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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">epilepsia</journal-id><journal-title-group><journal-title xml:lang="en">Epilepsy and paroxysmal conditions</journal-title><trans-title-group xml:lang="ru"><trans-title>Эпилепсия и пароксизмальные состояния</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2077-8333</issn><issn pub-type="epub">2311-4088</issn><publisher><publisher-name>IRBIS LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17749/2077-8333.2020.12.1S.S50-S56</article-id><article-id custom-type="elpub" pub-id-type="custom">epilepsia-549</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EVENTS</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>СОБЫТИЯ</subject></subj-group></article-categories><title-group><article-title>Genetic epilepsy with febrile seizures plus (GEFS+)</article-title><trans-title-group xml:lang="ru"><trans-title>Генетическая эпилепсия  с фебрильными судорогами плюс (GEFS+)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0980-2638</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шарков</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sharkov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шарков Артем Алексеевич – научный сотрудник, врач-невролог</p><p>WoS ResearcherID: AAO-7543-2020;  SPIN-код: 8727-5997</p><p>ул. Талдомская, д. 2, Москва 125412</p></bio><bio xml:lang="en"><p>Artem A. Sharkov – MD, Research Associate, neurologist</p><p>WoS ResearcherID: AAO-7543-2020; SPIN-code: 8727-5997</p><p>2 Taldomskaya Str., Moscow 125412</p></bio><email xlink:type="simple">a.a.sharkov@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Обособленное структурное подразделение «Научно-исследовательский клинический институт педиатрии имени академика Ю.Е. Вельтищева Федерального государственного автономного образовательного учреждения высшего образования «Российский национальный исследовательский медицинский университет имени Н.И. Пирогова» Министерства здравоохранения  Российской Федерации»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Veltischev Research and Clinical Institute for Pediatrics of the Pirogov Russian National Research Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>28</day><month>07</month><year>2020</year></pub-date><volume>12</volume><issue>1S</issue><elocation-id>S50-S56</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Sharkov A.A., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Шарков А.А.</copyright-holder><copyright-holder xml:lang="en">Sharkov A.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.epilepsia.su/jour/article/view/549">https://www.epilepsia.su/jour/article/view/549</self-uri><abstract><p>Febrile seizures (FS) occur in about 2–3% of children aged 3 months to 5 years. Atypical febrile seizures are those with a focal component. Each subsequent febrile attack increases the risk of transformation into epilepsy. After the third febrile seizure, the risk of additional episodes of febrile seizures is already approaching 50%, and the risk of formation of epilepsy is 15.8%. Recent studies show the great contribution of genetic causes to the development of genetic epilepsy with febrile seizures plus (GEFS+). GEFS+ includes a combination of some febrile seizures with subsequent afebrile attack, or recurring febrile seizures after 6 years. The genetic causes of GEFS+ are both monogenic (in particular, disorders in the SCN1B, SCN1A, GABRG2, GABRD, SCN9A, STX1B, HCN1 genes, etc.) and copy number variations. Twin methods suggest that different genetic factors play a role in the case of FS, FS+ and FS with subsequent epilepsy. Genetic cause can be found in about 30% of cases, that affects not only the final diagnosis and prognosis for the patient, but also the prevention of disease in the family. In GEFS+ seizures are usually generalized tonic-clonic, less often myoclonic, myoclonic-atonic seizures, absences and status epilepticus, but sometimes they also describe focal seizures. The clinical picture of patients with GEFS+ varies from family febrile seizures (the least severe cases) to Drave-like syndrome (the most severe cases), although all of them have a predominantly normal level of intellect.</p></abstract><trans-abstract xml:lang="ru"><p>Фебрильные судороги (ФС) встречаются примерно у 2–3% детей в возрасте от 3 месяцев до 5 лет. Каждый последующий фебрильный приступ увеличивает риск трансформации в эпилепсию: после третьего фебрильного приступа риск дополнительных эпизодов ФС уже приближается примерно к 50%, а риск формирования эпилепсии составляет 15,8%. Последние исследования показывают большой вклад генетических причин в развитие генетической эпилепсии с фебрильными судорогами плюс (англ. – genetic epilepsy with febrile seizures plus, GEFS+), к которым относят сочетание любых фебрильных приступов с последующими афебрильными или повторяющиеся после шести лет фебрильные приступы. В основе GEFS+ лежат как моногенные причины (в частности, нарушения в генах SCN1B, SCN1A, GABRG2, GABRD, SCN9A, STX1B, HCN1 и др.), так и хромосомные перестройки. Близнецовые методы позволяют предположить, что при ФС, ФС+ и ФС с последующей эпилепсией играют роль разные генетические факторы. Генетическую причину удается обнаружить примерно в 30% случаев, что влияет не только на постановку окончательного диагноза и формирование прогноза для пациента, но и на профилактику заболевания в семье. При GEFS+ приступы, как правило, генерализованные тонико-клонические, реже – миоклонические, миоклонико-атонические приступы, абсансы и эпилептический статус, но иногда описывают и фокальные приступы. Клиническая картина пациентов с GEFS+ разнообразна: от семейных фебрильных судорог (наименее тяжелых случаев) до Драве-подобного фенотипа (наиболее тяжелых случаев), хотя их всех объединяет преимущественно нормальный уровень интеллекта.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Генетическая эпилепсия с фебрильными судорогами</kwd><kwd>GEFS+</kwd><kwd>SCN1B</kwd><kwd>SCN1A</kwd><kwd>GABRG2</kwd><kwd>GABRD</kwd><kwd>SCN9A</kwd><kwd>STX1B</kwd><kwd>HCN1</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Genetic epilepsy with febrile seizures plus</kwd><kwd>GEFS+</kwd><kwd>SCN1B</kwd><kwd>SCN1A</kwd><kwd>GABRG2</kwd><kwd>GABRD</kwd><kwd>SCN9A</kwd><kwd>STX1B</kwd><kwd>HCN1</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Nelson K. B., Ellenberg J. H. Predictors of epilepsy in children who have experienced febrile seizures. 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