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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">evrazkar</journal-id><journal-title-group><journal-title xml:lang="ru">Евразийский Кардиологический Журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Eurasian heart journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2225-1685</issn><issn pub-type="epub">2305-0748</issn><publisher><publisher-name>Евразийская ассоциация кардиологов</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.38109/2225-1685-2022-4-90-97</article-id><article-id custom-type="elpub" pub-id-type="custom">evrazkar-6355</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL PAPERS</subject></subj-group></article-categories><title-group><article-title>Новые возможности электрокардиографии: оценка планарности векторкардиографической петли QRS у больных c инфарктом миокарда</article-title><trans-title-group xml:lang="en"><trans-title>New possibilities of electrocardiography: evaluation of the vectorcardiographic QRS loop planarity in patients with myocardial infarction</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8725-7084</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Блинова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Blinova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Блинова Елена Валентиновна, к.м.н., научный сотрудник лаборатории ЭКГ, институт клинической кардиологии им. А.Л. Мясникова</p><p>SPIN-код: 3306-6128</p><p>ул. 3-я Черепковская, д. 15 а, г. Москва 121552</p></bio><bio xml:lang="en"><p>Elena V. Blinova, Cand. of Sci. (Med.), Research Officer, ECG Laboratory</p><p>SPIN: 3306-6128</p><p>3rd Cherepkovskaya street, 15a, Moscow, 121552</p></bio><email xlink:type="simple">blinova2009.73@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/0000-0002-5543-7184</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сахнова</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Sahnova</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сахнова Тамара Анатольевна, к.м.н., старший научный сотрудник лаборатории ЭКГ, институт клинической кардиологии им. А.Л. Мясникова</p><p>SPIN-код: 4206-2550</p><p>ул. 3-я Черепковская, д. 15 а, г. Москва 121552</p></bio><bio xml:lang="en"><p>Tamara A. Sakhnova, Cand. of Sci. (Med.), Senior Scientist, ECG Laboratory</p><p>SPIN: 4206-2550</p><p>3rd Cherepkovskaya street, 15a, Moscow, 121552</p></bio><email xlink:type="simple">tamara-sahnova@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/0000-0003-3577-712X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Меркулова</surname><given-names>И. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Merkulova</surname><given-names>I. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Меркулова Ирина Николаевна, к.м.н., ведущий научный сотрудник отдела неотложной кардиологии, институт клинической кардиологии им. А.Л. Мясникова</p><p>SPIN-код: 8864-5161</p><p>ул. 3-я Черепковская, д. 15 а, г. Москва 121552</p></bio><bio xml:lang="en"><p>Irina N. Merkulova, Cand. of Sci. (Med.), Senior Research Scientist, Department of Urgent Cardiology</p><p>SPIN-код: 8864-5161</p><p>3rd Cherepkovskaya street, 15a, Moscow, 121552</p></bio><email xlink:type="simple">irina_merkulova@list.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/0000-0001-9505-4404</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Айду</surname><given-names>Э. А.И.</given-names></name><name name-style="western" xml:lang="en"><surname>Aidu</surname><given-names>E. A.-I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Айду Эдуард Альфред-Иоханесович, к.т.н., старший научный сотрудник лаборатории теории передачи информации и управления</p><p>Б. Каретный пер., д. 19, стр. 1, г. Москва 127051</p></bio><bio xml:lang="en"><p>Eduard A.-I. Aidu, Cand. of Sci. (Eng.), Senior Scientist, Laboratory of Information Transmission and Control Theory</p><p>B. Karetny, 19, Moscow, 127051</p></bio><email xlink:type="simple">aidu@iitp.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/0000-0002-6084-1608</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Трунов</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Trunov</surname><given-names>V. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Трунов Владимир Григорьевич, к.т.н., ведущий научный сотрудник лаборатории теории передачи информации и управления</p><p>SPIN-код: 6383-6834</p><p>Б. Каретный пер., д. 19, стр. 1, г. Москва 127051</p></bio><bio xml:lang="en"><p>Vladimir G. Trunov, Cand. of Sci. (Eng.), Senior Research Scientist, Laboratory of Information Transmission and Control Theory</p><p>SPIN: 6383-6834</p><p>B. Karetny, 19, Moscow, 127051</p></bio><email xlink:type="simple">trunov@iitp.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/0000-0003-3248-0224</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шахнович</surname><given-names>Р. