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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">usfd</journal-id><journal-title-group><journal-title xml:lang="ru">Ультразвуковая и функциональная диагностика</journal-title><trans-title-group xml:lang="en"><trans-title>Ultrasound &amp; Functional Diagnostics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1607-0771</issn><issn pub-type="epub">2408-9494</issn><publisher><publisher-name>Vidar Ltd.</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24835/1607-0771-295</article-id><article-id custom-type="elpub" pub-id-type="custom">usfd-295</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>Ультразвуковая диагностика заболеваний сердца и сосудов</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Cardiovascular Ultrasound</subject></subj-group></article-categories><title-group><article-title>Взаимосвязь механической дисперсии и желудочковой аритмии у пациентов с ишемической болезнью сердца, перенесших инфаркт миокарда левого желудочка с зубцом Q по данным спекл-трекинг-эхокардиографии</article-title><trans-title-group xml:lang="en"><trans-title>Association between mechanical dispersion and ventricular arrhythmias in patients with coronary artery disease after Q-Wave left ventricular myocardial infarction assessed by Two-Dimensional Speckle-Tracking Echocardiography</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-3346-1177</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Илхомова</surname><given-names>Л. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Ilkhomova</surname><given-names>L. T.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Илхомова Лайло Тохировна – базовый докторант 3-го курса Республиканского специализированного научно-практического медицинского центра кардиологии, Ташкентhttps://orcid.org/0009-0004-3346-1177 </p></bio><bio xml:lang="en"><p>Laylo T. Ilkhomova – MD, PhD student, Republican Specialized Scientific-Practical Medical Center of Cardiology, Tashkenthttps://orcid.org/0009-0004-3346-1177</p></bio><email xlink:type="simple">laylo0701177@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/0000-0002-0619-4729</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бекметова</surname><given-names>Ф. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Bekmetova</surname><given-names>F. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Бекметова Феруза Матсапаевна – доктор мед. наук, руководитель лаборатории неинвазивных методов диагностики сердечно-сосудистых заболеваний  Республиканского специализированного научно-практического медицинского центра кардиологии, Ташкентhttps://orcid.org/0000-0002-0619-4729</p></bio><bio xml:lang="en"><p>Feruza M. Bekmetova – MD, Doct. of Sci. (Med.), Head of the Laboratory of Radiation Diagnostics, Republican Specialized Scientific-Practical Medical Center of Cardiology, Tashkenthttps://orcid.org/0000-0002-0619-4729</p></bio><email xlink:type="simple">feruza@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/0000-0001-7935-3797</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дониёров</surname><given-names>Ш. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Doniyorov</surname><given-names>Sh. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дониёров Шухрат Ниматуллаевич – канд. мед. наук, врач-кардиолог Республиканского специализированного научно-практического медицинского центра кардиологии, Ташкентhttps://orcid.org/0000-0001-7935-3797</p></bio><bio xml:lang="en"><p>Shukhrat N. Doniyorov – MD, PhD (Med.), cardiologist, Republican Specialized Scientific-Practical Medical Center of Cardiology, Tashkenthttps://orcid.org/0000-0001-7935-3797</p></bio><email xlink:type="simple">doctor.doniyorovsh.90@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/0000-0002-5202-929X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Каримов</surname><given-names>Б. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Karimov</surname><given-names>B. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Каримов Бахтиер Собирович – врач-кардиолог Республиканского специализированного научно-практического медицинского центра кардиологии, Ташкентhttps://orcid.org/0000-0002-5202-929Х </p></bio><bio xml:lang="en"><p>Bakhtiyor S. Karimov – MD, cardiologist, Republican Specialized Scientific-Practical Medical Center of Cardiology, Tashkenthttps://orcid.org/0000-0002-5202-929Х</p></bio><email xlink:type="simple">laylo0701177@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Республиканский специализированный научно-практический медицинский центр кардиологии<country>Узбекистан</country></aff><aff xml:lang="en">Republican Specialized Scientific-Practical Medical Center of Cardiology<country>Uzbekistan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>18</day><month>01</month><year>2022</year></pub-date><volume>0</volume><issue>0</issue><issue-title>Принято в печать</issue-title><elocation-id>295</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Илхомова Л.Т., Бекметова Ф.М., Дониёров Ш.Н., Каримов Б.С., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Илхомова Л.Т., Бекметова Ф.М., Дониёров Ш.Н., Каримов Б.С.</copyright-holder><copyright-holder xml:lang="en">Ilkhomova L.T., Bekmetova F.M., Doniyorov S.N., Karimov B.S.</copyright-holder><license 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://usfd.vidar.ru/jour/article/view/295">https://usfd.vidar.ru/jour/article/view/295</self-uri><abstract><sec><title>Цель исследования</title><p>Цель исследования: определение взаимосвязи между значениями механической дисперсии (МД) и развитием желудочковых аритмий (ЖА) у пациентов с ишемической болезнью сердца (ИБС), перенесших инфаркт миокарда (ИМ), с использованием двухмерной спекл-трекинг-эхокардиографии.