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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">cardiotomsk</journal-id><journal-title-group><journal-title xml:lang="ru">Сибирский журнал клинической и экспериментальной медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Siberian Journal of Clinical and Experimental Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2713-2927</issn><issn pub-type="epub">2713-265X</issn><publisher><publisher-name>TSU publishing</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29001/2073-8552-2024-39-3-72-79</article-id><article-id custom-type="elpub" pub-id-type="custom">cardiotomsk-2428</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>КЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL STUDIES</subject></subj-group></article-categories><title-group><article-title>Механическая диссинхрония у пациентов с хронической сердечной недостаточностью при блокаде левой ножки пучка Гиса</article-title><trans-title-group xml:lang="en"><trans-title>Mechanical dyssynchrony in patients with chronic heart failure and left bundle branch block</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2852-0684</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мамедова</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Mamedova</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мамедова Арзу Исрафил кызы, аспирант, кафедра сердечно-сосудистой хирургии, направление «интервенционная аритмология», ФГБУ «НМИЦ им. В.А. Алмазова» Минздрава России; врач функциональной диагностики, СПБГБУЗ «ГМПБ № 2»</p><p>197341, Санкт-Петербург, ул. Аккуратова, 2,</p><p>194354, Санкт-Петербург, Учебный переулок, 5</p><p> </p></bio><bio xml:lang="en"><p>Arzu I. Mamedova, Graduate Student, Department of Cardiovascular Surgery (Interventional Arrhythmology), Almazov National Medical Research Centre; Functional Diagnostics Doctor, Saint-Patersburg City Multiservice Hospital No. 2</p><p>2, Akkuratova str., Saint Petersburg, 197341, </p><p>5, Uchebny lane, Saint Petersburg, 194354</p></bio><email xlink:type="simple">arzu.mamedovaphd@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/0000-0002-5304-8003</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Приходько</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Prihod’ko</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Приходько Никита Андреевич, младший научный сотрудник, научно-исследовательская лаборатория клинической аритмологии</p><p>197341, Санкт-Петербург, ул. Аккуратова, 2</p><p> </p></bio><bio xml:lang="en"><p>Nikita A. Prihod’ko, Junior Research Scientist, Arrhythmology Research Department</p><p>2, Akkuratova str., Saint Petersburg, 19734</p></bio><email xlink:type="simple">prihinn@yandex.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/0000-0002-8651-7777</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Любимцева</surname><given-names>Т. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Lubimceva</surname><given-names>T. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Любимцева Тамара Алексеевна, канд. мед. наук, старший научный сотрудник, научно-исследовательская лаборатория клинической аритмологии</p><p>197341, Санкт-Петербург, ул. Аккуратова, 2</p></bio><bio xml:lang="en"><p>Tamara A. Lubimceva, Cand. Sci. (Med.), Senior Research Scientist, Arrhythmology Research Department</p><p>2, Akkuratova str., Saint Petersburg, 19734</p></bio><email xlink:type="simple">toma0704@mail.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/0000-0002-1435-4286</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Козленок</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Kozlenok</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Kозленок Андрей Валерьевич, канд. мед. наук, заведующий НИО физиологии кровообращения</p><p>197341, Санкт-Петербург, ул. Аккуратова, 2</p></bio><bio xml:lang="en"><p>Andrey V. Kozlenok, Cand. Sci. (Med.), Head of Research Department for Circulatory Physiology</p><p>2, Akkuratova str., Saint Petersburg, 19734</p></bio><email xlink:type="simple">avkozlenok@yandex.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/0000-0002-2334-1663</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лебедев</surname><given-names>Д. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Lebedev</surname><given-names>D. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Лебедев Дмитрий Сергеевич, д-р мед. наук, профессор, главный научный сотрудник, руководитель НИО аритмологии</p><p>197341, Санкт-Петербург, ул. Аккуратова, 2</p></bio><bio xml:lang="en"><p>Dmitry S. Lebedev, Dr. Sci. (Med.), Professor, Head of Arrhythmology Research Department</p><p>2, Akkuratova str., Saint Petersburg, 19734</p></bio><email xlink:type="simple">lebedevdmitry@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение «Национальный медицинский исследовательский центр имени В.А. Алмазова» Министерства здравоохранения Российской Федерации (ФГБУ «НМИЦ им. В.А. Алмазова» Минздрава России);&#13;
Санкт-Петербургское государственное бюджетное учреждение здравоохранения «Городская многопрофильная больница № 2» (СПб ГБУЗ «ГМПБ № 2»)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Almazov National Medical Research Centre of the Ministry of Health of the Russian Federation (Almazov National Medical Research Centre);&#13;
