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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">vestar</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник аритмологии</journal-title><trans-title-group xml:lang="en"><trans-title>Journal of Arrhythmology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8641</issn><issn pub-type="epub">2658-7327</issn><publisher><publisher-name>НАО «Инкарт»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.35336/VA-1209</article-id><article-id custom-type="edn" pub-id-type="custom">KLXSYX</article-id><article-id custom-type="elpub" pub-id-type="custom">vestar-1372</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>ЭКСПЕРИМЕНТАЛЬНОЕ ИССЛЕДОВАНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EXPERIMENTAL ARTICLE</subject></subj-group></article-categories><title-group><article-title>Лазерная катетерная аблация зон предсердных ганглионарных сплетений: влияние на индуцируемость фибрилляции предсердий и оценка риска повреждения пищевода в эксперименте</article-title><trans-title-group xml:lang="en"><trans-title>Laser catheter ablation of atrial zones with ganglionated plexi: impact on atrial fibrillation inducibility and the risk of esophageal damage in experimental settings</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0116-7753</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вахрушев</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Vakhrushev</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вахрушев Александр Дмитриевич </p><p>Санкт-Петербург, ул. Аккуратова, д.2</p></bio><bio xml:lang="en"><p>Alexandr D. Vakhrushev</p><p>Saint Petersburg, 2 Akkuratova str.</p></bio><email xlink:type="simple">advakhrushev@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/0000-0003-3246-5948</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кондори Леандро</surname><given-names>Э. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Condori Leandro</surname><given-names>E. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург, ул. Аккуратова, д.2</p></bio><bio xml:lang="en"><p>Saint Petersburg, 2 Akkuratova str.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7185-0983</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Коробченко</surname><given-names>Л. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Korobchenko</surname><given-names>L. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург, ул. Аккуратова, д.2</p></bio><bio xml:lang="en"><p>Saint Petersburg, 2 Akkuratova str.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0735-7822</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Митрофанова</surname><given-names>Л. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Mitrofanova</surname><given-names>L. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург, ул. Аккуратова, д.2</p></bio><bio xml:lang="en"><p>Saint Petersburg, 2 Akkuratova str.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2334-1663</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>Санкт-Петербург, ул. Аккуратова, д.2</p></bio><bio xml:lang="en"><p>Saint Petersburg, 2 Akkuratova str.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6553-9141</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Михайлов</surname><given-names>Е. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Mikhailov</surname><given-names>E. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Санкт-Петербург, ул. Аккуратова, д.2</p></bio><bio xml:lang="en"><p>Saint Petersburg, 2 Akkuratova str.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «НМИЦ им. В.А.Алмазова» МЗ РФ</institution><country>Россия</country></aff><aff xml:lang="en"><institution>FSBI «Almazov NMRC» of MH RF</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>30</day><month>05</month><year>2024</year></pub-date><volume>31</volume><issue>2</issue><fpage>44</fpage><lpage>53</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Вахрушев А.Д., Кондори Леандро Э.И., Коробченко Л.Е., Митрофанова Л.Б., Лебедев Д.С., Михайлов Е.Н., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Вахрушев А.Д., Кондори Леандро Э.И., Коробченко Л.Е., Митрофанова Л.Б., Лебедев Д.С., Михайлов Е.Н.</copyright-holder><copyright-holder xml:lang="en">Vakhrushev A.D., Condori Leandro E.I., Korobchenko L.E., Mitrofanova L.B., Lebedev D.S., Mikhailov E.N.</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://vestar.elpub.ru/jour/article/view/1372">https://vestar.elpub.ru/jour/article/view/1372</self-uri><abstract><sec><title>Цель</title><p>Цель. Изучить потенциальную применимость транскатетерной лазерной аблации для деструкции зон преимущественного расположения предсердных ганглионарных сплетений (ГС), а также оценить безопасность данной методики в отношении риска повреждения пищевода.</p><p>Материал и методы исследования. Работа состояла из двух этапов: (1) в эксперименте ex vivo проводилась оценка риска повреждения пищевода при лазерной аблации эндокардиальной поверхности дорсальной (задней) стенки левого предсердия (ЛП); было использовано 3 органокомплекса свиней, включающие сердце, легкие и пищевод; (2) эксперименты in vivo проводились для оценки влияния лазерной катетерной аблации зон предсердных ГС на индуцируемость фибрилляции предсердий (ФП) - включены 13 свиней ландрас (средний вес 38,8±1,2 кг).</p></sec><sec><title>Ex vivo</title><p>Ex vivo: выполнялись воздействия мощностью 15 Ватт различной длительности с термосканированием стенки ЛП, внутренней и наружной частей пищевода с помощью тепловизионной камеры; затем выполнялось макроскопическое исследование органокомплекса.