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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">vestim</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной  академии наук Беларуси. Серия медицинских наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus, Medical series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1814-6023</issn><issn pub-type="epub">2524-2350</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1814-6023-2020-17-4-452-460</article-id><article-id custom-type="elpub" pub-id-type="custom">vestim-714</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>КЛИНИЧЕСКАЯ И ЭКСПЕРИМЕНТАЛЬНАЯ МЕДИЦИНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL AND EXPERIMENTAL MEDICINE</subject></subj-group></article-categories><title-group><article-title>Систолическая дисфункция левого желудочка у пациентов с клинически подозреваемым миокардитом</article-title><trans-title-group xml:lang="en"><trans-title>Systolic left ventricular dysfunction in patients with clinically suspected myocarditis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Митьковская</surname><given-names>Н. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Mitkovskaya</surname><given-names>N. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Митьковская Наталья Павловна – доктор медицинских наук, профессор, директор</p><p>ул. Р. Люксембург, 110В, 220036, г. Минск</p></bio><bio xml:lang="en"><p>Natalya P. Mitkovskaya ‒ D. Sc. (Med.), Professor, Director</p><p>110B, R. Luxemburg Str., 220036</p></bio><email xlink:type="simple">mitkovskaya1@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Балыш</surname><given-names>Е. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Balysh</surname><given-names>E. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Балыш Елена Михайловна ‒ кандидат медицинских наук, доцент</p><p>пр. Дзержинского, 83, 220116, г. Минск</p></bio><bio xml:lang="en"><p>Elena M. Balysh ‒ Ph. D. (Med.), Associate Professor</p><p>83, Dzerzhynski Ave., 220116, Minsk</p></bio><email xlink:type="simple">elenashut@tut.by</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Статкевич</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Statkevich</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Статкевич Татьяна Васильевна ‒ кандидат медицинских наук, доцент</p><p>пр. Дзержинского, 83, 220116, г. Минск</p></bio><bio xml:lang="en"><p>Tatsiana V. Statkevich ‒ Ph. D. (Med.), Associate Professor</p><p>83, Dzerzhynski Ave., 220116, Minsk</p></bio><email xlink:type="simple">forget-me@tut.by</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ладыгина</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Ladygina</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ладыгина Нина Аркадьевна – заведующий отделением</p><p>ул. Лейтенанта Кижеватова, 58, 220024, г. Минск</p></bio><bio xml:lang="en"><p>Nina A. Ladygina ‒ Head of the Department</p><p>58, Lieutenant Kizhevatov Str., 220024, Minsk</p></bio><email xlink:type="simple">solnin29@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Петрова</surname><given-names>Е. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Petrova</surname><given-names>E. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Петрова Екатерина Борисовна ‒ кандидат медицинских наук, доцет</p><p>пр. Дзержинского, 83, 220116, г. Минск</p></bio><bio xml:lang="en"><p>Ekaterina B. Petrova ‒ Ph. D. (Med.), Associate Professor</p><p>83, Dzerzhynski Ave., 220116, Minsk</p></bio><email xlink:type="simple">katrin.sk-81@tut.by</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Конончук</surname><given-names>Н. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Kananchuk</surname><given-names>N. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Конончук Наталья Борисовна ‒ заведующий отделением</p><p>ул. Лейтенанта Кижеватова, 58, 220024, г. Минск</p></bio><bio xml:lang="en"><p>Natallia B. Kananchuk ‒ Head of the Department</p><p>58, Lieutenant Kizhevatov Str., 220024, Minsk</p></bio><email xlink:type="simple">nataly.kon0303@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Керко</surname><given-names>Е. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Kiarko</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Керко Елена Михайловна ‒ заведующий отделением</p><p>ул. Лейтенанта Кижеватова, 58, 220024, г. Минск</p></bio><bio xml:lang="en"><p>Alena M. Kiarko ‒ Head of the Department</p><p>58, Lieutenant Kizhevatov Str., 220024, Minsk</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Республиканский научно-практический центр «Кардиология»</institution></aff><aff xml:lang="en"><institution>Republican Scientific and Practical Centre “Cardiology”</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Белорусский государственный медицинский университет</institution></aff><aff xml:lang="en"><institution>Belarusian State Medical University</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Городская клиническая больница скорой медицинской помощи</institution></aff><aff xml:lang="en"><institution>Minsk City Emergency Hospital</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>05</day><month>12</month><year>2020</year></pub-date><volume>17</volume><issue>4</issue><fpage>452</fpage><lpage>460</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Митьковская Н.