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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">nefr</journal-id><journal-title-group><journal-title xml:lang="ru">Нефрология</journal-title><trans-title-group xml:lang="en"><trans-title>Nephrology (Saint-Petersburg)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-6274</issn><issn pub-type="epub">2541-9439</issn><publisher><publisher-name>Pavlov First Saint-Petersburg State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.36485/1561-6274-2026-30-1-72-80</article-id><article-id custom-type="edn" pub-id-type="custom">DQMXQA</article-id><article-id custom-type="elpub" pub-id-type="custom">nefr-2524</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. КЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES. CLINICAL INVESTIGATIONS</subject></subj-group></article-categories><title-group><article-title>Прогностическое значение цистатина С при тромбоэмболии легочной артерии</article-title><trans-title-group xml:lang="en"><trans-title>Prognostic value of cystatin С in pulmonary embolism</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6000-4850</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мензоров</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Menzorov</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Проф. Мензоров Максим Витальевич, д-р мед. наук, кафедра терапии и профессиональных болезней</p><p>432017, г. Ульяновск, ул. Л. Толстого, д. 42</p><p>Тел. (951) 0953300</p></bio><bio xml:lang="en"><p>Docent Maksim V. Menzorov MD, PhD, DMedSci, Department of Therapy and Professional Diseases</p><p>432017, Ulyanovsk, L. Tolstoy st., 42</p><p>Phone: (951) 0953300</p></bio><email xlink:type="simple">menzorov.m.v@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/0000-0003-1293-4014</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Матюшина</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Matyushina</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Матюшина Валентина Вячеславовна, кафедра терапии и профессиональных болезней, соискатель</p><p>432017, г. Ульяновск, ул. Л. Толстого, д. 42</p><p>Тел. (8422) 552708</p></bio><bio xml:lang="en"><p>Valentina V. Matyushina, PhD Stud., Department of Therapy and Professional Diseases</p><p>432017, Ulyanovsk, L. Tolstoy st., 42</p><p>Phone: (8422) 552708</p></bio><email xlink:type="simple">kasalinskaa@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1213-8600</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шутов</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Shutov</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Проф. Шутов Александр Михайлович, д-р мед. наук, кафедра терапии и профессиональных болезней, заведующий кафедрой</p><p>432017, г. Ульяновск, ул. Л. Толстого, д. 42</p><p>Тел. (8422) 552708</p></bio><bio xml:lang="en"><p>Professor Alexander M. Shutov MD, PhD, DMedSci, Department of Therapy and Professional Diseases</p><p>432017, Ulyanovsk, L. Tolstoy st., 42</p><p>Phone: (8422) 552708</p></bio><email xlink:type="simple">amshu@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/0009-0009-7194-7350</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горбунов</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gorbunov</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доц. Горбунов Максим Васильевич, канд. мед. наук, кафедра общественного здоровья и здравоохранения</p><p>432017, г. Ульяновск, ул. Л. Толстого, д. 42</p><p>Тел. (8422) 205917</p></bio><bio xml:lang="en"><p>Maksim V. Gorbunov, PhD, Department of Public Health and Healthcare</p><p>432017, Ulyanovsk, L. Tolstoy st., 42</p><p>Phone: (8422) 205917</p></bio><email xlink:type="simple">maksyagor@rambler.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/0009-0007-2981-4699</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мензоров</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Menzorov</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мензоров Виктор Максимович, кафедра пропедевтической терапии с курсом кардиологии, ординатор</p><p>443099, г. Самара, ул. Чапаевская, д. 89</p><p>Тел. (8422) 552708</p></bio><bio xml:lang="en"><p>Viktor M. Menzorov, PhD Stud., Department of Propaedeutic Therapy with a Course of Cardiology</p><p>443099, Samara, Chapaevskaya str., 89</p><p>Phone: (8422) 552708</p></bio><email xlink:type="simple">menzorov73@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Ульяновский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ulyanovsk State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Самарский государственный медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Samara State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>09</day><month>03</month><year>2026</year></pub-date><volume>30</volume><issue>1</issue><fpage>72</fpage><lpage>80</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мензоров М.В., Матюшина В.В., Шутов А.М., Горбунов М.В., Мензоров В.М., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Мензоров М.В., Матюшина В.В., Шутов А.М., Горбунов М.В., Мензоров В.М.</copyright-holder><copyright-holder xml:lang="en">Menzorov M.V., Matyushina V.V., Shutov A.M., Gorbunov M.V., Menzorov V.M.