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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">rmt</journal-id><journal-title-group><journal-title xml:lang="ru">Общая реаниматология</journal-title><trans-title-group xml:lang="en"><trans-title>General Reanimatology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1813-9779</issn><issn pub-type="epub">2411-7110</issn><publisher><publisher-name>FSBI "SRIGR" RAMS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15360/1813-9779-2023-2-2243</article-id><article-id custom-type="elpub" pub-id-type="custom">rmt-2243</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>КЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL STUDIES</subject></subj-group></article-categories><title-group><article-title>Прогностическое значение цистатина-С как предиктора развития острого повреждения почек при COVID-19</article-title><trans-title-group xml:lang="en"><trans-title>The Predictive Value of Cystatin C for AKI in Patients with COVID-19</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0483-1050</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Магомедалиев</surname><given-names>М. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Magomedaliev</surname><given-names>M. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Магомедалиев Магомедали Омарасхабович - старший ординатор отделения реанимации и интенсивной терапии центра анестезиологии, реанимации и интенсивной терапии 1586 ВКГ Минобороны России; ассистент кафедры хирургических болезней с курсами эндоскопии, анестезиологии и реаниматологии, акушерства и гинекологии ММСИ им. Ф.П. Гааза.</p><p>Подольск, Московская обл.; 123056, Москва, 2-я Брестская ул., д. 5</p></bio><bio xml:lang="en"><p>Magomedali O. Magomedaliev – MD, Senior Doctor, Resuscitation and In-tensive Therapy Unit, Anesthesiology, Resuscitation and Intensive Therapy Center, 1586 Military Clinical Hospital; Assistant of the Dept of Surgical Diseases, Endoscopy, Anesthesiology and Resuscitation, Obstetrics and Gynecology, Haass Moscow Medical and Social Institute.</p><p>Podol’sk; 5 Brestskaya 2nd Str., 123056 Moscow</p></bio><email xlink:type="simple">magomedalim@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/0000-0002-0459-0488</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Корабельников</surname><given-names>Д. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Korabelnikov</surname><given-names>D. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Корабельников Даниил Иванович – кандидат медицинских наук, заведующий кафедрой профилактической медицины, профессор кафедры внутренних болезней, ректор ММСИ им. Ф.П. Гааза; 1586 ВКГ Минобороны России; ученый секретарь ФНКЦ детей и подростков ФМБА России.</p><p>123056, Москва, 2-я Брестская ул., д. 5; Подольск, Московская обл.</p><p>Scopus Author ID: 7801382184</p></bio><bio xml:lang="en"><p>Daniil I. Korabelnikov - M.D., Ph.D., Head of the Dept of Preventive Medicine, Professor of the Dept of Internal Diseases, General practice, Functional Diagnostics and Infectious Diseases, Rector, Haass Moscow Medical and Social Institute; 1586 Military Clinical Hospital.</p><p>Podol’sk; 5 Brestskaya 2nd Str., 123056 Moscow</p><p>Scopus Author ID: 7801382184</p></bio><email xlink:type="simple">dkorabelnikov@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/0000-0002-0427-8099</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хорошилов</surname><given-names>С. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Khoroshilov</surname><given-names>S. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хорошилов Сергей Евгеньевич – доктор медицинских наук, заслуженный врач РФ, заведующий отделением гемодиализа.</p><p>Москва</p></bio><bio xml:lang="en"><p>Sergey E. Khoroshilov - M.D., Ph.D., Honored Doctor of The Russian Federation, Head of the Extracorporeal Dialysis Unit, Burdenko Main Military Clinical Hospital.</p><p>Moscow</p></bio><email xlink:type="simple">intensive@list.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>1586 Военный клинический госпиталь Минобороны России; Московский медико-социальный институт им. Ф.П. Гааза</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Military Clinical Hospital 1586, Ministry of Defense of Russia; Haass Moscow Medical and Social Institute</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>1586 Военный клинический госпиталь Минобороны России; Московский медико-социальный институт им. Ф.П. Гааза; ФНКЦ детей и подростков ФМБА России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Military Clinical Hospital 1586, Ministry of Defense of Russia; Haass Moscow Medical and Social Institute; Federal Scientific and Practical Center for Children and Adolescents of the FMBA of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Главный военный клинический госпиталь им. акад. Н.Н. Бурденко Минобороны России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Burdenko Main Military Clinical Hospital, Moscow, Russian Federation;</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>26</day><month>04</month><year>2023</year></pub-date><volume>19</volume><issue>2</issue><fpage>14</fpage><lpage>22</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Магомедалиев М.О., Корабельников Д.И., Хорошилов С.Е., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Магомедалиев М.О., Корабельников Д.И., Хорошилов С.Е.</copyright-holder><copyright-holder xml:lang="en">Magomedaliev M.O., Korabelnikov D.I., Khoroshilov S.E.</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://www.reanimatology.com/rmt/article/view/2243">https://www.reanimatology.com/rmt/article/view/2243</self-uri><abstract><p>Цель работы — исследовать прогностическое значение концентрации цистатина-С в сыворотке крови и моче для верификации острого повреждения почек (ОПП) у больных с пневмонией тяжелого и крайне тяжелого течения, ассоциированной с COVID-19.