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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="review-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Perm Medical Journal</journal-id><journal-title-group><journal-title xml:lang="en">Perm Medical Journal</journal-title><trans-title-group xml:lang="ru"><trans-title>Пермский медицинский журнал (сетевое издание "Perm medical journal")</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0136-1449</issn><issn publication-format="electronic">2687-1408</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">702684</article-id><article-id pub-id-type="doi">10.17816/pmj4335-19</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Literature review</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Обзор литературы</subject></subj-group><subj-group subj-group-type="article-type"><subject>Review Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Sarcopenia in patients with kidney disease: controversial and unresolved issues in diagnosis and treatment</article-title><trans-title-group xml:lang="ru"><trans-title>Саркопения у больных с поражением почек: спорные и нерешенные вопросы диагностики и лечения</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Romanova</surname><given-names>T. N.</given-names></name><name xml:lang="ru"><surname>Романова</surname><given-names>Т. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Nephrologist, Dialysis Department</p></bio><bio xml:lang="ru"><p>врач-нефролог отделения диализа</p></bio><email>romanovat.n.83@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Kazarinov</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Казаринов</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Head, Dialysis Department</p></bio><bio xml:lang="ru"><p>заведующий отделением диализа</p></bio><email>romanovat.n.83@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Karpunina</surname><given-names>N. S.</given-names></name><name xml:lang="ru"><surname>Карпунина</surname><given-names>Н. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>DSc in Medicine, Professor, Department of Hospital Therapy and Cardiology</p></bio><bio xml:lang="ru"><p>доктор медицинских наук, доцент, профессор кафедры госпитальной терапии и кардиологии</p></bio><email>romanovat.n.83@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Perm Regional Clinical Hospital</institution></aff><aff><institution xml:lang="ru">Пермская краевая клиническая больница</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Ye.A. Vagner Perm State Medical University</institution></aff><aff><institution xml:lang="ru">Пермский государственный медицинский университет имени академика Е.А. Вагнера</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2026-07-10" publication-format="electronic"><day>10</day><month>07</month><year>2026</year></pub-date><volume>43</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>5</fpage><lpage>19</lpage><history><date date-type="received" iso-8601-date="2026-02-13"><day>13</day><month>02</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Эко-Вектор</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://eco-vector.com/for_authors.php#07</ali:license_ref></license></permissions><self-uri xlink:href="https://permmedjournal.ru/PMJ/article/view/702684">https://permmedjournal.ru/PMJ/article/view/702684</self-uri><abstract xml:lang="en"><p>Current knowledge on sarcopenia in chronic kidney disease (CKD), with particular focus on unresolved issues in the diagnosis and management of sarcopenia is summarized.</p> <p>An analytical review of recent publications on sarcopenia in CKD was conducted, covering prevalence, pathogenesis, diagnostic approaches, and treatment. The analysis included reviews, meta-analyses, consensus documents, and original studies reflecting current approaches in nephrology and geriatrics, including data on sarcopenia in patients at predialysis stage, on dialysis, and after kidney transplantation.</p> <p> Sarcopenia is reported in 5–62 % of patients with CKD, with the highest prevalence observed in advanced stages and among those receiving renal replacement therapy. Pathogenetic mechanisms include uremic toxicity, chronic inflammation, hormonal imbalance, metabolic acidosis, and malnutrition. Diagnosis remains controversial: although EWGSOP2, AWGS, and FNIH provide stepwise approaches, no universal standard exists, which complicates cross-study comparisons and routine clinical implementation. Bioelectrical impedance analysis is widely used due to its accessibility and reproducibility; however, its accuracy may be compromised in patients with significant fluid imbalance. Therapeutic approaches are heterogeneous. Evidence supports the benefits of nutritional optimization, physical activity, and dietary supplementation. However, the optimal protein intake, the roles of vitamin D and omega-3 fatty acids, and the efficacy of emerging pharmacological therapies (myostatin inhibitors, hormonal agents) remain debated.</p> <p>Sarcopenia in CKD is a major interdisciplinary issue with a strong impact on patient prognosis and quality of life. Early recognition and multimodal management can reduce disability and mortality risks. Nonetheless, further research is required to refine diagnostic criteria, standardize assessment tools, and establish effective preventive and therapeutic protocols.</p></abstract><trans-abstract xml:lang="ru"><p>Обобщены современные представления о саркопении при хронической болезни почек (ХБП) с акцентом на спорные и до конца не решенные вопросы диагностики и лечения. Проведен аналитический обзор публикаций, посвященных саркопении при ХБП: распространенности, патогенезу, подходам к диагностике и лечению. В анализ включались обзоры, метаанализы, консенсусные документы и оригинальные исследования, отражающие современные подходы в нефрологии и гериатрии, включая данные по саркопении у пациентов на додиализной стадии, на диализе и после трансплантации почки.</p> <p>Саркопения регистрируется у 5–62 % пациентов с ХБП, при этом частота существенно возрастает на поздних стадиях заболевания и у лиц, находящихся на заместительной почечной терапии. Ведущими патогенетическими факторами выступают уремическая интоксикация, хроническое воспаление, гормональные дисфункции, метаболический ацидоз и нутритивная недостаточность. Диагностика остается предметом дискуссий: используются критерии EWGSOP2, AWGS и FNIH, однако отсутствует единый стандарт, что осложняет сопоставимость данных исследований и клиническую практику. Наиболее доступным и воспроизводимым методом считается биоимпедансный анализ, однако его точность ограничена при выраженных изменениях водного баланса. Лечение саркопении также не имеет универсального алгоритма: эффективность диетических стратегий, физической активности и нутритивной поддержки подтверждается большинством исследований, но оптимальный объем белка, роль витамина D, омега-3 ПНЖК и фармакотерапии (ингибиторы миостатина, гормональные препараты) остаются предметом обсуждения.</p> <p>Саркопения при ХБП является значимой междисциплинарной проблемой, существенно влияющей на прогноз и качество жизни пациентов. Своевременная диагностика и комплексная терапия позволяют снизить риск инвалидизации и смертности. В то же время сохраняется необходимость в дальнейших исследованиях для уточнения диагностических критериев, стандартизации методов оценки и разработки эффективных схем профилактики и лечения.</p></trans-abstract><kwd-group xml:lang="en"><kwd>sarcopenia</kwd><kwd>chronic kidney disease</kwd><kwd>bioelectrical impedance analysis</kwd><kwd>physical activity</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>саркопения</kwd><kwd>хроническая болезнь почек</kwd><kwd>биоимпедансный анализ</kwd><kwd>физическая активность</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Sato R., Vatic M., Peixoto da Fonseca G.W. Biological basis and treatment of frailty and sarcopenia. Cardiovasc Res. 2024 Jul 31; 120 (9): 982–998. DOI: 10.1093/cvr/cvae073. PMID: 38828887</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Donini L.M., Busetto L., Bischoff S.C. 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