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KMID : 0377819970170010100
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Diagnosis and Treatment
1997 Volume.17 No. 1 p.100 ~ p.104
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CLINICAL IMPORTANCE OF DETERMINIATION OF URINARY EXCRETION VALUE IN CHILDREN WITH IDIOPATHIC HEMATURIA
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Abstract
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Hypercalciuria has -become a significant clinical focus for pediatric urologist ´since it was suggested that increased urinary calcium excretion is the most common abnormality in children with idiopathic hematuria.
The most common clinical presentation of the patient with idiopathic hematuria is gross or microscopic isolated hematuria without any other symptoms. To elucidate the prevalence and clinical presentation of idiopathic hematuria and to evaluate the importance of urinary calcium excretion value in this disease, we have retrospectively studied 80 pediatric patients(53 males, 27 females) with previously diagnosed as idiopathic hematuria. Hypercalciuria was defined as a urinary calcium excretion value more than 4mg/kg/day. Renal hypercalciuria was defined -as a fasting urinary oalciumcreatinine ratio greater´ than 0.21. We have identified hypercalciuria in 19(24%) of 80 children with idiopathic hematuria. Among the cases of normocalciuria, 23 out of 61 patients had gross hematuria, the others had only microhematuria. Compare to the patients with normocalciuria among 19 patients with hypercalciuria, 13 had gross hematuria (p <.0.05) and 18 out of 19 were male (p < 0.05). Among the hypercalciuric patients, absorptive hypercalciuria was found in 12 children, whereas 7 had renal hypercalciuria. We concluded that determination of urinary calcium excretion value is required in the routine evaluation of children with idiopathic hematuria especially male children with gross hematuria..
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