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Einstein (Säo Paulo) ; 14(1): 30-34, Jan.-Mar. 2016. tab, graf
Article in English | LILACS | ID: lil-778498

ABSTRACT

ABSTRACT Objective To investigate chromosomal abnormalities by CGH-array in patients with dysmorphic features and intellectual disability with normal conventional karyotype. Methods Retrospective study, carried out from January 2012 to February 2014, analyzing the CGH-array results of 39 patients. Results Twenty-six (66.7%) patients had normal results and 13 (33.3%) showed abnormal results - in that, 6 (15.4%) had pathogenic variants, 6 (15.4%) variants designated as uncertain and 1 (2.5%) non-pathogenic variants. Conclusion The characterization of the genetic profile by CGH-array in patients with intellectual disability and dysmorphic features enabled making etiologic diagnosis, followed by genetic counseling for families and specific treatment.


RESUMO Objetivo Avaliar microalterações cromossômicas por CGH-array em portadores de dismorfias e deficiência intelectual com cariótipo normal. Métodos Estudo retrospectivo, realizado no período de janeiro de 2012 a fevereiro de 2014, analisando os resultados de CGH-array de 39 pacientes. Resultados Apresentaram resultados normais 26 (66,7%) pacientes; 13 (33,3%) tiveram resultados alterados, a saber: 6 (15,4%) com variantes patogênicas, 6 (15,4%) com variantes pertencentes à categoria designada como incerta, e 1 (2,5%) com variantes não patogênicas. Conclusão A caracterização do perfil genético por CGH-array nos pacientes com deficiência intelectual e dismorfias possibilitou complementar o diagnóstico etiológico, permitindo a realização do aconselhamento genético para as famílias e tratamento específico.


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Adolescent , Young Adult , Chromosomes, Human, Pair 6/genetics , Chromosome Aberrations/classification , Comparative Genomic Hybridization/methods , Intellectual Disability/genetics , Retrospective Studies , Karyotype
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