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Giornale italiano di nefrologia : organo ufficiale della Società italiana di nefrologia 2015-Dec

[Nephrocalcinosis in children].

Články mohou překládat pouze registrovaní uživatelé
Přihlášení Registrace
Odkaz je uložen do schránky
Maria Michela D'Alessandro
Giovanni Pavone
Maria Cristina Castiglione
Anna Maria Tranchida
Maria Chiara Sapia
Rosa Cusumano
Ciro Corrado
Rosa Mongiovì
Silvio Maringhini

Klíčová slova

Abstraktní

Nephrocalcinosis (NC) is a renal disease characterized by deposition of calcium salts into the renal medulla. There are several causes, organic, iatrogenic, hereditary and sometimes related to extrarenal diseases. We studied 34 children affected by NC, 21 M and 13 F (average age at diagnosis 7.8 months), with the aim of analyzing the associated diseases, clinical manifestations, metabolic abnormalities, growth and renal function at onset and after follow-up. At onset 70% of patients were asymptomatic and diagnosis was occasional. Renal function was normal in 33 patients. The most frequent clinical symptoms were failure to thrive (9%), abdominal pain (6%), proteinuria/hematuria (7%). The associated diseases were: tubulopathies (8 pcs - tubular acidosis, Dent, Bartter and Lowe Syndromes), medullary sponge kidney, policalicosis (3 pcs ), Short bowel Syndrome (3 pcs), hyperparathyroidism, hypothyroidism (2 pcs), thalassemia (1pc), tyrosinemia (1 pc.). We recognized two forms of hypervitaminosis D. In a pc NC would be correlated with prematurity, another one with lipid necrosis. Among the metabolic abnormalities, observed in 25% of pcs, hyperoxaluria is the most frequent (47%), hypercalciuria (20%), hypercalcemia (15%). In some cases we found endocrine non pathogenic alterations: hypovitaminosis D (2 pcs) and hypoparathyroidism (6 pcs). During follow-up the growth was normal in 87% of cases and glomerular function was stable in 90% of pcs; IRC developed in 3 cases. From our analysis, it appears that the treatment of the underlying condition of NC is associated with catch-up growth and stabilization of renal function in most patients, but not with the reduction of the degree of the NC.

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