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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">rmt</journal-id><journal-title-group><journal-title xml:lang="ru">Общая реаниматология</journal-title><trans-title-group xml:lang="en"><trans-title>General Reanimatology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1813-9779</issn><issn pub-type="epub">2411-7110</issn><publisher><publisher-name>FSBI "SRIGR" RAMS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15360/1813-9779-2023-5-2338</article-id><article-id custom-type="elpub" pub-id-type="custom">rmt-2363</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>ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EXPERIMENTAL STUDIES</subject></subj-group></article-categories><title-group><article-title>Дестабилизация организованной структуры фибрилляции желудочков при реперфузии</article-title><trans-title-group xml:lang="en"><trans-title>Destabilization of the Organized Structure of Ventricular Fibrillation During Reperfusion</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>Гурьянов</surname><given-names>М. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Gurianov</surname><given-names>M. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Марат Ильич Гурьянов</p><p>199034, г. Санкт-Петербург, Университетская наб., стр. 7–9</p><p>191036, г. Санкт-Петербург, Лиговский пр., стр. 2–4</p></bio><bio xml:lang="en"><p>Marat I. Gurianov</p><p>7–9 Universitetskaya nab., 199034 St. Petersburg</p><p>2–4 Ligovskiy pr., 191036 St. Petersburg</p></bio><email xlink:type="simple">mgurianov@yandex.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>Яблонский</surname><given-names>П. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Yablonsky</surname><given-names>P. K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>199034, г. Санкт-Петербург, Университетская наб., стр. 7–9</p><p>191036, г. Санкт-Петербург, Лиговский пр., стр. 2–4</p></bio><bio xml:lang="en"><p>7–9 Universitetskaya nab., 199034 St. Petersburg</p><p>2–4 Ligovskiy pr., 191036 St. Petersburg</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Санкт-Петербургский государственный университет; Санкт-Петербургский НИИ фтизиопульмонологии Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>St. Petersburg State University; St. Petersburg Research Institute of Phthisiopulmonology, Ministry of Health of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>20</day><month>09</month><year>2023</year></pub-date><volume>19</volume><issue>5</issue><fpage>59</fpage><lpage>64</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гурьянов М.И., Яблонский П.К., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Гурьянов М.И., Яблонский П.К.</copyright-holder><copyright-holder xml:lang="en">Gurianov M.I., Yablonsky P.K.</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.reanimatology.com/rmt/article/view/2363">https://www.reanimatology.com/rmt/article/view/2363</self-uri><abstract><p>Цель исследования — изучить влияние реперфузии на организованную частотно-амплитудную структуру фибрилляции желудочков (ФЖ) сердца собаки. </p><sec><title>Материалы и методы</title><p>Материалы и методы. Провели 4 опыта на 8 собаках. В каждом опыте изолированное сердце одной собаки перфузировали кровью второй (поддерживающей) собаки. В 4 опытах на изолированном искусственно перфузируемом сердце выполнили 6 эпизодов 3-минутной ишемии и 10-минутной реперфузии сердца при ФЖ (1–2 эпизода ишемии-реперфузии в одном опыте). Каждому эпизоду 3-минутной ишемии при ФЖ предшествовала 10-минутная перфузия сердца при ФЖ. Регистрировали электрограмму желудочков при ФЖ. Проводили частотно-амплитудный (спектральный) анализ 1-секундных отрезков электрограммы и определяли удельный вес (в %) осцилляций частотой 0,5–15 Гц в 10-секундных отрезках электрограммы в 6 эпизодах перфузии, ишемии и реперфузии при ФЖ (M±m, n=60). Стабильная частотно-амплитудная структура ФЖ при перфузии служила контролем, с которым сравнивали частотно-амплитудную структуру ФЖ при ишемии и реперфузии. Сравнение параметров ФЖ при перфузии, ишемии и реперфузии проводили по непараметрическому критерию Welch в среде «The R Project for Statistical Computing». </p></sec><sec><title>Результаты</title><p>Результаты. При перфузии сердца при ФЖ, служившей контролем, осцилляции частотой 9–10 Гц доминировали в частотно-амплитудной структуре ФЖ. В первые 30 сек ишемии частота и амплитуда доминирующих осцилляций ФЖ статистически значимо не изменялась по сравнению с контролем при перфузии сердца до ишемии при ФЖ. На 3-й мин ишемии частота доминирующих