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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">cardiotomsk</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский журнал клинической и экспериментальной медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian Journal of Clinical and Experimental Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2713-2927</issn><issn pub-type="epub">2713-265X</issn><publisher><publisher-name>TSU publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29001/2073-8552-2020-35-4-128-136</article-id><article-id custom-type="elpub" pub-id-type="custom">cardiotomsk-1083</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>ЦИФРОВЫЕ ТЕХНОЛОГИИ ПОДДЕРЖКИ РЕШЕНИЙ В МЕДИЦИНЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>DIGITAL TECHNOLOGIES FOR DECISION SUPPORT IN MEDICINE</subject></subj-group></article-categories><title-group><article-title>Оценка предиктивного потенциала дооперационных факторов риска фибрилляции предсердий у больных ишемической болезнью сердца после коронарного шунтирования</article-title><trans-title-group xml:lang="en"><trans-title>Predictive potential assessment of preoperative risk factors for atrial fibrillation in patients with coronary artery disease after coronary artery bypass grafting</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4539-685X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шахгельдян</surname><given-names>К. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Shakhgeldyan</surname><given-names>K. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шахгельдян Карина Иосифовна, д-р техн. наук, профессор, за- ведующий лабораторией анализа больших данных в биомедицине и здравоохранении</p><p>690920, Владивосток, пос. Аякс 10, корпус 25;690014, Владивосток, ул. Гоголя, 41</p></bio><bio xml:lang="en"><p>Karina I. Shakhgeldyan, Dr. Sci. (Tech.), Professor, Head of the Laboratory of Big Data Analysis in Biomedicine and Health Care</p><p>10, Ajax Bay, build. 25, Vladivostok, 690920;41, Gogol str., Vladivostok, 690014</p></bio><email xlink:type="simple">carinash@vvsu.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/0000-0001-7620-4454</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рублев</surname><given-names>В. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Rublev</surname><given-names>V. Y.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рублев Владислав Юрьевич, врач сердечно-сосудистый хирург, аспирант</p><p>690920, Владивосток, пос. Аякс 10, корпус 25</p></bio><bio xml:lang="en"><p>Vladislav Y. Rublev, Cardiovascular Surgeon, Postgraduate Student</p><p>10, Ajax Bay, build. 25, Vladivostok, 690920</p></bio><email xlink:type="simple">dr.rublev.v@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9250-557X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гельцер</surname><given-names>Б. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Geltser</surname><given-names>B. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гельцер Борис Израйлевич, д-р мед. наук, профессор, чл.-корр. РАН, директор департамента клинической медицины</p><p>690920, Владивосток, пос. Аякс 10, корпус 25</p></bio><bio xml:lang="en"><p>Boris I. Geltser, Dr. Sci (Med.), Professor, Corresponding Member of the Russian Academy of Sciences, Director of the Clinical Medicine Department</p><p>10, Ajax Bay, build. 25, Vladivostok, 690920</p></bio><email xlink:type="simple">boris.geltser@vvsu.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/0000-0002-2262-1831</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Щеглов</surname><given-names>Б. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Shcheglov</surname><given-names>B. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Щеглов Богдан Олегович, лаборант</p><p>690920, Владивосток, пос. Аякс 10, корпус 25</p></bio><bio xml:lang="en"><p>Bogdan O. Shcheglov, Laboratory Assistant</p><p>10, Ajax Bay, build. 25, Vladivostok, 690920</p></bio><email xlink:type="simple">b.schegloff@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5531-9519</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Широбоков</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Shirobokov</surname><given-names>V. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Широбоков Василий Глебович, магистрант</p><p>119049, Москва, Ленинский пр-т, 4</p></bio><bio xml:lang="en"><p>Vasiliy G. Shirobokov, Master’s Student, Institute of Information Business Systems</p><p>4, Leninskiy pr., Moscow, 119049</p></bio><email xlink:type="simple">wpn@inbox.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9332-9435</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Духтаева</surname><given-names>М. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Dukhtaeva</surname><given-names>M. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Духтаева Малика Казбековна, ординатор</p><p>690920, Владивосток, пос. Аякс 10, корпус 25</p></bio><bio xml:lang="en"><p>Malika K. Dukhtaeva, Resident Physician</p><p>10, Ajax Bay, build. 25, Vladivostok, 690920</p></bio><email xlink:type="simple">malikadukhtaeva@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1110-0264</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чернышева</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernysheva</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Чернышева Ксения Вячеславовна, ординатор</p><p>690920, Владивосток, пос. Аякс 10, корпус 25</p></bio><bio xml:lang="en"><p>Ksenia V. Chernysheva, Resident Physician</p><p>10, Ajax Bay, build. 25, Vladivostok, 690920</p></bio><email xlink:type="simple">chernysheva.ksenia96@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Дальневосточный федеральный университет, Школа биомедицины;&#13;
ладивостокский государственный университет экономики и сервиса, Институт информационных технологий</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Far Eastern Federal University, School of Biomedicine;&#13;
