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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">10.17749/2077-8333.2016.8.1.055-061</article-id><article-id custom-type="elpub" pub-id-type="custom">epilepsia-92</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>ORIGINAL ARTICLES</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group></article-categories><title-group><article-title>EPILEPSY IN INBORN ERRORS OF METABOLISM</article-title><trans-title-group xml:lang="ru"><trans-title>ЭПИЛЕПСИЯ   ПРИ ВРОЖДЕННЫХ ДЕФЕКТАХ  МЕТАБОЛИЗМА</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Белоусова</surname><given-names>Е. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Belousova</surname><given-names>E. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д. м.н., профессор, Заслуженный врач Российской Федерации. Отдел психоневрологии и эпилептологии Научно-исследовательского клинического института педиатрии ГБОУ ВПО «РНИМУ им. Н. Н. Пирогова» Минздрава РФ. Адрес: ул. Островитянова, д. 1, Москва, Россия, 117997. Тел.: +7(499)4833086</p></bio><bio xml:lang="en"><p>MD, Professor, Honored Doctor of the Russian Federation. Department psychoneurology Epileptology and Research Clinical Institute of the Russian National Research Medical University named after N. I. Pirogov. Address: ul. Ostrovityanova, 1, Moscow, Russia, 117997. Tel.: +7(499)4833086</p></bio><email xlink:type="simple">ebelousova@inbox.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ГБОУ ВПО «Российский национальный исследовательский медицинский университет им. Н. И. Пирогова» Минздрава РФ, Москва</institution><country>Россия</country></aff><aff xml:lang="en"><institution>The Russian National Research Medical University named after N. I. Pirogov of the Ministry of Health of the Russian Federation, Moscow</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>04</day><month>06</month><year>2016</year></pub-date><volume>8</volume><issue>1</issue><fpage>55</fpage><lpage>61</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Belousova E.D., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Белоусова Е.Д.</copyright-holder><copyright-holder xml:lang="en">Belousova E.D.</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/92">https://www.epilepsia.su/jour/article/view/92</self-uri><abstract><p>Epilepsy is a frequent and sometimes leading symptom in inborn errors of metabolism, especially in neonatal or infantile ones. Early myoclonic encephalopathy and myoclonus as a seizure type are the prototypes of epilepsy in inherited metabolic diseases. But clinical presentation also includes refractory neonatal seizures, Ohtahara syndrome, infantile spasms and progressive myoclonic epilepsy. Clinical manifestations seems to be similar in different etiology and in majority of cases look like unspecific epileptic encephalopathy. Selected treatable inborn errors of metabolism are discussed alongside with diagnostic approach to inherited metabolic epilepsies. Probably it’s better to avoid the treatment with valproic acid in clinical situations when etiology is unclear. Alternative use of levetiracetam is recommended. Besides the antiepileptic drugs we can also make pyridoxine, pyridoxal-5-phosphate and folinic acid consequent trials for 3-5 days before our diagnostic quest succeed.</p></abstract><trans-abstract xml:lang="ru"><p>Эпилепсия — частый симптом врожденных дефектов метаболизма, особенно тех, которые начинаются в неонатальном и младенческом возрасте. Она может быть первым, а иногда и ведущим симптомом заболевания. Ранняя миоклоническая энцефалопатия и миоклонии, как тип эпилептического приступа, являются прототипом эпилепсии при врожденных дефектах метаболизма. Но эпилепсия может проявляться и резистентными к терапии неонатальными судорогами, синдромом Отахара, инфантильными спазмами, а также фенотипом прогрессирующей миоклонус-эпилепсии. Большинство эпилепсий при врожденных дефектах метаболизма текут как эпилептические энцефалопатии и фенотипически схожи. Обсуждаются отдельные курабельные дефекты метаболизма, их диагностика и лечение. Приводится алгоритм лабораторной диагностики наследственных метаболических эпилепсий. Возможно, следует избегать назначения вальпроата в тех ситуациях, когда мы не знаем, каким врожденным дефектом метаболизма страдает ребенок. Альтернативой вальпроату является леветирацетам, высоко эффективный при миоклонических приступах. При неклассифицированных дефектах метаболизма с эпилептической энцефалопатией имеет смысл пробное последовательное назначение в течение 3-5 дней пиридоксина, пиридоксальфосфата, биотина и фолиевой кислоты.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Дети</kwd><kwd>эпилепсия</kwd><kwd>эпилептические энцефалопатии</kwd><kwd>врожденные дефекты метаболизма</kwd><kwd>диагностика</kwd><kwd>лечение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Children</kwd><kwd>epilepsy</kwd><kwd>inborn errors of metabolism</kwd><kwd>epileptic encephalopaties</kwd><kwd>clinical approach to</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">Михайлова С. В., Захарова Е. Ю., Ильина Е. С., Петрухин А. С. Диагностика и лечение недостаточности биотинидазы у детей раннего возраста. Лечащий врач. 2005; 6: 79-82.</mixed-citation><mixed-citation xml:lang="en">Mikhailova S. V., Zakharova E. 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