</p></sec><sec><title>In vivo</title><p>In vivo: до и после катетерной лазерной аблации (15 Вт) зон ГС правого предсердия и межпредсердной перегородки оценивался эффективный рефрактерный период и индуцируемость ФП путем высокочастотной стимуляции предсердий (33 Гц, 2 мин). После эвтаназии и извлечения сердца и легких единым блоком проводилось микроскопическое исследование очагов лазерных повреждений.</p></sec><sec><title>Результаты</title><p>Результаты. Ex vivo эксперимент: в двух случаях было выявлено повреждение эндокарда ЛП при времени воздействия 30 с. Повреждение пищевода наблюдалось при воздействии &gt;30 с. с приростом температуры &gt;11 °C. В эксперименте in vivo нанесено 78 лазерных воздействий (в среднем, 6±1 на одно животное) на дорсальной стенке правого предсердия и в межпредсердной перегородке. Эффективный рефрактерный период предсердий не изменился (183±20 мс до аблации и 186±18 мс после аблации, Р=0,99).</p><p>До аблации ФП была индуцирована у 12 из 13 животных (92%). После аблации ФП индуцирована у 7 животных (54%) (Р=0,03). Была выявлена тенденция к снижению длительности ФП после проведения лазерной аблации зон ГС (до аблации медиана длительности аритмии 18 [5; 141] с, после аблации - 2 [0; 14] с, Р=0,06). Трансмуральное повреждение миокарда наблюдалось у 46% животных. Повреждений внесердечных структур не выявлялось.</p></sec><sec><title>Выводы</title><p>Выводы. Лазерная аблация на дорсальной (задней) стенке ЛП мощностью 15 Вт менее 30 с. не приводит к существенному нагреву и повреждению стенки пищевода ex vivo. Транскатетерная лазерная аблация зон ГС предсердий осуществима и снижает индуцируемость ФП, при этом не наблюдается изменений эффективного рефрактерного периода предсердий после аблации из правого предсердия.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. To study the potential applicability of transcatheter laser ablation for the destruction of atrial ganglionated plexi (GP) zones and the safety of this technique in relation to inadvertent esophageal damage.</p></sec><sec><title>Methods</title><p>Methods. This was a two-stage investigation: (1) ex vivo experiments: the risk of esophageal damage during ablation on the dorsal (posterior) left atrial (LA) wall was assessed; three swine organ complexes were used, which included the heart, lungs and esophagus; (2) in vivo experiments assessing the effects of laser catheter ablation of GP zones on the inducibility of atrial fibrillation (AF) and changes in atrial effective refractory period - included 13 landrace pigs (average weight 38.8±1.2 kg).</p></sec><sec><title>Ex vivo</title><p>Ex vivo: laser catheter ablations were performed from the endocardial surface of the LA towards the esophagus with a power of 15 watts of varying duration; ablation was performed under thermal scanning of the LA and esophagus; then a macroscopic examination of the myocardial and esophageal walls was performed.</p></sec><sec><title>In vivo</title><p>In vivo: before and after catheter laser ablation (15 W) of the GP zones in the right atrium and atrial septum, atrial ERP was assessed with programmed stimulation, and AF induction with high-frequency (33 Hz, 2 min) stimulation was evaluated. At the end of the experiment, the animals were euthanized, and the heart and lungs were collected in a single unit.</p></sec><sec><title>Results</title><p>Results. Ex vivo experiments: in two cases, damage to the endocardium of the LA was detected at an exposure time of 30 s. Damage to the esophagus was observed with a longer exposure time (&gt; 30 seconds) with a 11.3-15.4°C increase in temperature. In the in vivo experiments, 78 laser applications (6±1 in one swine) were delivered to the posterior wall of the right atrium and atrial septum. Atrial effective refractory period was not altered after ablation (183±20 ms vs 186±18 ms, P=0.99). At the baseline, AF was induced in 12 out of 13 animals (92%). After ablation, AF was induced in 7 animals (54%) (P=0.03). There was a trend toward a decrease in the duration of AF after laser ablation of GP zones (18 [5; 141] vs. 2 [0; 14] s after ablation, P=0.06). Transmural damage was observed in 46% of the hearts. No damage to extra-cardiac structures was detected.</p></sec><sec><title>Conclusion</title><p>Conclusion. Ex vivo, laser ablation on the dorsal (posterior) wall of the LA with a power of 15 W and duration &lt;30 s does not lead to visible damage to the esophagus. Laser ablation of atrial GP zones is feasible and reduces the inducibility of AF. No change in atrial effective refractory period is detected following GP zones ablation, when performed from the right atrium.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>фибрилляция предсердий</kwd><kwd>радиочастотная аблация</kwd><kwd>лазерная аблация</kwd><kwd>экспериментальное исследование</kwd></kwd-group><kwd-group xml:lang="en"><kwd>atrial fibrillation</kwd><kwd>radiofrequency ablation</kwd><kwd>laser ablation</kwd><kwd>experimental study</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">Triposkiadis F, Karayannis G, Giamouzis G, et al. The sympathetic nervous system in heart failure physiology, pathophysiology, and clinical implications. Journal of the American College of Cardiology. 2009;54(19): 1747-1762. https://doi.org/10.1016/j.jacc.2009.05.015.</mixed-citation><mixed-citation xml:lang="en">Triposkiadis F, Karayannis G, Giamouzis G, et al. 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