Title: Quadriparesis due to Gitelman′s syndrome diagnosed with thiazide diuretic test response
Abstract: Gitelman's syndrome is characterized by hypocalciuria, severe hypomagnesemia, and prominent muscular involvements such as fatigue, weakness, cramps, and tetany. It is due to mutations in the thiazide sensitive NaCl co-transporter in the distal convoluted tubule. The administration of thiazide diuretics may induce a subnormal increase of urinary Cl(-) excretion in patients with Gitelman's syndrome, consistent with the hypothesis that less than normal Cl(-) is reabsorbed by the thiazide-inhibitable transporter in Gitelman's syndrome. Thus, we report a case of Gitelman's syndrome presenting with quadriparesis diagnosed by using thiazide clearance test.