Neuromyelitis Optica Spectrum Disorders: a Nationwide Portuguese Clinical Epidemiological Study
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Publication Date: | 2021 |
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article |
Language: | eng |
Source: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Download full: | http://hdl.handle.net/10400.17/3964 |
Summary: | Introduction: Neuromyelitis optica spectrum disorder (NMOSD) is a rare disorder in which astrocyte damage and/or demyelination often cause severe neurological deficits. Objective: To identify Portuguese patients with NMOSD and assess their epidemiological/clinical characteristics. Methods: This was a nationwide multicenter study. Twenty-four Portuguese adult and 3 neuropediatric centers following NMOSD patients were included. Results: A total of 180 patients met the 2015 Wingerchuk NMOSD criteria, 77 were AQP4-antibody positive (Abs+), 67 MOG-Abs+, and 36 seronegative. Point prevalence on December 31, 2018 was 1.71/100,000 for NMOSD, 0.71/100,000 for AQP4-Abs+, 0.65/100,000 for MOG-Abs+, and 0.35/100,000 for seronegative NMOSD. A total of 44 new NMOSD cases were identified during the two-year study period (11 AQP4-Abs+, 27 MOG-Abs+, and 6 seronegative). The annual incidence rate in that period was 0.21/100,000 person-years for NMOSD, 0.05/100,000 for AQP4-Abs+, 0.13/100,000 for MOG-Abs+, and 0.03/100,000 for seronegative NMOSD. AQP4-Abs+ predominated in females and was associated with autoimmune disorders. Frequently presented with myelitis. Area postrema syndrome was exclusive of this subtype, and associated with higher morbidity/mortality than other forms of NMOSD. MOG-Ab+ more often presented with optic neuritis, required less immunosuppression, and had better outcome. Conclusion: Epidemiological/clinical NMOSD profiles in the Portuguese population are similar to other European countries. |
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Neuromyelitis Optica Spectrum Disorders: a Nationwide Portuguese Clinical Epidemiological StudyCHLC NEUAdultFemaleHumansAquaporin 4AutoantibodiesEpidemiologic StudiesMyelin-Oligodendrocyte GlycoproteinNeuromyelitis Optica* / epidemiologyPortugal / epidemiologyIntroduction: Neuromyelitis optica spectrum disorder (NMOSD) is a rare disorder in which astrocyte damage and/or demyelination often cause severe neurological deficits. Objective: To identify Portuguese patients with NMOSD and assess their epidemiological/clinical characteristics. Methods: This was a nationwide multicenter study. Twenty-four Portuguese adult and 3 neuropediatric centers following NMOSD patients were included. Results: A total of 180 patients met the 2015 Wingerchuk NMOSD criteria, 77 were AQP4-antibody positive (Abs+), 67 MOG-Abs+, and 36 seronegative. Point prevalence on December 31, 2018 was 1.71/100,000 for NMOSD, 0.71/100,000 for AQP4-Abs+, 0.65/100,000 for MOG-Abs+, and 0.35/100,000 for seronegative NMOSD. A total of 44 new NMOSD cases were identified during the two-year study period (11 AQP4-Abs+, 27 MOG-Abs+, and 6 seronegative). The annual incidence rate in that period was 0.21/100,000 person-years for NMOSD, 0.05/100,000 for AQP4-Abs+, 0.13/100,000 for MOG-Abs+, and 0.03/100,000 for seronegative NMOSD. AQP4-Abs+ predominated in females and was associated with autoimmune disorders. Frequently presented with myelitis. Area postrema syndrome was exclusive of this subtype, and associated with higher morbidity/mortality than other forms of NMOSD. MOG-Ab+ more often presented with optic neuritis, required less immunosuppression, and had better outcome. Conclusion: Epidemiological/clinical NMOSD profiles in the Portuguese population are similar to other European countries.ElsevierRepositório do Centro Hospitalar Universitário de Lisboa Central, EPESantos, ERocha, ALOliveira, VFerro, DSamões, RSousa, APFigueiroa, SMendonça, TAbreu, PGuimarães, JSousa, RMelo, CCorreia, IDurães, JSousa, LFerreira, JSá, JSousa, FSequeira, MCorreia, ASAndré, ALBasílio, CArenga, MMendes, IBrás Marques, IPerdigão, SFelgueiras, HAlves, ICorreia, FBarroso, CMorganho, ACarmona, CPalavra, FSantos, MSalgado, VPalos, ANzwalo, HTimóteo, AGuerreiro, RIsidoro, LBoleixa, DCarneiro, PNeves, EMartins Silva, AGonçalves, GLeite, MISá, MJ2022-01-21T16:21:04Z20212021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.17/3964engMult Scler Relat Disord. 2021 Nov;56:103258.10.1016/j.msard.2021.103258.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-10T09:44:44Zoai:repositorio.chlc.min-saude.pt:10400.17/3964Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:21:16.292108Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Neuromyelitis Optica Spectrum Disorders: a Nationwide Portuguese Clinical Epidemiological Study |
title |
Neuromyelitis Optica Spectrum Disorders: a Nationwide Portuguese Clinical Epidemiological Study |
spellingShingle |
Neuromyelitis Optica Spectrum Disorders: a Nationwide Portuguese Clinical Epidemiological Study Santos, E CHLC NEU Adult Female Humans Aquaporin 4 Autoantibodies Epidemiologic Studies Myelin-Oligodendrocyte Glycoprotein Neuromyelitis Optica* / epidemiology Portugal / epidemiology |
