PMID- 22215241 OWN - NLM STAT- MEDLINE DCOM- 20130604 LR - 20221207 IS - 1432-1459 (Electronic) IS - 0340-5354 (Linking) VI - 259 IP - 8 DP - 2012 Aug TI - When is neuromyelitis optica diagnosed after disease onset? PG - 1600-5 LID - 10.1007/s00415-011-6384-3 [doi] AB - To diagnose neuromyelitis optica (NMO), the 2006 NMO diagnostic criteria is commonly used. However, adequate studies about the time course of NMO according to the criteria have been lacking. The aim of the study was to identify the interval between disease onset and diagnosis of NMO, as well as the clinical characteristics and time course, according to the 2006 NMO diagnostic criteria in Japanese patients with NMO. Clinical progression and time course of 43 Japanese patients with NMO who fulfilled the 2006 NMO diagnostic criteria with mean disease duration of 14.2 years were investigated retrospectively. The initial inflammatory event was myelitis in 44.2% (long extensive transverse myelitis [LETM] in 14.3%), optic neuritis in 41.9%, and concurrent myelitis and optic neuritis in 9.3% of the patients. The presence of LETM and anti-aquaporin-4 antibody seropositivity by the end of the observation period was found in 85.7 and 93.0% of the patients, respectively. Among the patients whose medical information were sufficiently available, the median intervals between NMO onset and the time until development of both optic neuritis and myelitis, LETM, or fulfillment of the 2006 NMO criteria were 16.5, 35.1, and 27.8 months, respectively. The development of diagnostic method at an early stage of NMO may be needed in order to initiate early treatment. FAU - Uzawa, Akiyuki AU - Uzawa A AD - Department of Neurology, Graduate School of Medicine, Chiba University, 1-8-1, Inohana, Chuo-ku, Chiba 260-8670, Japan. a-uzimp1204@umin.ac.jp FAU - Mori, Masahiro AU - Mori M FAU - Muto, Mayumi AU - Muto M FAU - Masuda, Saeko AU - Masuda S FAU - Kuwabara, Satoshi AU - Kuwabara S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120104 PL - Germany TA - J Neurol JT - Journal of neurology JID - 0423161 SB - IM MH - Adolescent MH - Adult MH - Age of Onset MH - Aged MH - Asian People/*ethnology MH - Cohort Studies MH - Female MH - Follow-Up Studies MH - Humans MH - Male MH - Middle Aged MH - Neuromyelitis Optica/*diagnosis/*ethnology MH - Retrospective Studies MH - Time Factors MH - Young Adult EDAT- 2012/01/05 06:00 MHDA- 2013/06/05 06:00 CRDT- 2012/01/05 06:00 PHST- 2011/10/07 00:00 [received] PHST- 2011/12/15 00:00 [accepted] PHST- 2012/01/05 06:00 [entrez] PHST- 2012/01/05 06:00 [pubmed] PHST- 2013/06/05 06:00 [medline] AID - 10.1007/s00415-011-6384-3 [doi] PST - ppublish SO - J Neurol. 2012 Aug;259(8):1600-5. doi: 10.1007/s00415-011-6384-3. Epub 2012 Jan 4.