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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Journal of Experimental and Clinical Surgery</journal-id><journal-title-group><journal-title xml:lang="en">Journal of Experimental and Clinical Surgery</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник экспериментальной и клинической хирургии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2070-478X</issn><issn publication-format="electronic">2409-143X</issn><publisher><publisher-name xml:lang="en">Voronezh State Medical University named after N.N. Burdenko</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">1603</article-id><article-id pub-id-type="doi">10.18499/2070-478X-2022-15-3-221-227</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Original articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Оригинальные статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">The prevention of leakage of ileo-colonic anastomosis in an experimental peritonitis</article-title><trans-title-group xml:lang="ru"><trans-title>Предупреждение несостоятельности тонко-толстокишечных анастомозов в условиях экспериментального перитонита</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8742-0424</contrib-id><name-alternatives><name xml:lang="en"><surname>Vajner</surname><given-names>Jurij Sergeevich</given-names></name><name xml:lang="ru"><surname>Вайнер</surname><given-names>Юрий Сергеевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>docent, Department of faculty surgery</p></bio><bio xml:lang="ru"><p>доцент, кандидат медицинских наук, кафедра факультетской хирургии</p></bio><email>doctorenco@rambler.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4315-7484</contrib-id><name-alternatives><name xml:lang="en"><surname>Atamanov</surname><given-names>Konstantin Viktorovich</given-names></name><name xml:lang="ru"><surname>Атаманов</surname><given-names>Константин Викторович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>docent, head of the Department of faculty surgery</p></bio><bio xml:lang="ru"><p>заведующий кафедрой, доктор медицинских наук, кафедра факультетской хирургии</p></bio><email>k_atamanov@hotmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4336-0677</contrib-id><name-alternatives><name xml:lang="en"><surname>Beljakova</surname><given-names>Tat'jana Sagadatovna</given-names></name><name xml:lang="ru"><surname>Белякова</surname><given-names>Татьяна Сагадатовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>assistant, Department of faculty surgery</p></bio><bio xml:lang="ru"><p>ассистент, кафедра факультетской хирургии</p></bio><email>tanya_belyako@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Novosibirsk state medical University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО НГМУ Минздрава РФ</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-09-29" publication-format="electronic"><day>29</day><month>09</month><year>2022</year></pub-date><volume>15</volume><issue>3</issue><issue-title xml:lang="ru"/><fpage>221</fpage><lpage>227</lpage><history><date date-type="received" iso-8601-date="2022-05-29"><day>29</day><month>05</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Voronezh N.N. Burdenko State Medical University</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, ФГБОУ ВО ВГМУ им. Н.Н. Бурденко Минздрава России</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Voronezh N.N. Burdenko State Medical University</copyright-holder><copyright-holder xml:lang="ru">ФГБОУ ВО ВГМУ им. Н.Н. Бурденко Минздрава России</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://vestnik-surgery.com/journal/about/editorialPolicies</ali:license_ref></license></permissions><self-uri xlink:href="https://vestnik-surgery.com/journal/article/view/1603">https://vestnik-surgery.com/journal/article/view/1603</self-uri><abstract xml:lang="en"><p>Introduction. In colon surgery, intestinal anastomotic leaks are the main contributor to postoperative mortality. The incidence of this complication in the formation of small-colonic anastomoses in urgent surgery reaches 12% or more. It is required to develop simple and reliable techniques of intestinal suturing in conditions of peritonitis.The aim of the study was to investigate the morphological events occurring in the small-colonic anastomosis formed using various options under simulated peritonitis.Materials and methods. An experimental study involved 2 groups of Wistar white rats (25 animals - the control group and 25 - the main one). Peritonitis was simulated by dissecting the ileum into ¼ circles in 5-6 cm from the ileocecal angle. A day later, a relaparotomy was performed, a section of the intestine with a defect was excised, the distal loop was tied up, a small-colonic anastomosis was formed with a proximal loop: in “the end-to-side” study group the intervention was performed according to the author's method (RF patent No. 2709253 dated 12/17/2019), in the control group – using side-to-side anastomosis. In 6 days, anastomosis was taken from the survived animals for histological examination. Histological examination was carried out at a magnification x400 and x630. Micromorphometry was performed with the count of neutrophils, fibroblasts and measurement of the relative area of ​​blood vessels in the anastomotic suture. Fisher's exact test, Mann-Whitney test were used for statistical data processing, quantitative data were described in the median and interquartile interval format.Results. An original end-to-side anastomosis resulted in a greater number of fibroblasts and blood vessels in the muscular and submucosal layers of the intestinal wall in the suture zone than in the side-to-side anastomosis. The number of anastomotic leaks in the study group was 4 times less than in the control group.Conclusion. The use of the authors’ end-to-side anastomosis technique improves blood supply and repair of the suture area in a small-colonic anastomosis under 1-day simulated peritonitis; this being accompanied by a decreased incidence of anastomosis failure.</p></abstract><trans-abstract xml:lang="ru"><p>Обоснование. В хирургии ободочной кишки несостоятельность кишечных анастомозов вносит основной вклад в послеоперационную летальность. Частота этого осложнения при формировании тонко-толстокишечных анастомозов в ургентной хирургии достигает 12% и более. Требуется разработка простых и надежных способов кишечного шва в условиях перитонита.Цель исследования. Исследовать морфологические явления, происходящие в тонко-толстокишечном анастомозе, сформированном по разным способам, в условиях экспериментального перитонита. Материалы и методы. Проведено экспериментальное исследование – сформированы 2 группы белых крыс линии Вистар (25 животных – контрольная группа и 25 - основная). Создавали модель перитонита путем рассечения подвздошной кишки на ¼ окружности в 5-6 см от илеоцекального угла. Через сутки проводили релапаротомию, иссекали участок кишки с дефектом, дистальную петлю перевязывали, проксимальной петлей формировали тонко-толстокишечный анастомоз: в группе исследования «конец-в-бок» по авторской методике (патент РФ № 2709253 от 17.12.2019), в группе контроля – анастомоз «бок-в-бок». На 6 сутки у выживших животных проводили забор анастомоза для гистологического исследования. Осуществляли гистологическое исследование при увеличении х400 и х630. Выполняли микроморфометрию с подсчетом нейтрофилов, фибробластов и замером относительной площади кровеносных сосудов в шовной полосе анастомоза. Для статистической обработки данных использовали точный критерий Фишера, критерий Манна-Уитни, количественные данные описаны в формате медиана и интерквартильный интервал. Результаты. В результате применения оригинального анастомоза «конец-в-бок» в мышечном и подслизистом слоях кишечной стенки в зоне шва отмечено большее количество фибробластов и кровеносных сосудов, чем при формировании анастомоза «бок-в-бок». При этом число несостоятельностей анастомоза в группе исследования было в 4 раза меньше, чем в контрольной группе.Заключение. Применение анастомоза «конец-в-бок» по авторской методике при формировании тонко-толстокишечного анастомоза в условиях 1-суточного экспериментального перитонита способствует улучшению кровоснабжения шовной полосы и улучшению репарации по линии шва, что сопровождается снижением частоты несостоятельности анастомоза.</p></trans-abstract><kwd-group xml:lang="en"><kwd>peritonitis</kwd><kwd>anastomosis</kwd><kwd>insolvency</kwd><kwd>ileostomy</kwd><kwd>acute intestinal obstruction</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>перитонит</kwd><kwd>анастомоз</kwd><kwd>несостоятельность</kwd><kwd>илеостома</kwd><kwd>острая кишечная непроходимость</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Cherdancev DV, Pozdnjakov AA, Shpak VV, Rjabkov JuV, Popov AE. Analysis of complications after abdominal operations on the colon. Sovremennye problemy nauki i obrazovanija. 2017; 2: 78. 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