Clinical and pathological features and the misdiagnosis of childhood Alport syndrome: a retrospective analysis of 91 cases / 中国当代儿科杂志
Chinese Journal of Contemporary Pediatrics
;
(12): 371-375, 2017.
Artigo
em Chinês
| WPRIM
| ID: wpr-351342
ABSTRACT
<p><b>OBJECTIVE</b>To explore the clinical and pathological features and the diagnosis of childhood Alport syndrome (AS).</p><p><b>METHODS</b>A retrospective analysis was performed on clinical data of 91 children with AS.</p><p><b>RESULTS</b>Hematuria was observed in all 91 patients, of whom 86 were accompanied with proteinuria. Sixty-one children with X-Linked AS (XL-AS) had positive family history. Renal biopsy was performed on 82 children. Mild to moderate mesangial proliferation was observed in 74 cases. Small amounts of immune complexes deposits in the glomerular mesangial area were observed in 48 cases. Glomerular basement membrane (GBM) attenuation, thickening and layering were observed in 53 cases by electron microscopy (EM). In 63 cases receiving renal tissue type IV collagen α3 and α5 chain immunofluorescence detection, 58 were diagnosed with AS, including 53 cases of XL-AS and 5 cases of autosomal recessive AS. In 91 cases of AS, 58 were diagnosed as AS by renal tissue type IV collagen α3 and α5 chain immunofluorescence, 21 were diagnosed by EM, one was diagnosed by skin biopsy, and 12 were diagnosed by gene detection. Six novel mutations of COL4A5 gene were found. Forty-five cases were misdiagnosed before the diagnosis of AS. Forty-one of the 45 cases received steroids and/or immunosuppressant therapy.</p><p><b>CONCLUSIONS</b>The clinical manifestations and pathological changes are not specific in children with AS, resulting in a higher rate of misdiagnosis. Typical lesions of GBM under EM are only observed in a part of patients. There is a high novel mutation rate of COL4A5 in the detected AS children.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Patologia
/
Estudos Retrospectivos
/
Colágeno Tipo IV
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Diagnóstico
/
Erros de Diagnóstico
/
Membrana Basal Glomerular
/
Genética
/
Nefrite Hereditária
Tipo de estudo:
Estudo diagnóstico
/
Estudo observacional
Limite:
Criança
/
Criança, pré-escolar
/
Feminino
/
Humanos
/
Masculino
Idioma:
Chinês
Revista:
Chinese Journal of Contemporary Pediatrics
Ano de publicação:
2017
Tipo de documento:
Artigo
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