PMID- 23593747 OWN - NLM STAT- MEDLINE DCOM- 20130924 LR - 20180222 IS - 0029-0831 (Print) IS - 0029-0831 (Linking) VI - 45 IP - 1 DP - 2013 Jan TI - [An 8-year-old boy with anti-NMDA receptor encephalitis, successfully treated with cyclophosphamide]. PG - 53-7 AB - We report on an 8-year-old boy with non-paraneoplastic anti-NMDA receptor (NMDAR) encephalitis, who presented with psychotic symptoms and involuntary movement following an intractable seizure. His serum and CSF tested positive for anti-NMDAR antibodies. He received an initial immunotherapy consisting of methylprednisolone pulse therapy (mPSL) and intravenous immunoglobulin therapy (IVIg), without any clinical improvement. He had three cycles of monthly cyclophosphamide pulse therapy (500 mg/m2), and his clinical condition started to improve gradually two weeks after the first cycle, without any side effects. Six months after onset, he tested normal upon standard neurological examination. Cyclophosphamide therapy should be considered for children with anti-NMDAR encephalitis, as well as mPSL and IVIg. FAU - Mitani, Tadahiro AU - Mitani T AD - Division of Neurology, Kanagawa Children's Medical Center, Yokohama, Kanagawa. FAU - Ohtsuka, Yoshimitsu AU - Ohtsuka Y FAU - Yamamoto, Kei AU - Yamamoto K FAU - Watanabe, Yoshihiro AU - Watanabe Y FAU - Tsuji, Megumi AU - Tsuji M FAU - Samejima, Kiyoko AU - Samejima K FAU - Aida, Noriko AU - Aida N FAU - Sato, Takeshi AU - Sato T FAU - Wada, Takahito AU - Wada T FAU - Osaka, Hitoshi AU - Osaka H LA - jpn PT - Case Reports PT - English Abstract PT - Journal Article PL - Japan TA - No To Hattatsu JT - No to hattatsu = Brain and development JID - 0215224 RN - 0 (Immunoglobulins, Intravenous) RN - 0 (Receptors, N-Methyl-D-Aspartate) RN - 8N3DW7272P (Cyclophosphamide) SB - IM MH - Anti-N-Methyl-D-Aspartate Receptor Encephalitis/diagnosis/*drug therapy MH - Child MH - Cyclophosphamide/*therapeutic use MH - Humans MH - Immunoglobulins, Intravenous/*therapeutic use MH - Male MH - Receptors, N-Methyl-D-Aspartate/*immunology MH - Treatment Outcome EDAT- 2013/04/19 06:00 MHDA- 2013/09/26 06:00 CRDT- 2013/04/19 06:00 PHST- 2013/04/19 06:00 [entrez] PHST- 2013/04/19 06:00 [pubmed] PHST- 2013/09/26 06:00 [medline] PST - ppublish SO - No To Hattatsu. 2013 Jan;45(1):53-7.