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Arq. neuropsiquiatr ; 74(12): 953-966, Dec. 2016. tab, graf
Article in English | LILACS | ID: biblio-828003

ABSTRACT

ABSTRACT Hematopoietic stem cell transplantation (HSCT) is the only available treatment for the neurological involvement of disorders such as late-onset metachromatic leukodystrophy (MLD), mucopolysaccharidosis type I-Hurler (MPS-IH), and X-linked cerebral adrenoleukodystrophy (CALD). Objective To describe survival and neurological outcomes after HSCT for these disorders. Methods Seven CALD, 2 MLD and 2 MPS-IH patients underwent HSCT between 2007 and 2014. Neurological examinations, magnetic resonance imaging, molecular and biochemical studies were obtained at baseline and repeated when appropriated. Results Favorable outcomes were obtained with 4/5 related and 3/6 unrelated donors. Two patients died from procedure-related complications. Nine transplanted patients were alive after a median of 3.7 years: neurological stabilization was obtained in 5/6 CALD, 1/2 MLD, and one MPS-IH patient. Brain lesions of the MPS-IH patient were reduced four years after HSCT. Conclusion Good outcomes were obtained when HSCT was performed before adulthood, early in the clinical course, and/or from a related donor.


RESUMO O transplante de células tronco hematopoiéticas (TCTH) é o único tratamento disponível para o envolvimento neurológico de doenças como a leucodistrofia metacromática (MLD), a mucopolissacaridose tipo I-Hurler (MPS-IH) e a adrenoleucodistrofia (CALD). Objetivos Descrever a sobrevida e os desfechos neurológicos após o TCTH nessas doenças. Métodos Sete pacientes CALD, 2 MLD e 2 MPS-IH realizaram TCTH entre 2007 e 2014. Avaliações neurológicas, ressonância nuclear magnética e estudos bioquímicos e moleculares foram feitos no baseline e repetidos quando apropriado. Resultados Desfechos favoráveis foram obtidos em 4/5 TCTH de doadores relacionados e em 3/6 não relacionados. Dois pacientes faleceram de complicações do procedimento. Nove transplantados sobreviveram após uma mediana de 3,7 anos: estabilização neurológica foi obtida em 5/6 CALD, ½ MLD e em um caso MPS-IH. As lesões encefálicas de um caso MPS-IH reduziram-se quatro anos após o TCTH. Conclusão Bons desfechos foram obtidos quando o TCTH foi feito antes da vida adulta, cedo no curso clínico e/ou a partir de um doador relacionado.


Subject(s)
Humans , Male , Female , Child, Preschool , Child , Adolescent , Adult , Young Adult , Mucopolysaccharidosis I/surgery , Hematopoietic Stem Cell Transplantation/mortality , Adrenoleukodystrophy/surgery , Leukodystrophy, Metachromatic/surgery , Pedigree , Tissue Donors , Brain/pathology , Brain/diagnostic imaging , Brazil/epidemiology , Magnetic Resonance Imaging , Retrospective Studies , Treatment Outcome , Mucopolysaccharidosis I/genetics , Mucopolysaccharidosis I/mortality , Age of Onset , Adrenoleukodystrophy/genetics , Adrenoleukodystrophy/mortality , Transplantation Conditioning/methods , White Matter/diagnostic imaging , Leukodystrophy, Metachromatic/genetics , Leukodystrophy, Metachromatic/mortality
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