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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">RUDN Journal of Medicine</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Medicine</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Медицина</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2313-0245</issn><issn publication-format="electronic">2313-0261</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">39713</article-id><article-id pub-id-type="doi">10.22363/2313-0245-2024-28-1-178-191</article-id><article-id pub-id-type="edn">ZWORSY</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CARDIOLOGY</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>КАРДИОЛОГИЯ</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">Respiratory dysfunction prediction in patients after the left ventricle geometric reconstruction</article-title><trans-title-group xml:lang="ru"><trans-title>Прогнозирование респираторной дисфункции у пациентов после геометрической реконструкции левого желудочка</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8003-5523</contrib-id><name-alternatives><name xml:lang="en"><surname>Alshibaya</surname><given-names>Mikhail M.</given-names></name><name xml:lang="ru"><surname>Алшибая</surname><given-names>М. М.</given-names></name></name-alternatives><email>mazatenko@bakulev.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9605-254X</contrib-id><contrib-id contrib-id-type="spin">1857-9594</contrib-id><name-alternatives><name xml:lang="en"><surname>Mamalyga</surname><given-names>Maksim L.</given-names></name><name xml:lang="ru"><surname>Мамалыга</surname><given-names>М. Л.</given-names></name></name-alternatives><email>mazatenko@bakulev.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3767-6293</contrib-id><contrib-id contrib-id-type="spin">9084-0481</contrib-id><name-alternatives><name xml:lang="en"><surname>Zatenko</surname><given-names>Mark A.</given-names></name><name xml:lang="ru"><surname>Затенко</surname><given-names>М. А.</given-names></name></name-alternatives><email>mazatenko@bakulev.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0525-2069</contrib-id><name-alternatives><name xml:lang="en"><surname>Danilov</surname><given-names>Sergey A.</given-names></name><name xml:lang="ru"><surname>Данилов</surname><given-names>С. А.</given-names></name></name-alternatives><email>mazatenko@bakulev.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7935-7093</contrib-id><contrib-id contrib-id-type="spin">6473-7096</contrib-id><name-alternatives><name xml:lang="en"><surname>Slivneva</surname><given-names>Inessa V.</given-names></name><name xml:lang="ru"><surname>Сливнева</surname><given-names>И. В.</given-names></name></name-alternatives><email>mazatenko@bakulev.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">A.N. Bakulev National Medical Research Center for Cardiovascular Surgery</institution></aff><aff><institution xml:lang="ru">Национальный медицинский исследовательский центр сердечно-сосудистой хирургии имени А.Н. Бакулева</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-06-29" publication-format="electronic"><day>29</day><month>06</month><year>2024</year></pub-date><volume>28</volume><issue>2</issue><issue-title xml:lang="en">CARDIOLOGY</issue-title><issue-title xml:lang="ru">КАРДИОЛОГИЯ</issue-title><fpage>178</fpage><lpage>191</lpage><history><date date-type="received" iso-8601-date="2024-06-29"><day>29</day><month>06</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Alshibaya M.M., Mamalyga M.L., Zatenko M.A., Danilov S.A., Slivneva I.V.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Алшибая М.М., Мамалыга М.Л., Затенко М.А., Данилов С.А., Сливнева И.В.</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="en">Alshibaya M.M., Mamalyga M.L., Zatenko M.A., Danilov S.A., Slivneva I.V.</copyright-holder><copyright-holder xml:lang="ru">Алшибая М.М., Мамалыга М.Л., Затенко М.А., Данилов С.А., Сливнева И.В.</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://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/medicine/article/view/39713">https://journals.rudn.ru/medicine/article/view/39713</self-uri><abstract xml:lang="en"><p style="text-align: justify;"><italic>Relevance.</italic> One of the most common complications after cardiac surgery is respiratory dysfunction (RD). The high-risk group includes patients after the left ventricle geometric reconstruction (LVGR) due to the presence of chronic heart failure, as well as the complexity and extent of the surgical intervention. At the moment, in clinical practice there is no uniform approach to predicting RD in patients in this group. <italic>The aim:</italic> to identify predictors of the development of RD in the early postoperative period in patients after LVGR. <italic>Materials and methods.