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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">The Clinician</journal-id><journal-title-group><journal-title xml:lang="en">The Clinician</journal-title><trans-title-group xml:lang="ru"><trans-title>Клиницист</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1818-8338</issn><issn publication-format="electronic">2412-8775</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">691</article-id><article-id pub-id-type="doi">10.17650/1818-8338-2025-19-4-K758</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CASE REPORT</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОПИСАНИЕ СЛУЧАЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Clinical case of a young patient with generalized sarcoidosis and heart disease</article-title><trans-title-group xml:lang="ru"><trans-title>Клиническое наблюдение пациента молодого возраста с генерализованным саркоидозом и поражением сердца</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5713-2253</contrib-id><name-alternatives><name xml:lang="en"><surname>Muradyants</surname><given-names>Anaida A.</given-names></name><name xml:lang="ru"><surname>Мурадянц</surname><given-names>Анаида Арсентьевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>elitarsoft@list.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4259-3807</contrib-id><name-alternatives><name xml:lang="en"><surname>Aksenova</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Аксенова</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>elitarsoft@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9710-699X</contrib-id><name-alternatives><name xml:lang="en"><surname>Pravdyuk</surname><given-names>N. G.</given-names></name><name xml:lang="ru"><surname>Правдюк</surname><given-names>Н. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>elitarsoft@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7410-9784</contrib-id><name-alternatives><name xml:lang="en"><surname>Klimenko</surname><given-names>Alesya A.</given-names></name><name xml:lang="ru"><surname>Клименко</surname><given-names>Алеся Александровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Associate Professor, Head of the Department of Acad. A.I. Nesterov of Faculty Therapy</p></bio><bio xml:lang="ru"><p>д.м.н., доцент, заведующая кафедрой факультетской терапии им. акад. А.И. Нестерова Института клинической медицины</p></bio><email>elitarsoft@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7142-2484</contrib-id><name-alternatives><name xml:lang="en"><surname>Chernyaeva</surname><given-names>A. Yu.</given-names></name><name xml:lang="ru"><surname>Черняева</surname><given-names>А. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>elitarsoft@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-1271-5551</contrib-id><name-alternatives><name xml:lang="en"><surname>Akhadova</surname><given-names>A. Sh.</given-names></name><name xml:lang="ru"><surname>Ахадова</surname><given-names>А. Ш.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>elitarsoft@list.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-8460-4966</contrib-id><name-alternatives><name xml:lang="en"><surname>Zargaryan-Smurova</surname><given-names>V. A.</given-names></name><name xml:lang="ru"><surname>Заргарян-Смурова</surname><given-names>В. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>elitarsoft@list.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.I. Pirogov Russian National Research Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО «Российский национальный исследовательский медицинский университет им. Н. И. Пирогова» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Federal Center of Brain Research and Neurotechnologies, Federal Medical and Biological Agency</institution></aff><aff><institution xml:lang="ru">ФГБУ «Федеральный центр мозга и нейротехнологий ФМБА России»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2026-03-17" publication-format="electronic"><day>17</day><month>03</month><year>2026</year></pub-date><volume>19</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>75</fpage><lpage>86</lpage><history><date date-type="received" iso-8601-date="2026-03-16"><day>16</day><month>03</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-03-16"><day>16</day><month>03</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Muradyants A.A., Aksenova A.V., Pravdyuk N.G., Klimenko A.A., Chernyaeva A.Y., Akhadova A.S., Zargaryan-Smurova V.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Мурадянц А.А., Аксенова А.В., Правдюк Н.Г., Клименко А.А., Черняева А.Ю., Ахадова А.Ш., Заргарян-Смурова В.А.