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Related Experiment Videos

Membranous glomerulonephropathy in childhood.

J Wiggelinkhuizen, C Sinclair-Smith

    South African Medical Journal = Suid-Afrikaanse Tydskrif Vir Geneeskunde
    |August 1, 1987
    PubMed
    Summary

    Membranous nephropathy (MGN) is more common in South African Black and mixed-race children with nephrotic syndrome. Hepatitis B virus infection is a key cause, and treatment with immunosuppressants is ineffective.

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    Area of Science:

    • Pediatric Nephrology
    • Infectious Diseases
    • Glomerular Diseases

    Background:

    • Membranous nephropathy (MGN) presents with nephrotic syndrome and is more prevalent in South African Black and mixed-race children compared to developed nations.
    • MGN is notably absent in White and Asiatic children with nephrotic syndrome in this population.

    Purpose of the Study:

    • To investigate the prevalence and etiological factors of membranous nephropathy (MGN) in South African children presenting with nephrotic syndrome.
    • To evaluate the prognosis and treatment efficacy for childhood MGN in this specific demographic.

    Main Methods:

    • A survey of 388 children with nephrotic syndrome was conducted.
    • Etiological factors, including viral infections and autoimmune conditions, were documented.
    • Patient outcomes were tracked over an average follow-up of 4.5 years.

    Main Results:

    • MGN was diagnosed in 51.9% of Black boys and 25% of Black girls, and 20.9% of mixed-race boys and 5.6% of mixed-race girls.
    • Hepatitis B virus infection was identified in 73% of cases, with congenital syphilis, lupus erythematosus, and bacterial endocarditis as other identified causes.
    • An overall remission rate of 78% was observed, with a mean time to remission of 30 months. Immunosuppressive therapies showed no benefit and potential harm.

    Conclusions:

    • The high incidence of MGN in South African children is linked to prevalent infections, suggesting socio-economic factors are more influential than ethnicity.
    • Prognosis for childhood MGN is generally favorable and better than in adults with idiopathic MGN, with infections being a primary driver.
    • Standard immunosuppressive treatments are ineffective and potentially detrimental for childhood MGN in this population.

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