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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">russjcardiol</journal-id><journal-title-group><journal-title xml:lang="ru">Российский кардиологический журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Journal of Cardiology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1560-4071</issn><issn pub-type="epub">2618-7620</issn><publisher><publisher-name>«SILICEA-POLIGRAF» LLC</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">russjcardiol-2100</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 ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL STUDIES</subject></subj-group></article-categories><title-group><article-title>СИГНАЛ-УСРЕДНЕННАЯ ЭКГ И ВАРИАБЕЛЬНОСТЬ РИТМА СЕРДЦА У БОЛЬНЫХ С ГИПЕРТРОФИЕЙ ЛЕВОГО ЖЕЛУДОЧКА</article-title><trans-title-group xml:lang="en"><trans-title>SIGNAL-AVERAGED ECG AND HEART RATE VARIABILITY IN PATIENTS WITH LEFT VENTRICLE HYPERTROPHY</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>Шугушев</surname><given-names>Х. Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Shugushev</surname><given-names>H. H.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кафедра госпитальной терапии и усовершенствования врачей </p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Василенко</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasilenko</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кафедра госпитальной терапии и усовершенствования врачей </p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Кабардино-Балкарский государственный университет</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2001</year></pub-date><pub-date pub-type="epub"><day>28</day><month>08</month><year>2001</year></pub-date><volume>0</volume><issue>4</issue><fpage>16</fpage><lpage>20</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Шугушев Х.Х., Василенко В.М., 2001</copyright-statement><copyright-year>2001</copyright-year><copyright-holder xml:lang="ru">Шугушев Х.Х., Василенко В.М.</copyright-holder><copyright-holder xml:lang="en">Shugushev H.H., Vasilenko V.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://russjcardiol.elpub.ru/jour/article/view/2100">https://russjcardiol.elpub.ru/jour/article/view/2100</self-uri><abstract><p>Целью исследования явилась изучение показателей сигнал-усредненной ЭКГ и вариабельности ритма сердца у больных с увеличенной массой левого желудочка. Обследовано 105 больных с сердечно-сосудистыми заболеваниями. Масса миокарда левого желудочка определялась методом PENN-convention, СУЭКГ и ВРС - с помощью компьютерного комплекса «Кардиосистема - 3». В соответствии с индексом массы миокарда левого желудочка больные были разделены на группы с нормальной массой левого желудочка, концентрической и эксцентрической гипертрофией. Выявлено, что увеличение массы миокарда ЛЖ сопровождается увеличением QRSf и LAS40, снижением RMS и стандартного отклонения интервала RR. Эти изменения тесно коррелируют с наличием желудочковых аритмий высоких градаций и могут быть использованы в качестве маркеров электрической нестабильности миокарда в данной группе больных.</p></abstract><trans-abstract xml:lang="en"><p>The aim of the study was to study the values of singal-averaged ECG and heart rate variability in patients with increased left ventricle mass. We have studied 105 cardiovascular patients. Left ventricle myocardial mass was measured by the method of PENN-convention, SAECG and HRV – with the help of computer complex “Kardiosistema-3”. Depending on the LV mass index, all patients were divided into groups with normal LV mass, concentric and excentric hypertrophy. We have revealed that increased LV mass is followed by increased QRSf and LAS40, decreased RMS and standard RR deviation. These changes closely correlate with the presence of high grade ventricular arrhythmias and can be used as markers of electrical instability of the myocardium in this group of patients.</p></trans-abstract></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Чубучный В.Н., Жаринов О.И. 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