</italic> The study included 54 patients who underwent LVGR surgery. Two groups of patients were identified: group I — patients without respiratory complications in the early postoperative period (n  =  34); group II — patients with RD in the early period (n  =  20). Cardiac function, respiratory system and gas exchange parameters were assessed in the pre- and early postoperative period. <italic>Results and Discussion. </italic>Echocardiography and spirometry indices in the group with RD were reduced before surgery relative to group I (FVC by 10.9 %, p  =  0.009; EDV by 27 %, p  =  0.004). Patients with RD on the first day after surgery were characterized by a pronounced disturbance in gas exchange compared to patients in group I (PaO<sub>2</sub>/FiO<sub>2</sub> decreased by 45.1 %, p  &lt;  0.001; Qs/Qt increased by 71.4 %, p  &lt;  0.001). A multifactorial model was developed, which included three basic predictors of RD development: FVC, FEF<sub>50</sub> and EDV. With a decrease in model indicators by 1 %, the risk of developing RD increased by 33.5 %, 24.8 % and decreased by 6.5 %, respectively. According to ROC-analysis, the most significant indicators were FEV<sub>3</sub> (AUC 0.829 ± 0.079) and EDV (0.838 ± 0.087). To assess the risk of developing RD, a classification tree was constructed. Node 7 is characterized by the highest risk with the following parameters: FVC ≤ 89.5 %, EDV  &gt;  173.2 ml, FEF<sub>50</sub> ≤ 78.9 %. <italic>Conclusion.</italic> Impaired gas exchange on the first day after surgery was detected in all studied patients, however, pronounced RD was observed precisely in patients with the most reduced parameters of the cardiorespiratory system before surgery. The developed model for predicting RD in patients after LVGR makes it possible to assess the risk of respiratory complications at the surgical planning stage and prepare the patient’s cardiorespiratory system for the upcoming surgical intervention.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;"><italic>Актуальность.</italic> Одним из наиболее частых осложнений после кардиохирургических вмешательств является респираторная дисфункция (РД). В группе с высоким риском находятся пациенты после геометрической реконструкции левого желудочка (ГРЛЖ) из-за наличия хронической сердечной недостаточности, а также сложности и объема хирургического вмешательства. На данный момент в клинической практике нет единого подхода к прогнозированию РД у пациентов данной группы.<italic> Цель исследования: </italic>выявить предикторы развития РД в раннем послеоперационном периоде у пациентов после ГРЛЖ. <italic>Материалы и методы. </italic>В исследование включено 54 пациента, перенесших операцию ГРЛЖ. Выделено две группы пациентов: группа I — пациенты без респираторных осложнений в раннем послеоперационном периоде (n  =  34); группа II — пациенты с РД в раннем периоде (n  =  20). Оценивали показатели сердечной функции, дыхательной системы и показатели газообмена в до- и раннем послеоперационном периоде. <italic>Результаты и обсуждение.</italic> Показатели ЭХО-КГ и спирометрии в группе c РД были снижены до операции относительно группы I (FVC на 10,9 %, p =  0,009; КДО на 27 %, p  =  0,004). Пациенты с РД в первые сутки после операции характеризовались выраженным нарушением газообмена относительно пациентов группы I (PaO<sub>2</sub>/FiO<sub>2</sub> снижен на 45,1 %, p &lt; 0,001; Qs/Qt увеличено на 71,4 %, p  &lt; 0,001). Была разработана многофакторная модель, в которую вошли три базовых предиктора развития РД: FVC, FEF<sub>50</sub> и КДО. При снижении показателей модели на 1 % риск развития РД возрастал на 33,5 %, 24,8 % и снижался на 6,5 % соответственно. По данным ROC-анализа, наибольшую значимость имели показатели FEV<sub>3</sub> (AUC 0,829 ± 0,079) и КДО (0,838 ± 0,087). Для оценки риска развития РД было построено дерево классификации. Узел 7 характеризуется самым высоким риском при следующих параметрах: FVC ≤ 89,5 %, КДО  &gt;  173,2 мл, FEF<sub>50</sub> ≤ 78,9 %. <italic>Выводы</italic>. Нарушение газообмена в первые сутки после операции выявлено у всех исследуемых пациентов, однако выраженная РД наблюдалась именно у пациентов с наиболее сниженными параметрами кардиореспираторной системы до операции. Разработанная модель прогнозирования РД у пациентов после ГРЛЖ позволяет оценить риск респираторных осложнений на этапе планирования операции и подготовить кардиореспираторную систему пациента к предстоящему хирургическому вмешательству.</p></trans-abstract><kwd-group xml:lang="en"><kwd>the left ventricle geometric reconstruction</kwd><kwd>respiratory dysfunction</kwd><kwd>prognosis</kwd><kwd>predictors</kwd><kwd>spirometry</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>геометрическая реконструкция левого желудочка</kwd><kwd>респираторная дисфункция</kwd><kwd>прогнозирование</kwd><kwd>предикторы</kwd><kwd>спирометрия</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Liu Y, An Z, Chen J, Liu Y, Tang Y, Han Q, Lu F, Tang H, Xu Z. Risk factors for noninvasive ventilation failure in patients with post-extubation acute respiratory failure after cardiac surgery. 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