2001
DOI: 10.1590/s0021-75572001000200009
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Hipercalciúria idiopática: apresentação de 471 casos

Abstract: Objective: to analyze the clinical history and evolution of children and adolescents with IH, emphasizing some of their peculiar features.Methods: we followed 471 patients with IH at an outpatient clinic. Patients were submitted to the following protocol: abdominal X-ray, kidney and urinary tract ultrasonography; urinary ionogram, blood gas and biochemical analyses; 24-hour urine for measurement of calcium and other electrolytes and creatinine; urinalysis, urine culture and phase-contrast microscopy; second mo… Show more

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Cited by 4 publications
(9 citation statements)
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(22 reference statements)
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“…In studies performed in patients with IH, 24 h urinary calcium excretion rate was over 4 mg/kg/ day initially whereas these values regressed to normal during follow-up. In a study involving 472 patients carried out by Penido et al (31), 24 h calcium excretion in urine was 6.67 mg/kg/day at the time of their admission, but this value reduced to 2.28 mg/ kg/day after 10 year-follow-up. In a study including 176 patients with IH by Polito et al (32), while 24 h urinary calcium excretion rate was 6.1 mg/kg/day at the time of admission, it decreased to 4 mg/kg/day during follow-up.…”
Section: Discussionmentioning
confidence: 92%
“…In studies performed in patients with IH, 24 h urinary calcium excretion rate was over 4 mg/kg/ day initially whereas these values regressed to normal during follow-up. In a study involving 472 patients carried out by Penido et al (31), 24 h calcium excretion in urine was 6.67 mg/kg/day at the time of their admission, but this value reduced to 2.28 mg/ kg/day after 10 year-follow-up. In a study including 176 patients with IH by Polito et al (32), while 24 h urinary calcium excretion rate was 6.1 mg/kg/day at the time of admission, it decreased to 4 mg/kg/day during follow-up.…”
Section: Discussionmentioning
confidence: 92%
“…Na infância, a excreção é considerada aumentada quando o cálcio urinário é maior ou igual a 4mg/kg em 24 horas, em pelo menos uma de três amostras colhidas em dias não consecutivos. Outro parâmetro de diagnóstico é a relação cálcio/creatinina (Ca/Cr) maior que 0,21 em amostra de urina matinal e em jejum (1)(2)(3) .…”
Section: Introductionunclassified
“…Hematúria macro e microscópica e/ou dor abdominal são achados clínicos comuns descritos em pacientes hipercalciúricos (4,5) . Entretanto, outros sinais e sintomas como disúria, urgência, incontinência urinária, dor suprapúbica ou uretral e, às vezes, infecção urinária sugerem a pesquisa de hipercalciúria idiopática (2) . A hipercalciúria idiopática é freqüentemente encontrada na nefrolitíase, acometendo, em média, 50% dos pacientes pediátricos litiásicos (2,6,7) .…”
Section: Introductionunclassified
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