[Hypokalemic metabolic alkalosis with hypomagnesemia and hypocalciuria; Bartter's syndrome in Gitelman's variant--case report].

A case is presented of a 30-year old man with long-term history of painful muscle cramps, episodes of tetany, general malaise and persistent hypokaliemia. On the ground of clinical appearance and biochemical data the Bartter's syndrome in Gitelman's variant was diagnosed. In differential diagnosis we considered renal tubular acidosis, other tubular defects (Liddle's syndrome), primary and secondary hyperaldosteronism. Other possible causes of hypokaliemia were excluded such as surreptitious diuretic and lexative abuse, persistent vomiting and diarrhea. Good therapeutic effect were achieve using spironolacton, indomethacin, propranolol and potassium supplementation.