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Shahnovich</surname><given-names>R. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шахнович Роман Михайлович, д.м.н., ведущий научный сотрудник отдела неотложной кардиологии, институт клинической кардиологии им. А.Л. Мясникова</p><p>SPIN-код: 9864-1107</p><p>ул. 3-я Черепковская, д. 15 а, г. Москва 121552</p></bio><bio xml:lang="en"><p>Roman M. Shahnovich, Dr. of Sci. (Med.), Senior Research Scientist, Department of Urgent Cardiology</p><p>SPIN: 9864-1107</p><p>3rd Cherepkovskaya street, 15a, Moscow, 121552</p></bio><email xlink:type="simple">shakhnovich@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/0000-0002-5509-6623</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сухинина</surname><given-names>Т. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Sukhinina</surname><given-names>T. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сухинина Татьяна Сергеевна, к.м.н., старший научный сотрудник отдела неотложной кардиологии, институт клинической кардиологии им. А.Л. Мясникова</p><p>SPIN-код: 6629-7608</p><p>ул. 3-я Черепковская, д. 15 а, г. Москва 121552</p></bio><bio xml:lang="en"><p>Tat’yana S. Sukhinina, Cand. of Sci. (Med.), Senior Scientist, Department of Urgent Cardiology</p><p>SPIN: 6629-7608</p><p>3rd Cherepkovskaya street, 15a, Moscow, 121552</p></bio><email xlink:type="simple">sukhinina.t@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/0000-0002-3547-4527</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жукова</surname><given-names>Н. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhukova</surname><given-names>N. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жукова Наталья Семеновна, к.м.н., старший научный сотрудник отдела неотложной кардиологии, институт клинической кардиологии им. А.Л. Мясникова</p><p>SPIN-код: 9033-7228</p><p>ул. 3-я Черепковская, д. 15 а, г. Москва 121552</p></bio><bio xml:lang="en"><p>Natalia S. Zhukova, Cand. of Sci. (Med.), Senior Scientist, Department of Urgent Cardiology</p><p>SPIN: 9033-7228</p><p>3rd Cherepkovskaya street, 15a, Moscow, 121552</p></bio><email xlink:type="simple">cardionat@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/0000-0003-0374-4497</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Барышева</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Barysheva</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Барышева Наталья Александровна, к.м.н., младший научный сотрудник отдела неотложной кардиологии, институт клинической кардиологии им. А.Л. Мясникова</p><p>SPIN-код: 5450-6524</p><p>ул. 3-я Черепковская, д. 15 а, г. Москва 121552</p></bio><bio xml:lang="en"><p>Natalia A. Barysheva, Cand. of Sci. (Med.), Research Assistant, Department of Urgent Cardiology</p><p>SPIN: 5450-6524</p><p>3rd Cherepkovskaya street, 15a, Moscow, 121552</p></bio><email xlink:type="simple">nataly-siu@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/0000-0002-0049-6101</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Староверов</surname><given-names>И. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Staroverov</surname><given-names>I. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Староверов Игорь Иванович, д.м.н., главный научный сотрудник отдела неотложной кардиологии, институт клинической кардиологии им. А.Л. Мясникова</p><p>ул. 3-я Черепковская, д. 15 а, г. Москва 121552</p></bio><bio xml:lang="en"><p>Igor I. Staroverov, Dr. of Sci. (Med.), Chief Researcher, Department of Urgent Cardiology</p><p>3rd Cherepkovskaya street, 15a, Moscow, 121552</p></bio><email xlink:type="simple">i-staroverov@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение Национальный медицинский исследовательский центр кардиологии имени академика Е.И. Чазова Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>E.I. Chazov National Medical Research Center of Cardiology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение науки Институт проблем передачи информации имени А.А. Харкевича Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute for Information Transmission Problems (Kharkevich Institute), Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>21</day><month>12</month><year>2022</year></pub-date><volume>0</volume><issue>4</issue><fpage>90</fpage><lpage>97</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Блинова Е.В., Сахнова Т.А., Меркулова И.Н., Айду Э.А., Трунов В.Г., Шахнович Р.М., Сухинина Т.С., Жукова Н.С., Барышева Н.А., Староверов И.И., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Блинова Е.В., Сахнова Т.А., Меркулова И.Н., Айду Э.А., Трунов В.Г., Шахнович Р.М., Сухинина Т.С., Жукова Н.С., Барышева Н.А., Староверов И.И.</copyright-holder><copyright-holder xml:lang="en">Blinova E.V., Sahnova T.A., Merkulova I.N., Aidu E.A., Trunov V.G., Shahnovich R.M., Sukhinina T.S., Zhukova N.S., Barysheva N.A., Staroverov I.I.