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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">rpcardio</journal-id><journal-title-group><journal-title xml:lang="en">Rational Pharmacotherapy in Cardiology</journal-title><trans-title-group xml:lang="ru"><trans-title>Рациональная Фармакотерапия в Кардиологии</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1819-6446</issn><issn pub-type="epub">2225-3653</issn><publisher><publisher-name>«SILICEA-POLIGRAF» LLC</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20996/1819-6446-2022-06-01</article-id><article-id custom-type="elpub" pub-id-type="custom">rpcardio-2746</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="en"><subject>ORIGINAL STUDIES</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group></article-categories><title-group><article-title>Perspectives on the Use of Transthoracic Echocardiography Results for the Prediction of Ventricular Tachyarrhythmias in Patients with Non-ischemic Cardiomyopathy</article-title><trans-title-group xml:lang="ru"><trans-title>Перспективы использования результатов трансторакальной эхокардиографии для прогнозирования желудочковых тахиаритмий у больных неишемической кардиомиопатией</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1294-9646</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Илов</surname><given-names>Н. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Ilov</surname><given-names>N. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Илов Николай Николаевич - eLibrary SPIN 7426-3796.</p><p>Астрахань</p></bio><bio xml:lang="en"><p>Nikolay N. Ilov - eLibrary SPIN 7426-3796</p><p>Astrakhan</p></bio><email xlink:type="simple">nikolay.ilov@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/0000-0002-2400-8045</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Стомпель</surname><given-names>Д. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Stompel</surname><given-names>D. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Стомпель Динара Рафаиловна - eLibrary SPIN 5451-9926.</p><p>Астрахань</p></bio><bio xml:lang="en"><p>Dinara R. Stompel - eLibrary SPIN 5451-9926</p><p>Astrakhan</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6998-8406</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бойцов</surname><given-names>С. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Boytsov</surname><given-names>S. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бойцов Сергей Анатольевич - eLibrary SPIN 7961-5520.</p><p>Москва</p></bio><bio xml:lang="en"><p>Sergey A. Boytsov - eLibrary SPIN 7961-5520</p><p>Moscow</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4476-5174</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пальникова</surname><given-names>О. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Palnikova</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Пальникова Олеся Викторовна - eLibrary SPIN 3215-7250.</p><p>Астрахань</p></bio><bio xml:lang="en"><p>Olesya V. Palnikova - eLibrary SPIN 3215-7250</p><p>Astrakhan</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5722-9883</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Нечепуренко</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nechepurenko</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Нечепуренко Анатолий Анатольевич - eLibrary SPIN 5582-8428.</p><p>Астрахань</p></bio><bio xml:lang="en"><p>Anatoly A. Nechepurenko - eLibrary SPIN 5582-8428</p><p>Astrakhan</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Астраханский государственный медицинский университет; Федеральный центр сердечно-сосудистой хирургии</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Astrakhan State Medical University; Federal Center for Cardiovascular Surgery</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральный центр сердечно-сосудистой хирургии</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Center for Cardiovascular Surgery</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Национальный медицинский исследовательский центр кардиологии</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Medical Research Center of Cardiology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>06</day><month>07</month><year>2022</year></pub-date><volume>18</volume><issue>3</issue><fpage>251</fpage><lpage>260</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ilov N.N., Stompel D.R., Boytsov S.A., Palnikova O.V., Nechepurenko A.A., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Илов Н.Н., Стомпель Д.Р., Бойцов С.А., Пальникова О.В., Нечепуренко А.А.</copyright-holder><copyright-holder xml:lang="en">Ilov N.N., Stompel D.R., Boytsov S.A., Palnikova O.V., Nechepurenko A.A.</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.rpcardio.online/jour/article/view/2746">https://www.rpcardio.online/jour/article/view/2746</self-uri><abstract><sec><title>Aim</title><p>Aim. To perform a comparative analysis of indicators of transthoracic echocardiography (TE), to establish echocardiographic predictors and their predictive role in the occurrence of stable ventricular tachyarrhythmia (VT) paroxysms in patients with nonischemic chronic heart failure (HF) and cardioverter-defibrillator (ICD) implanted for primary prevention of sudden cardiac death.</p></sec><sec><title>Material and Methods</title><p>Material and Methods. A prospective study was carried out, which included 166 patients with nonischemic HF at the age of 54 (49; 59) years with the left ventricle ejection fraction (LV EF) ≤35% and an ICD implanted. The observation time was 24 months. The primary endpoint was the first-ever stable paroxysm of VT (lasting for ≥30 seconds), detected in the «monitor» zone of VT, or paroxysm of VT, which required ICD therapy.  