Different types of hypercalciuria in patients with renal lithiasis and evidence of the calcium renal waste

B. Pinto
F.J. Ruiz-Marcellán
42

Abstract

A study of normal subjects and patients with hypercalciuria and recurrent renal stones has identified three main types of hypercalciuria: complex, absorptive and renal. Complex hypercalciuria is a combination of absorption, renal leak and resorption factors. Absorption and renal leak were examined by means of a 45Ca test. Resorption is defined as an increase of the urinary calcium:creatinine ratio while the subjects are being maintained on an intake of 400 mg of calcium per 24 h.

Keywords:
Calcium/metabolism/urine, Diuresis, Humans, Intestinal Absorption, Kidney Calculi/diagnosis/urine, Kidney Function Tests, Kidney/metabolism

Authors

B. Pinto
F.J. Ruiz-Marcellán


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