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<article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Russian Journal of Child Neurology</journal-id><journal-title-group><journal-title xml:lang="en">Russian Journal of Child Neurology</journal-title><trans-title-group xml:lang="ru"><trans-title>Русский журнал детской неврологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2073-8803</issn><issn publication-format="electronic">2412-9178</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">434</article-id><article-id pub-id-type="doi">10.17650/2073-8803-2023-18-1-52-56</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CLINICAL OBSERVATIONS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЕ НАБЛЮДЕНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Idiopathic autoimmune encephalitis with a recurrent course. A case report</article-title><trans-title-group xml:lang="ru"><trans-title>Идиопатический аутоиммунный энцефалит с рецидивирующим течением: клинический случай</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4763-4428</contrib-id><name-alternatives><name xml:lang="en"><surname>Davletova</surname><given-names>A. B.</given-names></name><name xml:lang="ru"><surname>Давлетова</surname><given-names>А. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>10/2 Rodionovskaya St., Moscow 123466</p></bio><bio xml:lang="ru"><p>123466 Москва, ул. Родионовская, 10/2</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8731-2565</contrib-id><name-alternatives><name xml:lang="en"><surname>Ryabchenko</surname><given-names>A. Yu.</given-names></name><name xml:lang="ru"><surname>Рябченко</surname><given-names>А. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Аleksandr Yuryevich Ryabchenko</p><p>Sovetskaya St., Orenburg 460000</p></bio><bio xml:lang="ru"><p>Александр Юрьевич Рябченко</p><p>460000 Оренбург, ул. Советская, 6</p></bio><email>nevrolog2007@inbox.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">City Polyclinic № 219 of the Moscow Health Department</institution></aff><aff><institution xml:lang="ru">ГБУЗ «Городская поликлиника № 219 Департамента здравоохранения г. Москвы»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Orenburg State Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Оренбургский государственный медицинский университет» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-01-15" publication-format="electronic"><day>15</day><month>01</month><year>2023</year></pub-date><volume>18</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>52</fpage><lpage>56</lpage><history><date date-type="received" iso-8601-date="2023-06-26"><day>26</day><month>06</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-06-26"><day>26</day><month>06</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, ABV-Press</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, АБВ-пресс</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">ABV-Press</copyright-holder><copyright-holder xml:lang="ru">АБВ-пресс</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://rjdn.abvpress.ru/jour/about/editorialPolicies</ali:license_ref></license></permissions><self-uri xlink:href="https://rjdn.abvpress.ru/jour/article/view/434">https://rjdn.abvpress.ru/jour/article/view/434</self-uri><abstract xml:lang="en"><p>We presented a clinical case of idiopathic autoimmune brainstem encephalitis in a 12-year-old female patient. At the onset of the disease, which developed after a respiratory infection, the clinical picture was accompanied by oculomotor and bulbar syndromes. The diagnosis of Bickerstaff brainstem encephalitis was made based on clinical diagnostic criteria and the positive effect of the course of intravenous immunoglobulin therapy. During 3 years of follow-up, there were periods of relapse of the disease, during which symptoms not typical for Bickerstaff stem encephalitis appeared. Against the background of long-term immunosuppressive therapy, there was a long-term remission of about 2 years. The clinical picture, the presence of relapses, the data of additional methods forced to reconsider the diagnosis in favor of idiopathic autoimmune brainstem encephalitis.</p></abstract><trans-abstract xml:lang="ru"><p>В статье представлено описание клинического случая идиопатического аутоиммунного стволового энцефалита у пациентки 12 лет. В дебюте заболевания, развившегося после перенесенной респираторной инфекции, клиническая картина сопровождалась глазодвигательными и бульбарными синдромами. Диагноз стволового энцефалита Бикерстаффа был установлен на основании клинических критериев диагностики и положительного эффекта от курса внутривенной иммуноглобулинотерапии. На протяжении 3 лет наблюдения за пациенткой отмечались периоды рецидивов болезни, во время которых появлялись симптомы, нехарактерные для стволового энцефалита Бикерстаффа. На фоне длительной иммуносупрессивной терапии отмечалась продолжительная ремиссия около 2 лет. Клиническая картина, наличие рецидивов, данные дополнительных методов заставили пересмотреть диагноз в пользу идиопатического аутоиммунного стволового энцефалита.</p></trans-abstract><kwd-group xml:lang="en"><kwd>idiopathic autoimmune encephalitis</kwd><kwd>clinical case</kwd><kwd>brainstem encephalitis</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>идиопатический аутоиммунный энцефалит</kwd><kwd>клинический случай</kwd><kwd>стволовой энцефалит</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Davydovskaya M.V., Boyko A.N., Belyaeva I.A, et al. Autoimmune encephalitis. Zhurnal nevrologii I psihiatrii im. S.S. Korsakova = S.S. Korsakov Journal of Neurology and Psychiatry 2015;115(4):95–101. (In Russ.). DOI: 10.17116/jnevro20151154195-101</mixed-citation><mixed-citation xml:lang="ru">Давыдовская М.В., Бойко А.Н., Беляева И.А. и др. Аутоиммунные энцефалиты. 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