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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="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">nid</journal-id><journal-title-group><journal-title xml:lang="ru">Нефрология и диализ</journal-title><trans-title-group xml:lang="en"><trans-title>Nephrology and Dialysis</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1680-4422</issn><issn pub-type="epub">2618-9801</issn><publisher><publisher-name>Российское диализное общество</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.28996/2618-9801-2024-2-186-203</article-id><article-id custom-type="elpub" pub-id-type="custom">nid-169</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Определение скорости клубочковой фильтрации у детей и подростков: теоретические и практические аспекты</article-title><trans-title-group xml:lang="en"><trans-title>Determination of glomerular filtration rate in children and adolescents: theoretical and practical aspects</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5860-856X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Байко</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Baiko</surname><given-names>S. V.</given-names></name></name-alternatives><email xlink:type="simple">baiko@yandex.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/0000-0001-9880-1188</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кулакова</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kulakova</surname><given-names>E. N.</given-names></name></name-alternatives><email xlink:type="simple">elena.n.kulakova@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3699-1884</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Аксёнова</surname><given-names>М. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Aksenova</surname><given-names>M. E.</given-names></name></name-alternatives><email xlink:type="simple">maksyonova@pedklin.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1974-8241</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шумихина</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shumikhina</surname><given-names>M. V.</given-names></name></name-alternatives><email xlink:type="simple">marina.shumikhina@gmail.com</email><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6096-1784</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Настаушева</surname><given-names>Т. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Nastausheva</surname><given-names>T. L.</given-names></name></name-alternatives><email xlink:type="simple">nastat53@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>УО «Белорусский государственный медицинский университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Belarusian State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО «Воронежский государственный медицинский университет имени Н.Н. Бурденко» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N.N. Burdenko Voronezh State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ФГАОУ ВО РНИМУ им. Н.И. Пирогова Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pirogov Russian National Research Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>ГБУЗ «Детская городская клиническая больница им. Н.Ф. Филатова ДЗМ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>N.F. Filatov Moscow City Children’s Clinical Hospital of the Moscow Department of Healthcare</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>02</day><month>07</month><year>2024</year></pub-date><volume>26</volume><issue>2</issue><fpage>186</fpage><lpage>203</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Байко С.В., Кулакова Е.Н., Аксёнова М.Е., Шумихина М.В., Настаушева Т.Л., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Байко С.В., Кулакова Е.Н., Аксёнова М.Е., Шумихина М.В., Настаушева Т.Л.</copyright-holder><copyright-holder xml:lang="en">Baiko S.V., Kulakova E.N., Aksenova M.E., Shumikhina M.V., Nastausheva T.L.</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://journal.nephro.ru/jour/article/view/169">https://journal.nephro.ru/jour/article/view/169</self-uri><abstract><p>Скорость клубочковой фильтрации (СКФ) является основным показателем, характеризующим функцию почек. Целью работы явилась систематизация данных по методам измерения и расчета СКФ в детской популяции с разработкой алгоритма действий для единого подхода и более точного определения СКФ. В статье обсуждаются методы измерения с помощью экзогенных и эндогенных маркеров клубочковой фильтрации и уравнения расчета СКФ (рСКФ), преимущества и ограничения их использования. Подробно описываются эндогенные маркеры СКФ - сывороточный креатинин и цистатин С. Подчеркивается, что в современных формулах рСКФ используются значения этих маркеров, полученные только стандартизованными методами. Для стандартизации измерения концентрации креатинина применяется эталонный метод - тандемная масс-спектрометрия с изотопным разбавлением (isotope dilution mass spectrometry, IDMS) и калибраторы со стандартным эталонным материалом (SRM) креатинина с присвоением сертификационного кода NIST (для креатинина NIST SRM 967). Переход лабораторий на измерение концентрации креатинина со стандартизацией по IDMS послужил толчком к модернизации уже имевшихся формул и появлению новых уравнений для расчета СКФ. Подробно описываются международные рекомендации для первичной оценки почечной функции с использованием креатинина крови и рСКФ, а при определенных обстоятельствах, когда рСКФ по креатинину дает менее точный результат, предлагается включать дополнительные уточняющие тесты. Важной составляющей статьи является подробное описание расчетных формул СКФ в историческом аспекте и обоснование преимущественного использования в настоящее время уравнений CKiD U25 и EKFC. Отдельные разделы работы посвящены особенностям оценки СКФ у детей раннего возраста, подростков и молодых взрослых. Выделены частные вопросы определения СКФ, а именно: у детей с тяжелыми соматическими, онкогематологическими заболеваниями, хроническими инфекциями, а также у пациентов, находящихся в критическом состоянии. В заключении приводится четкий алгоритм выбора формулы для расчета СКФ и последовательность проведения уточняющих тестов в случае необходимости.</p></abstract><trans-abstract xml:lang="en"><p>Glomerular filtration rate (GFR) is the main indicator of kidney function. The purpose of the work was to systematize data on methods for measuring and calculating GFR in the pediatric population and develop an algorithm for a unified approach and a more accurate determination of GFR. The article discusses measurement methods using exogenous and endogenous markers of glomerular filtration and equations for calculating GFR (eGFR), advantages the and limitations of their use. The endogenous markers of GFR: serum creatinine and cystatin C are described in detail. It is emphasized that modern eGFR formulas use the values of these markers obtained only by standardized methods. To standardize the measurement of creatinine concentration, a reference method is used - isotope dilution mass spectrometry (IDMS) and calibrators with a standard reference material (SRM) for creatinine with the assignment of a NIST certification code (for creatinine NIST SRM 967). The transition of laboratories to measuring creatinine concentrations with standardization according to IDMS served as an impetus for the modernization of existing formulas and the emergence of new equations for calculating GFR. International recommendations for the initial assessment of renal function using blood creatinine and eGFR are described in detail, and in certain circumstances where eGFR based on creatinine is less accurate, it is suggested that additional clarifying tests be included. An important component of the article is a detailed description of the GFR calculation formulas in the historical aspect and the rationale for the predominant use of the CKiD U25 and EKFC equations at present. Separate sections of the work are devoted to the peculiarities of assessing GFR in young children, adolescents, and young adults. Particular issues of determining GFR are highlighted, namely: in children with severe somatic, oncohematological diseases, and chronic infections, as well as in patients in critical condition. The conclusion provides a clear algorithm for choosing a formula for calculating GFR and the sequence of conducting clarifying tests if necessary.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>скорость клубочковой фильтрации (СКФ)</kwd><kwd>дети и подростки</kwd><kwd>маркеры СКФ</kwd><kwd>уравнения расчета СКФ</kwd><kwd>креатинин</kwd><kwd>цистатин С</kwd><kwd>CKiD U25</kwd><kwd>glomerular filtration rate (GFR)</kwd><kwd>children and adolescents</kwd><kwd>GFR markers</kwd><kwd>GFR calculation equations</kwd><kwd>creatinine</kwd><kwd>cystatin C</kwd><kwd>CKiD U25</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">Inker L.A., Titan S. Measurement and Estimation of GFR for Use in Clinical Practice: Core Curriculum 2021. Am J Kidney Dis. 2021. 78(5):736-749. doi: 10.1053/j.ajkd.2021.04.016</mixed-citation><mixed-citation xml:lang="en">Inker L.A., Titan S. 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