</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">Muradyants A.A., Aksenova A.V., Pravdyuk N.G., Klimenko A.A., Chernyaeva A.Y., Akhadova A.S., Zargaryan-Smurova V.A.</copyright-holder><copyright-holder xml:lang="ru">Мурадянц А.А., Аксенова А.В., Правдюк Н.Г., Клименко А.А., Черняева А.Ю., Ахадова А.Ш., Заргарян-Смурова В.А.</copyright-holder><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://klinitsist.abvpress.ru/Klin/article/view/691">https://klinitsist.abvpress.ru/Klin/article/view/691</self-uri><abstract xml:lang="en"><p><bold>Aim.</bold> To demonstrate a multidisciplinary approach in management of a patient with generalized sarcoidosis, heart disease and a life-threatening complication in the form of cerebral infarction which required selection of treatment tactics.</p> <p><bold>Material and methods.</bold> Patient A., 41, presented with sarcoidosis and Löfgren’s syndrome onset at the age of 23 and developed clinically manifested cardiac disease over the next three years. Cardiac sarcoidosis was characterized by complex life-threatening arrhythmias, progression of chronic heart failure, and infarction-like changes in electrocardiograms and echocardiograms necessitating differential diagnosis.</p> <p><bold>Results.</bold> Uncontrolled intermittent use of prednisolone, lack of regular standard therapy for sarcoidosis, and lack of antiarrhythmic therapy largely predetermined the unfavorable course of events, including development of an ischemic stroke at a young age. The development of the cerebral infarction was due to a combination of factors: arrhythmia, newly diagnosed congenital heart defect (patent foramen ovale), hyperhomocysteinemia, and the presence of polymorphisms in the folate cycle genes (<italic>MTHFR</italic>, <italic>MTR</italic>).</p> <p><bold>Conclusion.</bold> The diversity of clinical manifestations often leads to diagnostic difficulties and errors. In the absence of adequate therapy, the disease progresses and has an unfavorable prognosis. This article presents a clinical observation of a young patient with generalized sarcoidosis with progressive heart disease, hereditary thrombophilia, patent foramen ovale complicated by the development of a stroke.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Цель работы</bold> – продемонстрировать междисциплинарный подход в ведении пациента с генерализованным саркоидозом, поражением сердца и развитием жизнеугрожающего осложнения – инфаркта мозга, что потребовало выбора активной лечебной тактики.</p> <p><bold>Материал и методы.</bold> Пациент А., 41 года, с дебютом саркоидоза с синдрома Лефгрена в возрасте 23 лет и развитием в течение последующих 3 лет клинически манифестного поражения сердца. Кардиосаркоидоз характеризовался сложными жизнеугрожающими нарушениями ритма, прогрессированием хронической сердечной недостаточности, инфарктоподобными изменениями на электрокардиограмме и при эхокардиографии, что потребовало проведения дифференциальной диагностики.</p> <p><bold>Результаты.</bold> Бесконтрольный прерывистый прием преднизолона, отсутствие регулярной базисной терапии саркоидоза, антиаритмической терапии во многом предопределили неблагоприятный ход событий, включая развитие ишемического инсульта в молодом возрасте. Развитие инфаркта мозга было обусловлено сочетанием нескольких причин – аритмией, впервые выявленным врожденным пороком сердца в виде открытого овального окна, гипергомоцистеинемией и носительством полиморфизма генов фолатного цикла (<italic>MTHFR</italic>, <italic>MTR</italic>).</p> <p><bold>Заключение.</bold> Многообразие клинических проявлений саркоидоза часто приводит к диагностическим затруднениям и ошибкам. Своевременная диагностика имеет решающее значение для начала терапии и улучшения прогноза. При отсутствии адекватной терапии заболевание прогрессирует и имеет неблагоприятный прогноз.</p></trans-abstract><kwd-group xml:lang="en"><kwd>generalized sarcoidosis</kwd><kwd>Löfgren’s syndrome</kwd><kwd>cardiac sarcoidosis</kwd><kwd>cardiac arrhythmias</kwd><kwd>chronic heart failure</kwd><kwd>ischemic stroke in young people</kwd><kwd>hereditary thrombophilia</kwd><kwd>hyperhomocysteinemia</kwd><kwd>patent foramen ovale</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>генерализованный саркоидоз</kwd><kwd>синдром Лефгрена</kwd><kwd>кардиосаркоидоз</kwd><kwd>нарушение ритма сердца</kwd><kwd>хроническая сердечная недостаточность</kwd><kwd>ишемический инсульт у молодых</kwd><kwd>наследственная тромбофилия</kwd><kwd>гипергомоцистеинемия</kwd><kwd>открытое овальное окно</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Cheng R.K., Kittleson M.M., Beavers C.J. et al. 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