A total of 34 TE indicators were evaluated. Chi-square, Fischer, Manna-Whitney, single-factor logistic regression (LR), and multi-factor LR were used for data processing and analysis and for predictive modelling. Model accuracy was estimated using 4 metrics: ROC curve area (AUC), sensitivity, specificity and diagnostic efficiency.</p></sec><sec><title>Results</title><p>Results. During the two-year observation, 32 patients (19.3%) had a primary endpoint. The average time of occurrence of a stable VT episode was 21.6±0.6 months (95% confidence interval [CI] 20.5-22.8 months). The value of LV end-systolic dimension was the only parameter independently associated with VT (odds ratio 2.8 per unit increase, 95% CI 1.04-7.5; p=0.042). The complex analysis of echocardiographic indicators made it possible to identify 5 factors with the greatest predictive potential, which are linearly and nonlinearly related to occurrence of VT. These included the LV end-diastolic and end-systolic volumes, LV mass, index of relative LV wall thickness, upper-lower size of the right atrium. The metrics of the best predictive model were: AUC – 0.71 0.069 with 95% CI 0.574-0.843; specificity 50%, sensitivity 90.9%; diagnostic efficiency 57.1%.</p></sec><sec><title>Conclusion</title><p>Conclusion. The study made it possible to evaluate the possibilities of the results of TE in predicting the probability of VT occurrence in patients with nonischemic HF and reduced LV EF. Predictive indicators have been identified that can be used to stratify the arrhythmic risk in the exposed cohort of patients.</p></sec></abstract><trans-abstract xml:lang="ru"><sec><title>Цель</title><p>Цель. Провести сравнительный анализ показателей трансторакальной эхокардиографии (ЭхоКГ), установить эхокардиографические предикторы и их прогностическую роль в возникновении устойчивых пароксизмов желудочковых тахиаритмий (ЖТ) у больных хронической сердечной недостаточностью (ХСН) неишемического генеза, которым с целью первичной профилактики внезапной сердечной смерти был имплантирован кардиовертер-дефибриллятор (ИКД).</p></sec><sec><title>Материал и методы</title><p>Материал и методы. Проведено проспективное исследование, в которое было включено 166 больных ХСН неишемического генеза в возрасте 54 (49; 59) лет с фракцией выброса левого желудочка (ФВ ЛЖ) ≤35% с имплантированным ИКД. Время наблюдения составило 24 мес. В качестве первичной конечной точки выступал впервые возникший устойчивый пароксизм ЖТ (продолжительностью ≥30 сек), детектированный в «мониторной» зоне ЖТ, либо пароксизм ЖТ, потребовавший электротерапии. Эхокардиографическую картину оценивали с помощью 34 показателей. Точность моделей оценивали по 4 метрикам: площадь под ROC-кривой (AUC), чувствительность, специфичность и диагностическая эффективность.</p></sec><sec><title>Результаты</title><p>Результаты. В ходе двухлетнего наблюдения первичная конечная точка была зарегистрирована у 32 больных (19,3%). Среднее время возникновения устойчивого эпизода ЖТ составило 21,6±0,6 мес (95% доверительный интервал [ДИ] 20,5-22,8 мес). единственным параметром, выступающим в качестве независимого предиктора ЖТ, оказалась величина индексированного конечно-систолического размера ЛЖ, увеличение которой на каждую единицу повышало шансы возникновения ЖТ почти в 3 раза (ОШ=2,8; 95% ДИ 1,04-7,5; р=0,042). Комплексный анализ эхокардиографических показателей позволил выделить 5 факторов с наибольшим прогностическим потенциалом, линейно и нелинейно связанных с возникновением ЖТ. К ним относились конечно-диастолический и конечно-систолический объем ЛЖ, масса миокарда ЛЖ, индекс относительной толщины стенок ЛЖ, верхне-нижний размер правого предсердия. Метрики лучшей прогностической модели составили: AUC – 0,710±0,069 с 95% ДИ 0,574-0,843; специфичность 50%, чувствительность 90,9%; диагностическая эффективность 57,1%.</p></sec><sec><title>Заключение</title><p>Заключение. Проведенное исследование позволило оценить возможности результатов трансторакальной ЭхоКГ в прогнозировании вероятности возникновения ЖТ у больных ХСН со сниженной ФВ ЛЖ неишемического генеза. Были выявлены прогностически значимые показатели, которые можно использовать для проведения стратификации аритмического риска у исследуемой когорты больных.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>хроническая сердечная недостаточность</kwd><kwd>желудочковые тахиаритмии</kwd><kwd>прогностические модели</kwd><kwd>трансторакальная эхокардиография</kwd></kwd-group><kwd-group xml:lang="en"><kwd>chronic heart failure</kwd><kwd>ventricular tachyarrhythmia</kwd><kwd>prognostic models</kwd><kwd>transthoracic echocardiography</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование проведено при поддержке Астраханского государственного медицинского университета, Федерального центра сердечнососудистой хирургии, Национального медицинского исследовательского центра кардиологии</funding-statement><funding-statement xml:lang="en">The study was performed with the support of the Astrakhan State Medical University, Federal Center for Cardiovascular Surgery, National Medical Research Center of Cardiology</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">Шляхто Е.В., Арутюнов Г.П., Беленков Ю.Н., и др. 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