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Arq Neuropsiquiatr. 2013 May;71(5):275-9.

Patients with neuromyelitis optica have a more severe disease than patients with relapsingremitting multiple sclerosis, including higher risk of dying of a demyelinating disease.

Author information

1
Setor de Neuroimunologia, Universidade Federal de São Paulo (UNIFESP), São Paulo SP, Brazil. bichuetti@unifesp.br

Abstract

Although neuromyelitis optica (NMO) is known to be a more severe disease than relapsing-remitting multiple sclerosis (RRMS), few studies comparing both conditions in a single center have been done.

METHODS:

Comparison of our previously published cohort of 41 NMO patients with 177 RRMS patients followed in the same center, from 1994 to 2007.

RESULTS:

Mean age of onset was 32.6 for NMO and 30.2 for RRMS (p=0.2062) with mean disease duration of 7.4 years for NMO and 10.3 years for RRMS. Patients with NMO had a higher annualized relapse rate (1.0 versus 0.8, p=0.0013) and progression index (0.9 versus 0.6, p<0.0001), with more patients reaching expanded disability status scale (EDSS) 6.0 (39 versus 17%, p=0.0036). The odds ratio for reaching EDSS 6.0 and being deceased due to NMO in comparison to RRMS were, respectively, 3.14 and 12.15.

CONCLUSION:

Patients with NMO have a more severe disease than patients with RRMS, including higher risk of dying of a demyelinating disease.

PMID:
23689404
[Indexed for MEDLINE]
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