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Correction of hypokalemia with antialdosterone therapy in Gitelman s syndrome #MMPMID8080005
Colussi G; Rombola G; De Ferrari ME; Macaluso M; Minetti L
Am J Nephrol 1994[]; 14 (2): 127-35 PMID8080005show ga
Six adult patients (4 females and 2 males, age range 26-57 years) with Gitelman's syndrome (GS) were treated with spironolactone 200-300 mg/day (n = 5) and/or amiloride 10-30 mg/day (n = 3) for 1-18 months. The patients had hypokalemia, hyperreninemia, chloride-resistant metabolic alkalosis, renal hypomagnesemia (n = 5), and hypocalciuria (n = 5). Free water clearance studies during maximal water diuresis and furosemide administration were suggestive of a solute reabsorptive defect beyond the loop of Henle. Antialdosterone therapy induced a significant increase of PK (from 2.6 +/- 0.4 to 3.4 +/- 0.4 mM; p < 0.0001) and a decrease of CK (from 21.4 +/- 13.2 to 10.6 +/- 4.8 ml/min, p < 0.02) and FEK (from 21.0 +/- 13.6 to 13.4 +/- 5.7%; p < 0.03); PMg increased from 1.38 +/- 0.38 to 1.64 +/- 0.21 mg/dl (p < 0.03) with a parallel fall of CMg (from 5.5 +/- 2.3 to 2.9 +/- 1.5 ml/min; p < 0.02) and FEMg (from 5.7 +/- 2.6 to 2.9 +/- 0.6%; p < 0.05); arterial blood pH and HCO3- did not change (P = plasma, C = clearance, FE = fractional excretion). The creatinine clearance fell (from 90.5 +/- 16.8 to 65.8 +/- 20.9 ml/min; p < 0.05), and Prenin rose (from 16.6 +/- 8.9 to 35.3 +/- 25.3 ng/ml/h; p < 0.02, as did Paldo (from 26.1 +/- 12.3 to 109 +/- 82.6 ng/dl; p < 0.01), indicating extracellular fluid volume contraction; however no significant clinical symptoms of hypovolemia ensued.(ABSTRACT TRUNCATED AT 250 WORDS)
Am+J+Nephrol 1994 ; 14 (2): 127-35
