Annals of neurology · 2006
Neuromyelitis optica IgG predicts relapse after longitudinally extensive transverse myelitis.
Сравнительное исследованиеСтатьяНазвание и аннотация: Перевод пока не подготовлен
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Weinshenker Brian G, Wingerchuk Dean M, Vukusic Sandra, Linbo Linda, Pittock Sean J, Lucchinetti Claudia F, Lennon Vanda A
Аннотация
OBJECTIVE: We investigated whether neuromyelitis optica (NMO) IgG seropositivity at the initial presentation of longitudinally extensive transverse myelitis (LETM) predicts relapse of myelitis or development of optic neuritis.
METHODS: Prospective study of patients with initial LETM who were tested for the presence of NMO-IgG.
RESULTS: Eleven of 29 patients (37.9%) were seropositive after a first attack of LETM spanning three or more vertebral segments on magnetic resonance imaging. Of 23 patients followed up for 1 year, none of 14 who were seronegative experienced a relapse or developed optic neuritis. Of 9 seropositive patients, 5 developed a second event: 4 of 9 (44%) developed recurrent transverse myelitis and 1 of 9 (11%) developed optic neuritis (p = 0.004).
INTERPRETATION: LETM represents an inaugural or limited form of NMO in a high proportion of patients. The 40% of patients who are seropositive for NMO-IgG are at high risk for relapse.
METHODS: Prospective study of patients with initial LETM who were tested for the presence of NMO-IgG.
RESULTS: Eleven of 29 patients (37.9%) were seropositive after a first attack of LETM spanning three or more vertebral segments on magnetic resonance imaging. Of 23 patients followed up for 1 year, none of 14 who were seronegative experienced a relapse or developed optic neuritis. Of 9 seropositive patients, 5 developed a second event: 4 of 9 (44%) developed recurrent transverse myelitis and 1 of 9 (11%) developed optic neuritis (p = 0.004).
INTERPRETATION: LETM represents an inaugural or limited form of NMO in a high proportion of patients. The 40% of patients who are seropositive for NMO-IgG are at high risk for relapse.