[Differential diagnosis of hypokalemia--Bartter's syndrome: clinical aspects and therapy].

The case histories of 2 children with the typical characteristics of Bartter's syndrome are reported. The differential diagnosis from other forms of hypokalaemia, as well as pathophysiology and clinical manifestations of this syndrome are presented. The therapeutic effect of indomethacin, an inhibitor of prostaglandin synthesis, is discussed; side effects of this treatment are pointed out.