Saint-Petersburg City Multiservice Hospital № 2</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение «Национальный медицинский исследовательский центр имени В.А. Алмазова» Министерства здравоохранения Российской Федерации (ФГБУ «НМИЦ им. В.А. Алмазова» Минздрава России)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Almazov National Medical Research Centre of the Ministry of Health of the Russian Federation (Almazov National Medical Research Centre)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>01</day><month>10</month><year>2024</year></pub-date><volume>39</volume><issue>3</issue><fpage>72</fpage><lpage>79</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мамедова А.И., Приходько Н.А., Любимцева Т.А., Козленок А.В., Лебедев Д.С., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Мамедова А.И., Приходько Н.А., Любимцева Т.А., Козленок А.В., Лебедев Д.С.</copyright-holder><copyright-holder xml:lang="en">Mamedova A.I., Prihod’ko N.A., Lubimceva T.A., Kozlenok A.V., Lebedev D.S.</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.sibjcem.ru/jour/article/view/2428">https://www.sibjcem.ru/jour/article/view/2428</self-uri><abstract><p>Основной проблемой при отборе пациентов с выраженной хронической недостаточностью (ХСН) и полной блокадой левой ночки пучка Гиса (ПБЛНПГ) на сердечную ресинхронизирующую терапию (СРТ) остается отсутствие единых подходов к определению механической диссинхронии (МД) и критериев отбора.</p><sec><title>Цель исследования</title><p>Цель исследования: изучить показатели индекса МД и параметров глобальной и регионарной сократительной способности, полученных на основании трехмерной эхокардиографии (3D ЭхоКГ) у больных с выраженным снижением систолической функции, ПБЛНПГ на фоне различных типов изолированной левожелудочковой стимуляции (ЛЖ-стимуляции).</p></sec><sec><title>Материал и методы</title><p>Материал и методы. В исследование включены 12 пациентов с абсолютными показаниями к СРТ и ПБЛНПГ. Средний возраст пациентов – 68,5 [63; 73,5] лет, 83% мужчин (n = 10). В рамках имплантации СРТ-устройства производилась изолированная ЛЖ-стимуляция трансвенозным эпикардиальным и временным эндокардиальным способом. Во время стимуляции в каждой точке выполнялась чреспищеводная эхокардиография (3D ЧП ЭхоКГ) с последующим расчетом индексов МД, глобальной и сегментарной сократимости, определением зон поздней активации ЛЖ, и ЭКГ-мониторингом с помощью LabSystem Pro EP Recording System (Bard Electrophysiology, США). Всего изучены результаты стимуляции в 88 точках.</p></sec><sec><title>Результаты</title><p>Результаты. Индексы глобальной (фракция выброса (ФВ) 3D модели ЛЖ, 23,8 [22; 28,4]) и сегментарной сократимости миокарда (ExсAvg, 3,5 [2,1; 5,6]), степень МД (SDI-16, 14,9 [8,9; 23,1]) и глобальной продольной деформации (ГД, –5,33% [10,90%; –15,4%]) демонстрировали значимое снижение систолической функции и наличие выраженной внутрижелудочковой диссинхронии, характерной для ПБЛНПГ, и значимо изменялись (ExcAvg, p &lt; 0,001; 3D EF, p = 0,003; Tmsv-6 SD, р = 0,03) в зависимости от точки и метода стимуляции. Выявлена умеренная прямая зависимость индекса диссинхронии SDI-16 с длительностью комплекса QRS и умеренная обратная – с ExсAvg и ФВ ЛЖ.</p></sec><sec><title>Заключение</title><p>Заключение. Оценка механической диссинхронии и зон поздней активации является важным аспектом оптимизации ЛЖ ответа при СРТ у пациентов с выраженной систолической дисфункцией и блокадой левой ножки пучка Гиса (БЛНПГ).</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Background</title><p>Background. The main problem in patient selection for cardiac resynchronization therapy (CRT) is the lack of unified approaches to the definition of mechanical dyssynchrony (MD) and selection criteria, particularly, in patients with left bundle branch block (LBBB).</p></sec><sec><title>Aim</title><p>Aim: To study mechanical dyssynchrony indices and three-dimensional Echo (3DE) criteria of global and local contractility function in patients with chronic heart failure (CHF) and LBBB during different types of isolated left ventricle (LV) pacing.</p><p>Methodology and Research Methods. The experimental intraoperative study involved 88 points obtained from 12 patients with CRT class IA indications and LBBB. During isolated LV pacing as part of CRT implantation procedure endocardial and epicardial pacing were obtained. Transesophageal Echo (TEE) cineloops recording and paced QRS complex morphology registrations by means of LabSystem Pro Electrophysiological Recording System (Bard Electrophysiology, USA) were performed during each stimulation episode. Philips Qlab 10 software was used for TEE data analysis.</p></sec><sec><title>Results</title><p>Results. The global (3D EF, 23.8 [22; 28.4], GLS, –5.33% [10.90%; –15.4%]) and local contractility (ExсAvg 3.5 [2.1; 5.6]) criteria and dyssyncrony indices (SDI-16, 14.9 [8.9; 23.1]) showed severe systolic dysfunction and intraventricular dyssynchrony – typical signs in this patient group, and differed significantly (3D EF, p = 0.003; GLS, p = 0.004; ExcAvg, p &lt; 0.001; Tmsv-6 SD, р = 0.03) depending on the stimulation method and site. A moderate direct correlation between SDI-16 and the QRS duration (common electical dyssynchrony criterium) and inverse correlation with ExcAvg and 3D LVEF also describes LV response.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>механическая левожелудочковая диссинхрония</kwd><kwd>полная блокада левой ножки пучка Гиса</kwd><kwd>сердечная ресинхронизирующая терапия</kwd><kwd>трехмерная эхокардиография в режиме реального времени</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mechanical dyssynchrony</kwd><kwd>left bundle branch block</kwd><kwd>cardiac resynchronization therapy</kwd><kwd>real-time three-dimensional echocardiography</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование проведено в рамках государственного задания. Номер регистрации ЕГИСУ НИОКТР № 122041500020-5</funding-statement><funding-statement xml:lang="en">The study was carried out within the framework of the state task USISU registration number No. 122041500020-5</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">Tavazzi L. et al. Long-term mortality with cardiac resynchronization therapy in the Cardiac Resynchronization-Heart Failure (CARE-HF) trial. Eur. J. Heart Fail. 2012;14(6):628–634. DOI: 10.1093/eurjhf/hfs055.</mixed-citation><mixed-citation xml:lang="en">Tavazzi L. et al. Long-term mortality with cardiac resynchronization therapy in the Cardiac Resynchronization-Heart Failure (CARE-HF) trial. Eur. J. Heart Fail. 2012;14(6):628–634. 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