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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">endofocus</journal-id><journal-title-group><journal-title xml:lang="ru">FOCUS Эндокринология</journal-title><trans-title-group xml:lang="en"><trans-title>FOCUS. Endocrinology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2713-0177</issn><issn pub-type="epub">2713-0185</issn><publisher><publisher-name>ООО "Издательство "Перо"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.62751/2713-0177-2025-6-3-08</article-id><article-id custom-type="elpub" pub-id-type="custom">endofocus-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>ОБЗОР ЛИТЕРАТУРЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>LITERATURE REVIEW</subject></subj-group></article-categories><title-group><article-title>Проблема гипотиреоза сегодня: актуальные задачи и решения</article-title><trans-title-group xml:lang="en"><trans-title>The problem of hypothyroidism today: Current challenges and solutions</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9007-4123</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бирюкова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Biryukova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бирюкова Елена Валерьевна – д.м.н., профессор эндокринологии </p><p>г. Москва</p></bio><bio xml:lang="en"><p>Elena V. Biryukova – D. Sci (Med.), professor of the Department of endocrinology</p><p>Moscow</p><p> </p><p> </p></bio><email xlink:type="simple">lena@obsudim.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/0000-0001-6388-1544</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Платонова</surname><given-names>Н. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Platonova</surname><given-names>N. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Платонова Надежда Михайловна – д.м.н., заведующая отделом терапевтической эндокринологии </p><p>г. Москва</p></bio><bio xml:lang="en"><p>Nadezhda M. Platonova – D. Sci (Med.), Head of the Department of therapeutic endocrinology </p><p>Moscow</p></bio><email xlink:type="simple">doc-platonova@inbox.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/0000-0003-1548-1487</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шинкин</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Shinkin</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Михаил Викторович Шинкин – научный сотрудник отдела эндокринных и метаболических заболеваний, врач-эндокринолог </p><p>г. Москва</p></bio><bio xml:lang="en"><p>Mikhail V. Shinkin – Researcher at the Department of endocrine and metabolic diseases, endocrinologist</p><p> Moscow</p><p> </p></bio><email xlink:type="simple">m.shinkin@mknc.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Российский университет медицины» Минздрава России</institution></aff><aff xml:lang="en"><institution>Russian University of Medicine</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУ «Национальный медицинский исследовательский центр эндокринологии им. И.И. Дедова» Минздрава России</institution></aff><aff xml:lang="en"><institution>National Medical Research Center for Endocrinology</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ГБУЗ «Московский клинический научный центр им. А.С. Логинова Департамента здравоохранения города Москвы»</institution></aff><aff xml:lang="en"><institution>A.S. Loginov Moscow Clinical Research Center</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>13</day><month>11</month><year>2025</year></pub-date><volume>6</volume><issue>3</issue><fpage>59</fpage><lpage>66</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бирюкова Е.В., Платонова Н.М., Шинкин М.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Бирюкова Е.В., Платонова Н.М., Шинкин М.В.</copyright-holder><copyright-holder xml:lang="en">Biryukova E.V., Platonova N.M., Shinkin M.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://endofocus.elpub.ru/jour/article/view/169">https://endofocus.elpub.ru/jour/article/view/169</self-uri><abstract><p>Гипотиреоз - клинический синдром, формирующийся вследствие снижения функции щитовидной железы, что проявляется уменьшением уровня тиреоидных гормонов в крови. Частота выявления гипотиреоза зависит от пола и возраста пациента. В статье рассматриваются ключевые причины первичного и вторичного гипотиреоза. Основным фактором, вызывающим первичный гипотиреоз, является аутоиммунный тиреоидит, который может возникать как изолированно, так и в сочетании с другими аутоиммунными патологиями. Степень выраженности клинических проявлений зависит от степени дефицита тиреоидных гормонов. Подробно описана симптоматика гипотиреоза, с упором на патологические изменения сердечно-сосудистой системы. Гипотиреоз наиболее часто встречается у пожилых пациентов и людей старческого возраста, характерной особенностью у которых является смазанная клиническая картина заболевания. Отдельное внимание уделено трудностям диагностики гипотиреоза, который иногда маскируется под симптомы других заболеваний. Подтверждение диагноза требует проведения комплекса лабораторных и инструментальных исследований. Лечение гипотиреоза, независимо от его причины, осуществляется с использованием заместительной терапии натрием левотироксина (L-T4). Предложены рекомендации по оптимизации подходов к терапии при тиреоидной недостаточности.</p></abstract><trans-abstract xml:lang="en"><p>Hypothyroidism is a clinical syndrome resulting from decreased thyroid function, manifested by decreased thyroid hormone levels in the blood. The incidence of hypothyroidism varies by gender and age. This article examines the key causes of primary and secondary hypothyroidism. The main factor causing primary hypothyroidism is autoimmune thyroiditis, which can occur in isolation or in combination with other autoimmune pathologies. The severity of clinical manifestations depends on the degree of thyroid hormone deficiency. The symptoms of hypothyroidism are described in detail, with an emphasis on pathological changes in the cardiovascular system. Hypothyroidism is most common in elderly patients and the elderly, who are characterized by a vague clinical picture. Special attention is given to the difficulties of diagnosing hypothyroidism, which sometimes masquerades as symptoms of other diseases. Confirmation of the diagnosis requires a range of laboratory and instrumental studies. Hypothyroidism, regardless of its cause, is treated with sodium levothyroxine (L-T4) replacement therapy. Recommendations for optimizing treatment approaches for thyroid insufficiency are provided.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гипотиреоз</kwd><kwd>тиреоидные гормоны</kwd><kwd>тиреотропный гормон</kwd><kwd>заместительная терапия</kwd><kwd>левотироксин натрия (L-T4)</kwd></kwd-group><kwd-group xml:lang="en"><kwd>hypothyroidism</kwd><kwd>thyroid hormones</kwd><kwd>thyroid-stimulating hormone</kwd><kwd>replacement therapy</kwd><kwd>levothyroxine sodium (L-T4)</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">Taylor PN, Medici MM, Hubalewska-Dydejczyk A, Boelaert K. Hypothyroidism. Lancet. 2024;404(10460):1347–64. doi: 10.1016/S0140-6736(24)01614-3.</mixed-citation><mixed-citation xml:lang="en">Taylor PN, Medici MM, Hubalewska-Dydejczyk A, Boelaert K. Hypothyroidism. 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