</p></sec><sec><title>Материал и методы</title><p>Материал и методы. В исследование было включено 80 пациентов с ИБС и постинфарктным кардиосклерозом (перенесших ИМ левого желудочка (ЛЖ) с зубцом Q на ЭКГ). Пациенты были разделены на 2 группы: с наличием ЖА – 58 пациентов и без ЖА – 22 пациента. Средний возраст пациентов составил 61,6 ± 9,7 года. Первая группа, в свою очередь, была разделена на 3 подгруппы в соответствии с классификацией степени тяжести ЖА B. Lown и M. Wolf: 1-я подгруппа — пациенты с ЖА I–II класса (n = 20), 2-я — с ЖА III класса (n = 16), 3-я — с ЖА IV–V класса (n = 22).</p></sec><sec><title>Результаты</title><p>Результаты. При анализе показателей стандартной эхокардиографии у больных ИБС, перенесших ИМ, статистически достоверных различий между группами пациентов с и без ЖА не было выявлено. При проведении многофакторного дисперсионного анализа не было выявлено статистически значимых различий по показателю глобальной продольной деформации ЛЖ (GLS) (F = 1,234; p = 0,334). Однако пациенты с ЖА IV и V классов продемонстрировали статистически значимые более высокие значения МД (F = 96,149; p &lt; 0,001). Между значениями МД и количеством желудочковых экстрасистол была установлена статистически значимая прямая корреляционная связь умеренной тесноты по шкале Чеддока (rxy = 0,46; p &lt; 0,001). Увеличение количества желудочковых экстрасистол на 1 приводит к увеличению МД на 0,002 мс. При построении прогностической модели были получены следующие результаты: площадь под ROC-кривой, соответствующей взаимосвязи прогноза ЖА и МД, составила 0,905 ± 0,033 с 95% ДИ 0,841–0,969. Полученная модель была статистически значимой (p &lt; 0,001). Пороговое значение МД в точке отсечения равно 14,95 мс. При МД, равной или превышающей данное значение, прогнозировался высокий риск ЖА. Чувствительность и специфичность метода составили 84,5 и 81,8% соответственно.</p></sec><sec><title>Заключение</title><p>Заключение. Анализ показателя МД в исследуемых группах продемонстрировал более высокие значения в группе с ЖА в сравнении с группой без ЖА. При этом GLS у пациентов с ЖА не отличался по сравнению с группой без ЖА. Значения МД у пациентов с ИМ 14,95 мс и более ассоциировались с высоким риском развития ЖА. Результаты нашего исследования подчеркивают важную роль использования технологии спекл-трекинг-эхокардиографии с определением МД в прогнозировании ЖА у больных ИБС. </p></sec><sec><title> </title><p> </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Objective</title><p>Objective: to determine the association between mechanical dispersion (MD) and the development of ventricular arrhythmias (VA) in patients with coronary artery disease (CAD) after myocardial infarction (MI) using two-dimensional speckle-tracking echocardiography (2D-STE).</p></sec><sec><title>Materials and Methods</title><p>Materials and Methods. The study included 80 patients with CAD and post-infarction cardiosclerosis (history of Q-wave left ventricular MI on ECG). Patients were divided into two groups: with ventricular arrhythmias (VA) (n = 58) and without VA (n = 22). The mean age was 61.6 ± 9.7 years. The VA group was further subdivided according to the B. Lown and M. Wolf classification: Class I–II of VA (n = 20) Class III (n = 16) Class IV–V (n = 22).</p></sec><sec><title>Results</title><p>Results. Standard echocardiographic parameters did not differ significantly between patients with and without VA. Multivariate analysis of variance demonstrated no statistically significant differences in left ventricular global longitudinal strain (GLS) (F = 1.234; p = 0.334). However, patients with class IV–V of VA showed significantly higher MD values (F = 96.149; p &lt; 0.001).A statistically significant moderate positive correlation (Chaddock scale) was found between MD and the number of premature ventricular contractions (PVCs) (r = 0.46; p &lt; 0.001). Each additional PVC was associated with an increase in MD by 0.002 ms. ROC curve analysis for the prediction of VAs by MD demonstrated an area under the curve (AUC) of 0.905 ± 0.033 (95% CI: 0.841–0.969; p &lt; 0.001). The optimal MD cutoff value was 14.95 ms. MD ≥14.95 ms predicted a high risk of ventricular arrhythmias with a sensitivity of 84.5% and specificity of 81.8%.</p></sec><sec><title>Conclusions</title><p>Conclusions. Mechanical dispersion was significantly higher in patients with ventricular arrhythmias, whereas GLS did not differ between groups. MD ≥14.95 ms was associated with an increased risk of ventricular arrhythmias in patients after MI. These findings highlight the clinical value of 2D speckle-tracking echocardiography with MD assessment for risk stratification of ventricular arrhythmias in CAD patients. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>механическая дисперсия</kwd><kwd>желудочковая аритмия</kwd><kwd>инфаркт миокарда</kwd><kwd>двухмерная спекл-трекинг-эхокардиография</kwd><kwd>внезапная сердечная смерть</kwd><kwd>глобальная продольная деформация</kwd><kwd>левый желудочек</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mechanical dispersion</kwd><kwd>ventricular arrhythmia</kwd><kwd>myocardial infarction</kwd><kwd>two-dimensional speckle-tracking echocardiography</kwd><kwd>sudden cardiac death</kwd><kwd>global longitudinal strain</kwd><kwd>left ventricle</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">Tse G. Mechanisms of cardiac arrhythmias. J. 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