осцилляций снижалась до 6,5–7,5 Гц, а удельный вес осцилляций — до 26 %. На 1-й мин реперфузии частота доминирующих осцилляций возрастала до 13,5–14,5 Гц, но удельный вес осцилляций оставался сниженным до 26%, как на 3-й мин ишемии. На 2-й мин реперфузии частота доминирующих осцилляций снижалась до 9,5–10,5 Гц, а удельный вес доминирующих осцилляций возрастал до 33%. Частота и амплитуда доминирующих осцилляций стабилизировалась на 3–10-й мин реперфузии — осцилляции частотой 9–10 Гц составляли 32–33% спектральной мощности. </p></sec><sec><title>Заключение</title><p>Заключение. Реперфузия при ФЖ характеризуется транзиторной дестабилизацией организованной структуры ФЖ на 1-й мин реперфузии. Организованная структура ФЖ стабилизируется на 2–10-й мин реперфузии. Перфузию сердца при искусственно вызванной ФЖ можно использовать вместо кардиоплегии во время длительной кардиохирургической операции, это может повысить устойчивость оперируемого сердца к ишемии и предотвратить реперфузионные осложнения. </p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim: to study the effect of reperfusion on the organized frequency-amplitude structure of ventricular fibrillation (VF) in the dog heart.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. We conducted 4 experiments on 8 dogs. In each experiment, the isolated heart of one dog was perfused with the blood of the second (supporting) dog. In 4 experiments on an isolated artificially perfused heart, 6 episodes of 3 min ischemia and 10 min reperfusion of the heart were performed in VF (1–2 episodes of ischemia-reperfusion in one experiment). Each episode of 3 min ischemia in VF was preceded by a 10 min perfusion of the heart in VF. Ventricular electrogram was recorded during VF episodes. A frequencyamplitude (spectral) analysis of 1 sec segments of the electrogram was performed, and the proportion (in %) of 0.5–15 Hz frequency oscillations in 10 sec segments of the electrogram was determined in 6 episodes of perfusion, ischemia and reperfusion in VF (M±m, N=60). The VF frequency-amplitude structures during ischemia and reperfusion were compared with the stable VF frequency-amplitude structure during perfusion taken as the control. The nonparametric Welch criterion in the «The R Project for Statistical Computing» software environment was used to compare the VF parameters during perfusion, ischemia and reperfusion. </p></sec><sec><title>Results</title><p>Results. 9–10 Hz frequency oscillations dominated in the VF frequency-amplitude structure during heart perfusion, taken as the control. In the first 30 sec of ischemia, the frequency and amplitude of the dominant oscillations did not significantly change vs VF control obtained during cardiac perfusion. A decrease of dominant oscillations frequency up to 6.5–7.5 Hz, and of the proportion of oscillations — up to 26% was documented at the 3rd min of ischemia. At the 1st min of reperfusion, the frequency of dominant oscillations increased to 13.5–14.5 Hz, but the proportion of oscillations remained reduced to 26%, as at the 3rd min of ischemia. At the 2nd min of reperfusion, the frequency of dominant oscillations decreased to 9.5–10.5 Hz, and the proportion of dominant oscillations increased to 33%. The frequency and amplitude of the dominant oscillations stabilized at 3–10 min of reperfusion: oscillations at 9–10 Hz frequency accounted for 32–33% of the spectral power.</p></sec><sec><title>Conclusion</title><p>Conclusion. Reperfusion in VF is characterized by transient destabilization of VF organized structure at the 1st min of the procedure. VF organized structure regains stabilization within 2–10 min of reperfusion. Cardiac perfusion in intentionally induced VF can be used instead of cardioplegia during major cardiac surgery to boost cardiac resistance to ischemia and prevent or reduce reperfusion complications.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>фибрилляция желудочков</kwd><kwd>перфузия сердца</kwd><kwd>ишемия сердца</kwd><kwd>реперфузия сердца</kwd><kwd>организованная частотно-амплитудная структура фибрилляции</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ventricular fibrillation</kwd><kwd>cardiac perfusion</kwd><kwd>cardiac ischemia</kwd><kwd>cardiac reperfusion</kwd><kwd>organized frequency-amplitude structure of fibrillation</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">Лебедев Д.С., Михайлов Е.Н., Неминущий Н.М., Голухова Е.З., Бабокин В.Е. Березницкая В.В., Васичкина Е.С ., и др. Желудочковые нарушения ритма. 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