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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">Surgery and Oncology</journal-id><journal-title-group><journal-title xml:lang="en">Surgery and Oncology</journal-title><trans-title-group xml:lang="ru"><trans-title>Хирургия и онкология</trans-title></trans-title-group></journal-title-group><issn publication-format="electronic">2949-5857</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">886</article-id><article-id pub-id-type="doi">10.17650/2949-5857-2025-15-4-42-52</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>ORIGINAL REPORT</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ОРИГИНАЛЬНОЕ ИССЛЕДОВАНИЕ</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">Determination of threshold values of hematological indices in patients with cancer of the left half of the colon for prediction of anastomotic leak</article-title><trans-title-group xml:lang="ru"><trans-title>Определение пороговых значений гематологических индексов у больных раком левой половины толстой кишки для прогнозирования несостоятельности анастомоза</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-8773-7475</contrib-id><name-alternatives><name xml:lang="en"><surname>Sivolob</surname><given-names>M. D.</given-names></name><name xml:lang="ru"><surname>Сиволоб</surname><given-names>М. Д.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>maksim-sivlb@rambler.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3621-7394</contrib-id><name-alternatives><name xml:lang="en"><surname>Polikarpova</surname><given-names>S. B.</given-names></name><name xml:lang="ru"><surname>Поликарпова</surname><given-names>С. Б.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>maksim-sivlb@rambler.ru</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7278-8525</contrib-id><name-alternatives><name xml:lang="en"><surname>Erygin</surname><given-names>D. V.</given-names></name><name xml:lang="ru"><surname>Ерыгин</surname><given-names>Д. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>maksim-sivlb@rambler.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3987-9361</contrib-id><name-alternatives><name xml:lang="en"><surname>Lebedko</surname><given-names>M. S.</given-names></name><name xml:lang="ru"><surname>Лебедько</surname><given-names>М. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>maksim-sivlb@rambler.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-4065-0055</contrib-id><name-alternatives><name xml:lang="en"><surname>Soliev</surname><given-names>R. M.</given-names></name><name xml:lang="ru"><surname>Солиев</surname><given-names>Р. М.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>maksim-sivlb@rambler.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-3829-839X</contrib-id><name-alternatives><name xml:lang="en"><surname>Orozbekov</surname><given-names>A. O.</given-names></name><name xml:lang="ru"><surname>Орозбеков</surname><given-names>А. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>maksim-sivlb@rambler.ru</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">S.S. Yudin Moscow City Clinical Hospital, Moscow Healthcare Department</institution></aff><aff><institution xml:lang="ru">ГБУЗ г. Москвы «Городская клиническая больница им. С.С. Юдина Департамента здравоохранения г. Москвы»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">I.M. Sechenov First Moscow State Medical University, Ministry of Health of Russia (Sechenov University)</institution></aff><aff><institution xml:lang="ru">ФГАОУ ВО Первый Московский государственный медицинский университет им. И.М. Сеченова Минздрава России (Сеченовский Университет)</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">S.P. Botkin Moscow Multidisciplinary Scientific and Clinical Center, Moscow Healthcare Department</institution></aff><aff><institution xml:lang="ru">ГБУЗ г. Москвы «Московский многопрофильный научно-клинический центр им. С.П. Боткина Департамента здравоохранения г. Москвы»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-12-21" publication-format="electronic"><day>21</day><month>12</month><year>2025</year></pub-date><volume>15</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>42</fpage><lpage>52</lpage><history><date date-type="received" iso-8601-date="2025-12-21"><day>21</day><month>12</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2025-12-21"><day>21</day><month>12</month><year>2025</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, ABV-press</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, АБВ-пресс</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">ABV-press</copyright-holder><copyright-holder xml:lang="ru">АБВ-пресс</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://onco-surgery.info/jour/about/editorialPolicies</ali:license_ref></license></permissions><self-uri xlink:href="https://onco-surgery.info/jour/article/view/886">https://onco-surgery.info/jour/article/view/886</self-uri><abstract xml:lang="en"><p><bold>Background.