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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">234</article-id><article-id pub-id-type="doi">10.17650/2073-8803-2017-12-4-43-49</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">Paroxysmal disorders in children receiving substitution therapy with vitamin B12</article-title><trans-title-group xml:lang="ru"><trans-title>Пароксизмальные нарушения у детей при заместительной терапии витамином B12</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Barkhatov</surname><given-names>M. V.</given-names></name><name xml:lang="ru"><surname>Бархатов</surname><given-names>М. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Partizana Zheleznyaka St., Krasnoyarsk 660022; 2A Akademika Kirenskogo St., Krasnoyarsk 660074.</p></bio><bio xml:lang="ru"><p>660022 Красноярск, ул. Партизана Железняка, 1; 660074 Красноярск, ул. Академика Киренского, 2А.</p></bio><email>bmv73@mail.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Falaleeva</surname><given-names>S. O.</given-names></name><name xml:lang="ru"><surname>Фалалеева</surname><given-names>С. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>2A Akademika Kirenskogo St., Krasnoyarsk 660074;  1 Partizana Zheleznyaka St., Krasnoyarsk 660022.</p></bio><bio xml:lang="ru"><p>660074 Красноярск, ул. Академика Киренского, 2А;  660022 Красноярск, ул. Партизана Железняка, 1.</p></bio><xref ref-type="aff" rid="aff3"/><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shishkina</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Шишкина</surname><given-names>Е. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>1 Partizana Zheleznyaka St., Krasnoyarsk 660022.</p></bio><bio xml:lang="ru"><p>660022 Красноярск, ул. Партизана Железняка, 1.</p></bio><xref ref-type="aff" rid="aff5"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Denisova</surname><given-names>Yu. E.</given-names></name><name xml:lang="ru"><surname>Денисова</surname><given-names>Ю. Е.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>2A Akademika Kirenskogo St., Krasnoyarsk 660074.</p></bio><bio xml:lang="ru"><p>660074 Красноярск, ул. Академика Киренского, 2А.</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Borisova</surname><given-names>E. V.</given-names></name><name xml:lang="ru"><surname>Борисова</surname><given-names>Е. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>2A Akademika Kirenskogo St., Krasnoyarsk 660074.</p></bio><bio xml:lang="ru"><p>660074 Красноярск, ул. Академика Киренского, 2А.</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Krasitskiy</surname><given-names>A. I.</given-names></name><name xml:lang="ru"><surname>Красицкий</surname><given-names>А. И.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>2A Akademika Kirenskogo St., Krasnoyarsk 660074.</p></bio><bio xml:lang="ru"><p>660074 Красноярск, ул. Академика Киренского, 2А.</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Makarevskaya</surname><given-names>N. Yu.</given-names></name><name xml:lang="ru"><surname>Макаревская</surname><given-names>Н. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>2A Akademika Kirenskogo St., Krasnoyarsk 660074.</p></bio><bio xml:lang="ru"><p>660074 Красноярск, ул. Академика Киренского, 2А.</p></bio><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Department of Nervous System Diseases and Medical Rehabilitation, Faculty of General Medicine, Prof. V.F. Voyno-Yasenetskiy Krasnoyarsk State Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">Кафедра нервных болезней, медицинской реабилитации с курсом ПО лечебного факультета ФГБОУ ВО  «Красноярский государственный медицинский университет им. проф. В.Ф. Войно-Ясенецкого» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Krasnoyarsk Regional Clinical Center of Maternity and Childhood.</institution></aff><aff><institution xml:lang="ru">КГБУЗ «Красноярский краевой клинический центр охраны материнства и детства».</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Krasnoyarsk Regional Clinical Center of Maternity and Childhood</institution></aff><aff><institution xml:lang="ru">КГБУЗ «Красноярский краевой клинический центр охраны материнства и детства»</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Department of Childhood Diseases, Faculty of Pediatrics, Prof. V.F. Voyno-Yasenetskiy Krasnoyarsk State Medical University,  Ministry of Health of Russia.</institution></aff><aff><institution xml:lang="ru">Кафедра детских болезней с курсом ПО педиатрического факультета ФГБОУ ВО  «Красноярский государственный медицинский университет им. проф. В.Ф. Войно-Ясенецкого» Минздрава России.</institution></aff></aff-alternatives><aff-alternatives id="aff5"><aff><institution xml:lang="en">Department of Nervous System Diseases and Medical Rehabilitation, Faculty of General Medicine, Prof. V.F. Voyno-Yasenetskiy Krasnoyarsk State Medical University, Ministry of Health of Russia.</institution></aff><aff><institution xml:lang="ru">Кафедра нервных болезней, медицинской реабилитации с курсом ПО лечебного факультета ФГБОУ ВО  «Красноярский государственный медицинский университет им. проф. В.Ф. Войно-Ясенецкого» Минздрава России.</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2017-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2017</year></pub-date><volume>12</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>43</fpage><lpage>49</lpage><history><date date-type="received" iso-8601-date="2018-01-19"><day>19</day><month>01</month><year>2018</year></date><date date-type="accepted" iso-8601-date="2018-01-19"><day>19</day><month>01</month><year>2018</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2017, ABV-Press</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2017, АБВ-пресс</copyright-statement><copyright-year>2017</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/234">https://rjdn.abvpress.ru/jour/article/view/234</self-uri><abstract xml:lang="en"><p>Congenital deficiency of vitamin B12 in children is a frequent metabolic disorder in pediatric practice. The disease has multiple symptoms, including various somatic and nervous manifestations. The main symptom of vitamin B12 deficiency is the regression of psychomotor development with significant trophic impairments and changes in the internal organs. Without substitution therapy with vitamin B12, these children quickly develop irreversible disorders that can lead to death, whereas timely parenteral administration of vitamin B12 can ensure the restoration of the initial development level. We describe a patient aged 1 y. o. 4 months, who was diagnosed with vitamin B12 deficiency anemia and general vitamin B12 deficiency at the age of 8 months; as a result, the child developed various paroxysms that were considered to be epileptic. The patients started to receive vitamin B12 and antiepileptic drugs, which helped to achieve clinical remission with normal psychomotor development.</p></abstract><trans-abstract xml:lang="ru"><p>Врожденный дефицит витамина В12 у детей – нередкое нарушение метаболизма, известное в педиатрической практике. Клинические симптомы этого заболевания многообразны и включают различные проявления как со стороны соматической, так и нервной системы. Основной признак В12-дефицита – регресс психомоторного развития с выраженными трофическими нарушениями и изменениями со стороны внутренних органов. При отсутствии своевременной заместительной терапии витамином В12  у детей быстро наступают необратимые нарушения, которые могут привести к летальному исходу, но своевременное парентеральное введение витамина В12  может восстановить исходный уровень развития. Авторы представляют наблюдение пациента в возрасте 1 год 4 мес, у которого в возрасте 8 мес были диагностированы В12-дефицитная анемия и В12-дефицитное состояние и назначена терапия витамином В12. На этом фоне у ребенка развились различные пароксизмы, которые были расценены как эпилептические, и на фоне лечения антиэпилептическими препаратами была достигнута клиническая ремиссия с нормальным психомоторным развитием ребенка.</p></trans-abstract><kwd-group xml:lang="en"><kwd>vitamin B12 deficiency</kwd><kwd>substitution therapy with vitamin B12</kwd><kwd>seizures in response to vitamin В12 injections</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>дефицит витамина В12</kwd><kwd>заместительная терапия витамином В12</kwd><kwd>приступы на фоне введения витамина В12</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">1. Заболевания нервной системы у детей. В 2 т. Т. 1. 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