</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.heartj.asia/jour/article/view/6355">https://www.heartj.asia/jour/article/view/6355</self-uri><abstract><p>Цель работы – оценить планарность петли QRS и ее связь с систолической дисфункцией левого желудочка у больных в подостром периоде инфаркта миокарда (ИМ).</p><sec><title>Материалы и методы</title><p>Материалы и методы. Были проанализированы ЭКГ 265 больных с диагнозом «острый инфаркт миокарда». Контрольную группу составили 55 здоровых лиц. Индекс планарности рассчитывали, как соотношение площади проекции петли QRS на плоскость (полярного вектора петли QRS) и истинной площади петли QRS в пространстве с использованием синтезированной векторкардиограммы.</p></sec><sec><title>Результаты</title><p>Результаты. У больных ИМ индекс планарности был достоверно меньше, чем у здоровых лиц: 0,87 [0,71; 0,94] и 0,96 [0,93; 0,97], соответственно, p &lt; 0,0001. Были выявлены слабые, но достоверные корреляционные связи индекса планарности с фракцией выброса левого желудочка (ФВ ЛЖ, r = 0,41, р &lt; 0,001) и с числом пораженных сегментов левого желудочка по данным эхокардиографии (r = −0,43, р &lt; 0,001). У больных ИМ индекс планарности был меньше при наличии отека легких в остром периоде ИМ (0,68 [0,54; 0,86]; без отека легких 0,88 [0,76; 0,94], р &lt; 0,001), а также при наличии в анамнезе хронической сердечной недостаточности (0,79 [0,61; 0,88]; без хронической сердечной недостаточности 0,88 [0,75; 0,94], р = 0,007). У больных ИМ как передней, так и нижней локализации индекс планарности был достоверно меньше при ФВ ЛЖ &lt; 50% по сравнению с ФВ ЛЖ ≥ 50%. Индекс планарности был достоверно меньше при ИМ передней локализации по сравнению с ИМ нижней локализации.</p></sec><sec><title>Заключение</title><p>Заключение. У больных в подостром периоде ИМ отмечается уменьшение индекса планарности петли QRS, которое коррелирует с объемом поражения миокарда, снижением ФВ ЛЖ, наличием острой и хронической сердечной недостаточности. Индекс планарности петли QRS достоверно меньше при ИМ передней локализации по сравнению с ИМ нижней локализации.</p></sec></abstract><trans-abstract xml:lang="en"><p>The aim of the work is to evaluate the planarity of the QRS loop and its relationship with systolic dysfunction of the left ventricle in patients in the subacute period of myocardial infarction (MI).</p><sec><title>Materials and methods</title><p>Materials and methods. The ECG of 265 patients with a diagnosis of acute myocardial infarction were analyzed. The control group consisted of 55 healthy individuals. The planarity index was calculated as the ratio of the area of the QRS loop projection onto the plane (the polar vector of the QRS loop) and the true area of the QRS loop in space using a synthesized vectorcardiogram.</p></sec><sec><title>Results</title><p>Results. In patients with MI, the planarity index was significantly lower than in healthy individuals: 0,87 [0,71; 0,94] and 0,96 [0,93; 0,97], respectively, p &lt; 0,0001. Weak but significant correlations between the planarity index and the left ventricular ejection fraction (LVEF, r = 0,41, p &lt; 0,001) and with the number of affected segments of the left ventricle according to echocardiography (r = −0,43, p &lt; 0,001) were found. In patients with MI, the planarity index was lower in the presence of pulmonary edema in the acute period of MI (0,68 [0,54; 0,86]; without pulmonary edema 0,88 [0,76; 0,94], p &lt; 0,001), and in the presence of a history of chronic heart failure (0,79 [0,61; 0,88]; without chronic heart failure 0,88 [0,75; 0,94], p = 0,007). In patients with MI of both anterior and inferior localization, the planarity index was significantly lower with LV EF &lt; 50% compared with LV EF ≥ 50%. The planarity index was significantly lower in anterior MI than in inferior MI. Conclusion. In patients in the subacute period of MI, there is a decrease in the QRS loop planarity index, which correlates with the volume of myocardial damage, a decrease in LV EF, and the presence of acute and chronic heart failure. The QRS loop planarity index was significantly lower in anterior MI than in inferior MI.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>планарность петли QRS</kwd><kwd>инфаркт миокарда</kwd><kwd>синтезированная векторкардиограмма</kwd></kwd-group><kwd-group xml:lang="en"><kwd>QRS loop planarity</kwd><kwd>myocardial infarction</kwd><kwd>synthesized vectorcardiogram</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено в рамках государственного задания ФГБУ «НМИЦК им. акад. Е.И. Чазова» Минздрава России, регистрационный номер 121030900367-2.</funding-statement><funding-statement xml:lang="en">The study was carried out as part of the state assignment of E.I. 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