkalosis in which calcium excretion is normal or increased. — William L. Nyhan, in Inherited Metabolic Diseases: A Clinical Approach, 2010 Bartter's syndrome, an inherited malady, upsets the kidney's control of body chemistry.— Paul G. Donohue, The Chattanooga (Tennessee) Times Free Press, 5 May 1999
There are several variants of Bartter syndrome, including a life-threatening form evident at birth and a somewhat less severe form with onset during early childhood. Bartter syndrome is inherited as an autosomal recessive trait requiring that both parents pass on a copy of the defective gene on a chromosome other than a sex chromosome.