П., Балыш Е.М., Статкевич Т.В., Ладыгина Н.А., Петрова Е.Б., Конончук Н.Б., Керко Е.М., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Митьковская Н.П., Балыш Е.М., Статкевич Т.В., Ладыгина Н.А., Петрова Е.Б., Конончук Н.Б., Керко Е.М.</copyright-holder><copyright-holder xml:lang="en">Mitkovskaya N.P., Balysh E.M., Statkevich T.V., Ladygina N.A., Petrova E.B., Kananchuk N.B., Kiarko A.M.</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://vestimed.belnauka.by/jour/article/view/714">https://vestimed.belnauka.by/jour/article/view/714</self-uri><abstract><p>Целью исследования было изучить особенности течения клинически подозреваемого миокардита, осложненного развитием систолической дисфункции левого желудочка (ЛЖ). В исследование были включены 93 пациента с клинически подозреваемым миокардитом. Средний возраст составил 36,63 ± 1,15 года. У 43,01 % обследованных заболевание сопровождалось снижением систолической функции ЛЖ. В группе пациентов с систолической дисфункцией ЛЖ в сравнении с лицами с сохранной фракцией выброса ЛЖ был выявлен значимо более низкий удельный вес мужчин (75 % против 81 % соответственно, χ2 = 9,3, р &lt; 0,01) и более высокий среднегрупповой показатель возраста (40,7 ± 1,87 и 33,6 ± 1,3 года соответственно, р &lt; 0,01). Течение заболевания при развитии систолической дисфункции ЛЖ характеризовалось более частым развитием нарушений ритма (65 % против 43,3 % соответственно, χ2 = 4,3, р &lt; 0,05) и более высоким показателем частоты сердечных сокращений при поступлении (94,5 (75‒100) и 85 (70‒89) ударов в минуту соответственно, р = 0,006). Структурно-функциональное состояние сердца по данным эхокардиографии у пациентов со сниженной фракцией выброса ЛЖ в сравнении с пациентами с отсутствием ее снижения характеризовалось бо́льшими размерами камер сердца, более выраженными нарушениями локальной сократимости миокарда ЛЖ, более частым вовлечением в патологический процесс правого желудочка (56,3 % против 22,2 % соответственно, χ2 = 6,4, р &lt; 0,05). Выявлена взаимосвязь между фракцией выброса левого желудочка и возрастом пациента (r = ‒0,36), частотой сердечных сокращений при поступлении (r = ‒0,32), выраженностью сердечной недостаточности при поступлении, степенью нарушения локальной сократимости ЛЖ, снижением функции правого желудочка (TAPSE, r = 0,58), распространенностью фиброза миокарда по данным кардиоваскулярной магнитнорезонансной томографии (r = ‒0,32).</p></abstract><trans-abstract xml:lang="en"><p>The aim of the study was to investigate the features of clinically suspected myocarditis complicated by the left ventricular systolic dysfunction development. 93 patients with clinically suspected myocarditis were examined. The average age was 36.63 ± 1.15 years. In 43.01 % of patients the disease was accompanied by a decrease in left ventricular systolic function. In the group of patients with left ventricular systolic dysfunction in comparison with those with preserved left ventricular ejection fraction, a significantly lower proportion of men (75 % versus 81 %, respectively, χ2 = 9.3, p &lt; 0,01) and a higher average group age (40.7 ± 1.87 versus 33.6 ± 1.3 years, respectively, p &lt;  0,01) were revealed. The course of the disease in patients with left ventricular systolic dysfunction was characterized by a more frequent development of rhythm disturbances (65 % versus 43.3 %, respectively, χ2  = 4.3, p  &lt; 0,05) and a higher heart rate at admission (94.5 (75‒100) and 85 (70‒89) beats per minute, respectively, p = 0.006). The structural and functional state of the heart according to echocardiography in patients with a reduced left ventricular ejection fraction versus comparison group was characterized by larger heart chambers sizes, more pronounced violations of local left ventricular contractility, more frequent involvement of the right ventricle in the pathological process (56.3  % versus 22.2  %, respectively, χ2   =  6.4, p  &lt; 0,05). The relationships between the left ventricular ejection fraction Весці Нацыянальнай акадэміі навук Беларусі. Серыя медыцынскіх навук. 2020. Т. 17, № 4. C. 452–460 453 and the patient’s age (r = ‒0.36), the value of the heart rate at admission (r = ‒0.32), the severity of heart failure at admission, the degree of impaired local contractility of the left ventricle, the degree of right ventricular function (TAPSE, r  =  0.58), the severity of myocardial fibrosis according to cardiovascular magnetic resonance imaging (r = ‒0.32) were revealed.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>клинически подозреваемый миокардит</kwd><kwd>систолическая дисфункция левого желудочка</kwd><kwd>эхокардиография</kwd><kwd>кардиоваскулярная магнитно-резонансная томография</kwd></kwd-group><kwd-group xml:lang="en"><kwd>clinically suspected myocarditis</kwd><kwd>left ventricular systolic dysfunction</kwd><kwd>echocardiography</kwd><kwd>cardiovascular magnetic resonance imaging</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">Current state of knowledge on aetiology, diagnosis, management, and therapy of myocarditis: a position statement of the European Society of Cardiology Working Group on Myocardial and Pericardial Diseases / A. 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