title_short |
Neuromyelitis Optica Spectrum Disorders: a Nationwide Portuguese Clinical Epidemiological Study |
title_full |
Neuromyelitis Optica Spectrum Disorders: a Nationwide Portuguese Clinical Epidemiological Study |
title_fullStr |
Neuromyelitis Optica Spectrum Disorders: a Nationwide Portuguese Clinical Epidemiological Study |
title_full_unstemmed |
Neuromyelitis Optica Spectrum Disorders: a Nationwide Portuguese Clinical Epidemiological Study |
title_sort |
Neuromyelitis Optica Spectrum Disorders: a Nationwide Portuguese Clinical Epidemiological Study |
author |
Santos, E |
author_facet |
Santos, E Rocha, AL Oliveira, V Ferro, D Samões, R Sousa, AP Figueiroa, S Mendonça, T Abreu, P Guimarães, J Sousa, R Melo, C Correia, I Durães, J Sousa, L Ferreira, J Sá, J Sousa, F Sequeira, M Correia, AS André, AL Basílio, C Arenga, M Mendes, I Brás Marques, I Perdigão, S Felgueiras, H Alves, I Correia, F Barroso, C Morganho, A Carmona, C Palavra, F Santos, M Salgado, V Palos, A Nzwalo, H Timóteo, A Guerreiro, R Isidoro, L Boleixa, D Carneiro, P Neves, E Martins Silva, A Gonçalves, G Leite, MI Sá, MJ |
author_role |
author |
author2 |
Rocha, AL Oliveira, V Ferro, D Samões, R Sousa, AP Figueiroa, S Mendonça, T Abreu, P Guimarães, J Sousa, R Melo, C Correia, I Durães, J Sousa, L Ferreira, J Sá, J Sousa, F Sequeira, M Correia, AS André, AL Basílio, C Arenga, M Mendes, I Brás Marques, I Perdigão, S Felgueiras, H Alves, I Correia, F Barroso, C Morganho, A Carmona, C Palavra, F Santos, M Salgado, V Palos, A Nzwalo, H Timóteo, A Guerreiro, R Isidoro, L Boleixa, D Carneiro, P Neves, E Martins Silva, A Gonçalves, G Leite, MI Sá, MJ |
author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório do Centro Hospitalar Universitário de Lisboa Central, EPE |
dc.contributor.author.fl_str_mv |
Santos, E Rocha, AL Oliveira, V Ferro, D Samões, R Sousa, AP Figueiroa, S Mendonça, T Abreu, P Guimarães, J Sousa, R Melo, C Correia, I Durães, J Sousa, L Ferreira, J Sá, J Sousa, F Sequeira, M Correia, AS André, AL Basílio, C Arenga, M Mendes, I Brás Marques, I Perdigão, S Felgueiras, H Alves, I Correia, F Barroso, C Morganho, A Carmona, C Palavra, F Santos, M Salgado, V Palos, A Nzwalo, H Timóteo, A Guerreiro, R Isidoro, L Boleixa, D Carneiro, P Neves, E Martins Silva, A Gonçalves, G Leite, MI Sá, MJ |
dc.subject.por.fl_str_mv |
CHLC NEU Adult Female Humans Aquaporin 4 Autoantibodies Epidemiologic Studies Myelin-Oligodendrocyte Glycoprotein Neuromyelitis Optica* / epidemiology Portugal / epidemiology |
topic |
CHLC NEU Adult Female Humans Aquaporin 4 Autoantibodies Epidemiologic Studies Myelin-Oligodendrocyte Glycoprotein Neuromyelitis Optica* / epidemiology Portugal / epidemiology |
description |
Introduction: Neuromyelitis optica spectrum disorder (NMOSD) is a rare disorder in which astrocyte damage and/or demyelination often cause severe neurological deficits. Objective: To identify Portuguese patients with NMOSD and assess their epidemiological/clinical characteristics. Methods: This was a nationwide multicenter study. Twenty-four Portuguese adult and 3 neuropediatric centers following NMOSD patients were included. Results: A total of 180 patients met the 2015 Wingerchuk NMOSD criteria, 77 were AQP4-antibody positive (Abs+), 67 MOG-Abs+, and 36 seronegative. Point prevalence on December 31, 2018 was 1.71/100,000 for NMOSD, 0.71/100,000 for AQP4-Abs+, 0.65/100,000 for MOG-Abs+, and 0.35/100,000 for seronegative NMOSD. A total of 44 new NMOSD cases were identified during the two-year study period (11 AQP4-Abs+, 27 MOG-Abs+, and 6 seronegative). The annual incidence rate in that period was 0.21/100,000 person-years for NMOSD, 0.05/100,000 for AQP4-Abs+, 0.13/100,000 for MOG-Abs+, and 0.03/100,000 for seronegative NMOSD. AQP4-Abs+ predominated in females and was associated with autoimmune disorders. Frequently presented with myelitis. Area postrema syndrome was exclusive of this subtype, and associated with higher morbidity/mortality than other forms of NMOSD. MOG-Ab+ more often presented with optic neuritis, required less immunosuppression, and had better outcome. Conclusion: Epidemiological/clinical NMOSD profiles in the Portuguese population are similar to other European countries. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021 2021-01-01T00:00:00Z 2022-01-21T16:21:04Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.17/3964 |
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http://hdl.handle.net/10400.17/3964 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Mult Scler Relat Disord. 2021 Nov;56:103258. 10.1016/j.msard.2021.103258. |
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info:eu-repo/semantics/openAccess |
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openAccess |
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Elsevier |
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Elsevier |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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