Vladivostok State University of Economics and Service, Institute of Information Technologies</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Дальневосточный федеральный университет, Школа биомедицины</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Far Eastern Federal University, School of Biomedicine</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Национальный исследовательский технологический университет «МИСиС», Институт информационных бизнес-систем</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National University of Science and Technology MISiS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>25</day><month>12</month><year>2020</year></pub-date><volume>35</volume><issue>4</issue><fpage>128</fpage><lpage>136</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шахгельдян К.И., Рублев В.Ю., Гельцер Б.И., Щеглов Б.О., Широбоков В.Г., Духтаева М.К., Чернышева К.В., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Шахгельдян К.И., Рублев В.Ю., Гельцер Б.И., Щеглов Б.О., Широбоков В.Г., Духтаева М.К., Чернышева К.В.</copyright-holder><copyright-holder xml:lang="en">Shakhgeldyan K.I., Rublev V.Y., Geltser B.I., Shcheglov B.O., Shirobokov V.G., Dukhtaeva M.K., Chernysheva K.V.</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.sibjcem.ru/jour/article/view/1083">https://www.sibjcem.ru/jour/article/view/1083</self-uri><abstract><p>Послеоперационная фибрилляция предсердий (ПоФП) является одним из наиболее частых осложнений коронарного шунтирования (КШ) и встречается у 25–65% больных.</p><sec><title>Цель исследования</title><p>Цель исследования: оценка предиктивного потенциала дооперационных факторов риска ПоФП у больных ишемической болезнью сердца (ИБС) после КШ на основе методов машинного обучения (МО).</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Проведено наблюдательное ретроспективное исследование по данным 866 электронных историй болезни (ЭИБ) больных ИБС с медианой возраста (Мe) 63 года и 95%-м доверительным интервалом (ДИ) [63; 64], которым выполнялось изолированное КШ в условиях искусственного кровообращения (ИК). Было выделено 2 группы лиц, первую из которых составили 147 (18%) больных с впервые зарегистрированными пароксизмами ФП, вторую – 648 (81,3%) пациентов без нарушения сердечного ритма. Дооперационный клинико-функциональный статус оценивали с помощью 100 факторов. Для обработки и анализа данных использовали методы статистического анализа (тесты хи-квадрат, Фишера, Манна – Уитни, однофакторной логистической регрессии (ЛР)) и МО (многофакторной ЛР и стохастического градиентного бустинга (СГБ)). Точность моделей оценивали по трем метрикам качества: площадь под ROC-кривой (AUC), чувствительность и специфичность. Процедура кросс-валидации выполнялась не менее 1000 раз по случайно выбранным данным.</p></sec><sec><title>Результаты</title><p>Результаты. Обработка и анализ показателей дооперационного статуса больных с помощью методов МО позволили выделить 10 предикторов, линейно и нелинейно связанных с развитием ПоФП. К наиболее значимым из них относились передне-задний размер левого предсердия (ЛП), недостаточность трикуспидального клапана (НТК), фракция выброса (ФВ) &lt;40%, длительность интервала P–R и хроническая сердечная недостаточность (ХСН) III–IV функционального класса (ФК). Точность лучшей прогностической многофакторной модели ЛР составила по AUC 0,61, специфичности – 0,49, чувствительности – 0,72. Значения аналогичных метрик качества лучшей модели на основе СГБ составили 0,64; 0,6 и 0,68 соответственно.</p></sec><sec><title>Заключение</title><p>Заключение. Применение СГБ позволило верифицировать нелинейно связанные предикторы ПоФП. Перспектива дальнейших исследований по данной проблеме связана с использованием современных методов МО, позволяющих учитывать индивидуальные особенности пациентов при разработке прогнозных моделей.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Introduction</title><p>Introduction. Postoperative atrial fibrillation (POAF) is one of the most common complications of coronary artery bypass grafting (CABG) and occurs in 25–65% of patients.</p></sec><sec><title>Aim</title><p>Aim. The study aimed to assess the predictive potential of preoperative risk factors for POAF in patients with coronary artery disease (CAD) after CABG based on machine learning (ML) methods.</p></sec><sec><title>Material and Methods</title><p>Material and Methods. An observational retrospective study was carried out based on data from 866 electronic case histories of CAD patients with a median age of 63 years and a 95% confidence interval [63; 64], who underwent isolated CABG on cardiopulmonary bypass. Patients were assigned to two groups: group 1 comprised 147 (18%) patients with newly registered atrial fibrillation (AF) paroxysms; group 2 included 648 (81.3%) patients without cardiac arrhythmia. The preoperative clinical and functional status was assessed using 100 factors. We used statistical analysis methods (Chi-square, Fisher, Mann – Whitney, and univariate logistic regression (LR) tests) and ML tests (multivariate LR and stochastic gradient boosting (SGB)) for data processing and analysis. The models’ accuracy was assessed by three quality metrics: area under the ROC-curve (AUC), sensitivity, and specificity. The cross-validation procedure was performed at least 1000 times on randomly selected data.</p></sec><sec><title>Results</title><p>Results. The processing and analysis of preoperative patient status indicators using ML methods allowed to identify 10 predictors that were linearly and nonlinearly related to the development of POAF. The most significant predictors were the anteroposterior dimension of the left atrium, tricuspid valve insufficiency, ejection fraction &lt;40%, duration of the P–R interval, and chronic heart failure of functional class III–IV. The accuracy of the best predictive multifactorial model of LR was 0.61 in AUC, 0.49 in specificity, and 0.72 in sensitivity. The values of similar quality metrics for the best model based on SGB were 0.64, 0.6, and 0.68, respectively.</p></sec><sec><title>Conclusion</title><p>Conclusion. The use of SGB made it possible to verify the nonlinearly related predictors of POAF. The prospects for further research on this problem require the use of modern medical care methods that allow taking into account the individual characteristics of patients when developing predictive models.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>методы машинного обучения</kwd><kwd>стохастический градиентный бустинг</kwd><kwd>послеоперационная фибрилляция предсердий</kwd><kwd>коронарное шунтирование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>machine learning methods</kwd><kwd>stochastic gradient boosting</kwd><kwd>postoperative atrial fibrillation</kwd><kwd>coronary artery bypass grafting</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">работа выполнена при поддержке грантов РФФИ в рамках научных проектов No 18-29- 03131 и No 19-29-01077.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">The World Health Organization the top ten causes of death. 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