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J Pediatr. 1995 Dec;127(6):913-9.

IgA nephropathy: long-term prognosis for pediatric patients.

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1
Department of Pediatrics, University of Tennessee, Memphis 38103, USA.

Abstract

OBJECTIVE:

The determination of the ultimate prognosis for patients with IgA nephropathy diagnosed in childhood requires long-term follow-up of identified patients. The purpose of this study was to obtain such follow-up for patients from two centers where the disease has been diagnosed for more than 20 years.

METHODS:

Clinical data at the apparent onset of symptoms and renal histologic data were obtained for 103 patients in whom IgA nephropathy was diagnosed before age 18 years. Clinical status at last follow-up was obtained from office records or from direct contact with the patient. Predicted kidney survival was determined by the Kaplan-Meier method. Follow-up of more than 10 years from the time of biopsy was available for 40 of the patients.

RESULTS:

Fourteen of the patients have progressed to end-stage renal disease; three others have progressive chronic renal insufficiency as defined by an estimated creatinine clearance of less than 50 ml/min per 1.73 m2. Severity of the renal histologic findings and the degree of proteinuria at the time of biopsy were associated with poor outcome. For all patients, predicted kidney survival from the time of apparent onset was 94% at 5 years, 87% at 10 years, 82% at 15 years, and 70% at 20 years. Age at clinical onset and gender were not associated with poor outcome, but black race and severity of renal histologic findings were.

CONCLUSION:

With follow-up into adulthood, the outcome for pediatric patients with IgA nephropathy appears to be as serious as that reported in adult patients. Follow-up of a pediatric patient with persistent clinical findings should be maintained after the patient's care is transferred to a physician caring for adults.

PMID:
8523188
[Indexed for MEDLINE]

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