</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.nephrolog.ru/jour/article/view/2524">https://journal.nephrolog.ru/jour/article/view/2524</self-uri><abstract><sec><title>ВВЕДЕНИЕ</title><p>ВВЕДЕНИЕ. Стандартные критерии позволяют диагностировать ОПП в течение часов – суток. Использование биомаркеров – перспективный подход для ранней диагностики и прогнозирования ОПП.</p></sec><sec><title>ЦЕЛЬ</title><p>ЦЕЛЬ. Изучение возможностей цистатина С сыворотки крови (CYS) в ранней диагностике и прогнозировании ОПП и связанной с ним госпитальной летальности, риском 30-дневной смерти при тромбоэмболии легочной артерии (ТЭЛА).</p></sec><sec><title>ПАЦИЕНТЫ И МЕТОДЫ</title><p>ПАЦИЕНТЫ И МЕТОДЫ. Включено 98 пациентов с подозрением на ТЭЛА, при неподтверждении диагноза пациенты исключались. Определяли CYS при поступлении, рассчитывали разницу между определенным CYS и расчётным CYS, соответствующим скорости клубоковой фильтрации (СКФ) 75 мл/мин/1,73 м2 (CYSdiff), и разницу между СКФ по CYS и СКФ по креатинину (рСКФdiff).</p></sec><sec><title>РЕЗУЛЬТАТЫ</title><p>РЕЗУЛЬТАТЫ. ОПП диагностировано у 13 из 63 пациентов с ТЭЛА (мужчин – 36 (57 %), возраст – 67 (12) лет). У 7 (54 %) выявлено ОПП на фоне хронической болезни почек (ХБП), у 6 (46 %) – впервые возникшее ОПП. CYS&gt;2,55 мкг/мл позволял прогнозировать ОПП (чувствительность – 70 %, специфичность – 62 %; AUC=0,70; p=0,01) и ОПП на ХБП (чувствительность – 86 %, специфичность – 62 %; AUC=0,78; p=0,001). CYSdiff&gt;1,62 мкг/мл обеспечивал прогнозирование ОПП (чувствительность – 69 %, специфичность – 68 %; AUC=0,70; p=0,01). В госпитале умерли 5 (9 %) пациентов. Летальность была выше при ОПП (χ2 =5,8; p=0,02). CYS, CYSdiff не прогнозировали госпитальную летальность, при этом CYS&gt;2,17 мкг/мл (чувствительность – 70 %, специфичность – 70 %; AUC=0,76; p=0,0001) и CYSdiff &gt;1,22 мкг/мл (чувствительность – 70 %, специфичность – 70 %; AUC=0,77; p0,05).</p></sec><sec><title>ЗАКЛЮЧЕНИЕ</title><p>ЗАКЛЮЧЕНИЕ. Результаты исследования подтверждают эффективность CYS в ранней диагностике и прогнозировании ОПП, включая случаи на фоне ХБП. Точность прогнозирования может быть улучшена при использовании CYSdiff. CYS не позволяет прогнозировать госпитальную летальность, но связан с высоким риском 30-дневной смерти при ТЭЛА.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>BACKGROUND</title><p>BACKGROUND. Standard criteria allow diagnosing AKI within hours to days. The use of biomarkers is a promising approach for early diagnosis and prognosis of AKI.</p></sec><sec><title>THE AIM</title><p>THE AIM: to study the capabilities of serum cystatin C (CYS) in the early diagnosis and prognosis of AKI and associated hospital mortality, the risk of 30-day death in pulmonary embolism (PE).</p><p>PATIENTS (MATERILS) AND METHODS. 98 patients with suspected PE were included; patients were excluded if the diagnosis was not confirmed. CYS was determined on admission, the difference between the determined CYS and the estimated CYS corresponding to a glomerular filtration rate (GFR) of 75 ml/min/1.73 m2 (CYSdiff) and the difference between the GFR by CYS and the GFR by creatinine (eGFRdiff) were calculated. RESULTS. AKI was diagnosed in 13 of 63 patients with PE (men – 36(57 %), age – 67(12) years). In 7(54 %) cases, AKI was detected against the background of chronic kidney disease (CKD), in 6(46 %) – first-onset AKI. CYS&gt;2.55 μg/ ml predicted AKI (sensitivity – 70 %, specificity – 62 %; AUC=0,70; p=0,01) and AKI in CKD patients (sensitivity – 86 %, specificity – 62 %; AUC=0,78; p=0,001). CYSdiff&gt;1,62 μg/ml predicted AKI (sensitivity – 69 %, specificity – 68 %; AUC=0,70; p=0,01). 5 patients (9 %) died in hospital. Mortality was higher in AKI (χ2 =5.8; p=0,02). CYS, CYSdiff did not predict hospital mortality, while CYS&gt;2,17 μg/ml (sensitivity – 70 %, specificity – 70 %; AUC=0,76; p=0,0001) and CYSdiff&gt;1,22 μg/ml (sensitivity – 70 %, specificity – 70 %; AUC=0.77; p0,05).</p></sec><sec><title>CONCLUSION</title><p>CONCLUSION. The results of the study confirm the effectiveness of CYS in the early diagnosis and prediction of AKI, including cases associated with CKD. The accuracy of prediction can be improved using CYSdiff. CYS does not predict in-hospital mortality but is associated with a high risk of 30-day death in PE.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>тромбоэмболия легочной артерии</kwd><kwd>острое повреждение почек</kwd><kwd>цистатин С</kwd><kwd>госпитальная летальность</kwd><kwd>риск 30-девной смерти</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Pulmonary embolism</kwd><kwd>acute kidney injury</kwd><kwd>cystatin C</kwd><kwd>hospital mortality</kwd><kwd>30-day mortality risk</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">Wendelboe A, Weitz JI. Global Health Burden of Venous Thromboembolism. Arterioscler Thromb Vasc Biol 2024;44(5):1007–1011. doi:10.1161/ATVBAHA.124.320151</mixed-citation><mixed-citation xml:lang="en">Wendelboe A, Weitz JI. Global Health Burden of Venous Thromboembolism. 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