</p><sec><title>Материалы и методы</title><p>Материалы и методы. Провели обсервационное проспективное исследование с включением 117 больных с пневмонией тяжелого и крайне тяжелого течения, ассоциированной с COVID-19, находившихся на лечении в отделении реанимации и интенсивной терапии (ОРИТ) многофункционального медицинского центра 1586 Военного клинического госпиталя Минобороны России в 2020-2022 гг. Рутинные лабораторные и инструментальные исследования выполняли, согласно общепринятым протоколам. Концентрации s-CysC и u-CysC определяли иммунотурбидиметрическим методом.</p></sec><sec><title>Результаты</title><p>Результаты. ОПП верифицировали у 17,9% больных, дисфункцию почек без развития ОПП — у 18,3% больных. Концентрации s-CysC и u-CysC в группе больных с развитием в процессе лечения ОПП были статистически значимо больше по сравнению с группой больных без развития ОПП, за исключением дня госпитализации в ОРИТ. Концентрации s-CysC за 1-е сут до развития ОПП Т (-1) и за 2-е сут до развития ОПП Т (-2) являлись независимыми факторами возникновения ОПП при пневмониях тяжелого и крайне тяжелого течения, ассоциированных с COVID-19: ОШ 5,37, χ2 Вальда 5,534 (ДИ: 1,324; 21,788); р=0,019 и ОШ 3,225, χ2 Вальда 4,121 (ДИ: 1,041; 9,989); р=0,042, соответственно. s-CysC Т (-2) служил информативным, а s-CysC Т (-1) — высокоинформативным предиктором развития ОПП при пневмониях тяжелого и крайне тяжелого течения, ассоциированных COVID-19: ROC AUC 0,853 (95% ДИ, 0,74-0,966), р&lt;0,001), с чувствительностью 90%, специфичностью 73%, при пороговом значении 1,67 мг/л и ROC AUC 0,905 (95% ДИ, 0,837-0,973), р&lt;0,001), чувствительностью 90%, специфичностью 73%, при пороговом значении 1,69 мг/л, соответственно. Концентрация s-CysC увеличивалась за 3 дня до развития ОПП, опережая увеличение концентрации SCr. Концентрация u-CysC не являлась предиктором ОПП. С возрастом вероятность нарушения функций почек увеличивалась (р&lt;0,001).</p></sec><sec><title>Заключение</title><p>Заключение. CysC является статистически значимым предиктором развития ОПП: концентрации s-CysC увеличивались за три дня до развития ОПП, опережая увеличение концентрации SCr у больных с пневмониями тяжелого и крайне тяжелого течения, ассоциированными с COVID-19. u-CysC не являлся статистически значимым предиктором развития ОПП, хотя концентрации u-CysC за три, два, один и в день развития ОПП в группе больных с ОПП были статистически значимо выше.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Objective</title><p>Objective. To evaluate a potential of cystatin C blood concentration to predict acute kidney injury (AKI) in patients with severe and extremely severe pneumonia associated with a COVID-19.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. An observational prospective study of 117 patients with severe and extremely severe pneumonia associated with a COVID-19 in an ICU setting was conducted in 2020-2022 (site: multi-functional Medical Center, 1586 Military Clinical Hospital of the Ministry of Defense of Russia, Moscow Region, Russia). Routine laboratory tests and instrumental examinations were performed according to generally accepted protocols. Cystatin C concentrations in blood (s-CysC) and urine (u-CysC) were measured by immunoturbidimetric method.</p></sec><sec><title>Results</title><p>Results. AKI was diagnosed in 21 (17.9%) patients, kidney dysfunction without AKI was found in 22 (18.8%) patients with severe and extremely severe pneumonia associated with COVID-19. s-CysC and u-CysC levels in the group of patients with AKI were statistically significantly higher compared to the levels in the group of patients without AKI. The levels of s-CysC obtained within Day 1 — T (-1), and Day 2 — T (-2) prior to AKI onset turned out to be the independent factors for AKI development in patients with severe and extremely severe pneumonia associated with COVID-19: OR 5.37, Wald chisquare 5.534 (CI: 1.324; 21.788); P=0.019 and OR 3.225, Wald chi-square 4.121 (CI: 1.041; 9.989); P=0.042, respectively. s-CysC T (-2) value is informative, and s- CysC T (-1) is a highly informative predictor of AKI development in severe and extremely severe pneumonia associated with COVID-19: ROC AUC 0.853 (95% CI, 0.74-0.966), P&lt;0.001) with 90% sensitivity and 73% specificity at a cut-off of 1.67 mg/L, and ROC AUC 0.905 (95% CI, 0.837-0.973), P&lt;0.001) with 90% sensitivity and 73% specificity at a cut-off of 1.69 mg/l, respectively. Serum CysC levels started increasing 3 days prior to AKI onset, outpacing the increase of SCr levels. The u-CysC levels were not predictive of AKI development. Impaired renal function probability was increasing with patients' age (P&lt;0.0001).</p></sec><sec><title>Conclusions</title><p>Conclusions. Serum CysC seems to be a statistically significant predictor of AKI. s-CysC levels started increasing 3 days prior to AKI onset, surpassing the increase of SCr levels in patients with severe and extremely severe pneumonia associated with COVID-19. Urine CysC did not achieve statistical significance as a predictor for AKI, although u-CysC concentrations were significantly higher on days 3, 2, 1 prior to AKI onset and on the day of AKI onset in the group of patients with AKI.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>острое повреждение почек</kwd><kwd>ОПП</kwd><kwd>цистатин С</kwd><kwd>s-CysC</kwd><kwd>u-CysC</kwd><kwd>COVID-19</kwd><kwd>пневмония</kwd></kwd-group><kwd-group xml:lang="en"><kwd>acute kidney injury</kwd><kwd>AKI</kwd><kwd>cystatin C</kwd><kwd>s-CysC</kwd><kwd>u-CysC</kwd><kwd>COVID-19</kwd><kwd>pneumonia</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">United Nations. Naming the coronavirus disease (COVID-19) and the virus that causes it [Electronic resource]. 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