Involvement of cranial nerves in ATTR Ile127Val amyloidosis

The involvement of cranial nerves is rare in ATTR amyloidosis. However, involvement has occasionally been reported in the p.Val50Met variant, the most commonly studied worldwide. On the other hand, in ATTR p.Ile127Val, an uncommon variant, the cranial nerves IX, X, and XII, are frequently involved....

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Detalhes bibliográficos
Autores: Batista, Jemima A. da Silva [UNESP], Carrera, Luiza R., Viriato, Adriele R.F., Novaes, Marco Antônio C., Morais, Renato José L. de, Oliveira, Francisco T.O., Marques, Wilson [UNESP], Machado-Costa, Marcela Câmara
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:Brasil
Recursos:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/240099
Acesso em linha:http://dx.doi.org/10.1016/j.ejmg.2022.104524
http://hdl.handle.net/11449/240099
Access Level:acceso abierto
Palavra-chave:Amyloidosis
ATTR
Bulbar involvement
Cranial nerve
Ile107Val
Polyneuropathy
Descrição
Resumo:The involvement of cranial nerves is rare in ATTR amyloidosis. However, involvement has occasionally been reported in the p.Val50Met variant, the most commonly studied worldwide. On the other hand, in ATTR p.Ile127Val, an uncommon variant, the cranial nerves IX, X, and XII, are frequently involved. Here, we present a series of cases of ATTR Ile107Val amyloidosis, in which the involvement of multiple cranial nerves V, VII, IX, X, XI, and XII seems to be routinely included in phenotypic manifestations in different phases of clinical evolution, contributing significantly to the resulting disabilities caused by this variant. The recognition of these manifestations enables earlier diagnoses and reduces complications from the involvement of cranial nerves, such as dysphagia and respiratory impairment, which greatly increase the burden caused by the disease and significantly limit the quality of life.