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<article article-type="review-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="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">jsms</journal-id><journal-title-group><journal-title xml:lang="ru">Journal of Siberian Medical Sciences</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of Siberian Medical Sciences</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2542-1174</issn><publisher><publisher-name>Federal state budgetary educational institution of higher education "Novosibirsk state medical university" of  Ministry of Health of the Russian Federation (FSBEI HE NSMU MOH Russia)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31549/2542-1174-2025-9-4-133-144</article-id><article-id custom-type="elpub" pub-id-type="custom">jsms-1282</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="ru"><subject>ОБЗОРЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>REVIEW</subject></subj-group></article-categories><title-group><article-title>Особенности и сложности медицинского сопровождения  пациентов при постановке клинического диагноза  наследственных болезней обмена, входящих в группу  расширенного неонатального скрининга (на примере  клинического случая изовалериановой ацидемии)</article-title><trans-title-group xml:lang="en"><trans-title>Features and diffi  culties of medical supportive care for patients  in making a clinical diagnosis of hereditary metabolic diseases  from the group of extended neonatal screening  (exemplified by a clinical case of isovaleric acidemia)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3144-4889</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Панова</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Panova</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p> Панова Марина Сергеевна –  канд. мед. наук, ассистент кафедры педиатрии и неонатологии </p><p>630091, г. Новосибирск, Красный просп., 52.</p></bio><bio xml:lang="en"><p>Marina S. Panova – Cand. Sci. (Med.), Assistant, Departments of Pediatrics and Neonatology</p><p> Novosibirsk </p></bio><email xlink:type="simple">merik2002@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4234-9353</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Белоусова</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Belousova</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Белоусова Тамара Владимировна –  д-р мед. наук, профессор, заведующий кафедрой педиатрии и неонатологии; руководитель педиатрической клиники</p><p> Новосибирск</p></bio><bio xml:lang="en"><p>Tamara V. Belousova – Dr. Sci. (Med.), Professor, Head, Departments of Pediatrics and Neonatology</p><p>Novosibirsk</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0340-5842</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Андрюшина</surname><given-names>И. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Andryushina</surname><given-names>I. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Андрюшина Ирина Владимировна – канд. мед. наук, доцент кафедры педиатрии и неонатологии </p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Irina V. Andryushina – Cand. Sci. (Med.), Associate Professor, Departments of Pediatrics and Neonatology</p><p>Novosibirsk </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-2831-0921</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лебедева</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Lebedeva</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лебедева Анастасия Владимировна – ассистент кафедры педиатрии и неонатологии ; врач-неонатолог отделения патологии новорожденных и недоношенных детей</p><p>Новосибирск</p></bio><bio xml:lang="en"><p>Anastasia V. Lebedeva – Assistant, Departments of Pediatrics and Neonatology</p><p> Novosibirsk</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Новосибирский государственный медицинский университет» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Novosibirsk State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО «Новосибирский государственный медицинский университет» Минздрава России; ГБУЗ НСО «Государственная Новосибирская областная клиническая больница»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Novosibirsk State Medical University; Novosibirsk State Regional Clinical Hospital</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>26</day><month>12</month><year>2025</year></pub-date><volume>0</volume><issue>4</issue><fpage>133</fpage><lpage>144</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Панова М.С., Белоусова Т.В., Андрюшина И.В., Лебедева А.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Панова М.С., Белоусова Т.В., Андрюшина И.В., Лебедева А.В.</copyright-holder><copyright-holder xml:lang="en">Panova M.S., Belousova T.V., Andryushina I.V., Lebedeva A.V.</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://jsms.elpub.ru/jour/article/view/1282">https://jsms.elpub.ru/jour/article/view/1282</self-uri><abstract><p>Внедрение расширенного неонатального скрининга (РНС) в медицинскую практику в Российской Федерации (РФ), в соответствии с приказом Министерства здравоохранения РФ № 274н от 21.04.2022 «Об утверждении порядка оказания медицинской помощи пациентам с врожденными и (или) наследственными заболеваниями», существенно повысило выявляемость наследственных болезней обмена веществ (НБО) у детей. Однако, ввиду ряда причин, диагностика орфанных заболеваний по-прежнему сопряжена с большими трудностями.</p><p>В этом обзоре мы представляем имеющиеся на настоящий момент сведения об изовалериановой ацидемии/ацидурии (ИВА) – одной из НБО, входящих в группу РНС. Рассматриваются вопросы эпидемиологии, этиопатогенеза, клинической манифестации, диагностики и лечения этого орфанного заболевания. В качестве иллюстрации особенностей медицинского сопровождения педиатрических пациентов с предварительным положительным результатом РНС по ИВА и сложностей на пути к верификации диагноза представляем случай из собственной практики.</p></abstract><trans-abstract xml:lang="en"><p>Introducing expanded neonatal screening (ENS) into medical practice in the Russian Federation (RF), in accordance with the Order of the Ministry of Health of the RF No. 274n dated 21.04.2022 “On approval of the procedure for providing medical care to patients with congenital and (or) hereditary diseases”, significantly increased the detection of hereditary metabolic diseases (HMDs) in children. However, due to several reasons, the diagnosis of orphan diseases is still fraught with great difficulties.</p><p>In this review, we present the currently available data on isovaleric acidemia/aciduria (IVA), one of the HMDs from the ENS group of diseases. The issues of epidemiology, etiopathogenesis, clinical manifestation, diagnosis and treatment of this orphan disease are considered. As an illustration of the features of medical supportive care for pediatric patients with a preliminary positive ENS for IVA, and the difficulties at the stage of verifying the diagnosis, we present a case from our own practice.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>изовалериановая ацидемия</kwd><kwd>расширенный неонатальный скрининг</kwd><kwd>наследственные болезни  обмена</kwd><kwd>орфанная патология</kwd></kwd-group><kwd-group xml:lang="en"><kwd>isovaleric acidemia</kwd><kwd>advanced neonatal screening</kwd><kwd>hereditary metabolic diseases</kwd><kwd>orphan diseases</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">Воронин С.В., Захарова Е.Ю., Байдакова Г.В. и др. 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