</bold> Indices calculated based on complete blood count data (neutrophil to lymphocyte ratio, platelet to lymphocyte ratio, systemic immune-inflammation index) are considered potential predictors of clinical outcomes in patients with colorectal cancer, although their prognostic value has not been definitively established.</p> <p><bold>Aim.</bold> To evaluate prognostic significance of the above-mentioned indices for evaluation of risk of immediate complications after surgical treatment in patients with cancer of the left half of the colon and to establish threshold values of each index affecting prognosis.</p> <p><bold>Materials and methods.</bold> The study included 187 patients with stage I–III colorectal cancer who underwent radical surgical treatment between 2019 and 2023. The values of the specified indices were assessed before surgery and on postoperative days 1, 3, and 5, as well as the rate and pattern of postoperative complications (according to the Clavien – Dindo classification) and the incidence of anastomotic leak. ROC analysis was used to determine threshold values of indices influencing the risk of anastomotic leak; statistical analysis included logistic regression.</p> <p><bold>Results.</bold> No statistically significant effect of the studied hematological prognostic indices on the risk of anastomotic leak was observed (<italic>p</italic> &gt; 0.05). The threshold value of the neutrophil to lymphocyte ratio on postoperative day 5 that may affect the risk of anastomotic leak was 3.25 (area under curve (AUC) 0.842); for the platelet to lymphocyte ratio on postoperative day 3–172.3 (AUC 0.678); for systemic immune-inflammation index on postoperative day 5–1027.9 (AUC 0.866).</p> <p><bold>Conclusion.</bold> The analysis revealed statistically non-significant trends regarding the influence of the dynamics of certain indices on the risk of anastomotic leak, but no evidence of their independent role was found. The use of hematological indices may be considered only a part of comprehensive clinical and laboratory risk stratification.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold> Индексы, рассчитываемые на основе данных общего анализа крови (нейтрофильно-лимфоцитарное соотношение, тромбоцитарно-лимфоцитарное соотношение, системный индекс иммуновоспалительного ответа), рассматриваются в качестве возможных предикторов клинических исходов у пациентов с колоректальным раком, однако их прогностическая ценность окончательно не определена.</p> <p><bold>Цель исследования</bold> – оценить прогностическую значимость указанных индексов для оценки рисков непосредственных осложнений хирургического лечения больных раком левой половины толстой кишки, а также определить для каждого индекса пороговые значения, способные влиять на прогноз.</p> <p><bold>Материалы и методы.</bold> В ретроспективное исследование включены 187 пациентов с I–III стадией колоректального рака, перенесших радикальное хирургическое лечение в 2019–2023 гг. Изучали значения гематологических индексов до операции и на 1, 3 и 5-е сутки после вмешательства, частоту и структуру послеоперационных осложнений (по шкале Clavien–Dindo), частоту развития несостоятельности анастомоза. Для индексов с помощью ROC-анализа определяли пороговые значения, способные влиять на риск развития несостоятельности анастомоза, при статистической обработке использовали логистическую регрессию.</p> <p><bold>Результаты.</bold> Достоверное влияние исследуемых гематологических прогностических индексов на риск развития несостоятельности анастомоза не выявлено (<italic>р</italic> &gt; 0,05). Способное повлиять на риск развития несостоятельности анастомоза пороговое значение нейтрофильно-лимфоцитарного соотношения на 5-й день после операции составило 3,25 (площадь под ROC-кривой 0,842), тромбоцитарно-лимфоцитарного соотношения на 3-й день после операции – 172,3 (площадь под ROC-кривой 0,678), системного индекса иммуновоспалительного ответа на 5-й день после операции – 1027,9 (площадь под ROC-кривой 0,866).</p> <p><bold>Заключение.</bold> В ходе анализа отмечены статистически незначимые тенденции влияния динамики отдельных индексов на риск развития несостоятельности анастомоза, однако подтверждения их самостоятельной роли не получено. Использование гематологических индексов может рассматриваться только в рамках комплексной клинико-лабораторной стратификации пациентов.</p></trans-abstract><kwd-group xml:lang="en"><kwd>colorectal cancer</kwd><kwd>anastomotic leak</kwd><kwd>neutrophil to lymphocyte ratio</kwd><kwd>platelet to lymphocyte ratio</kwd><kwd>systemic immune-inflammation index</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>колоректальный рак</kwd><kwd>несостоятельность анастомоза</kwd><kwd>нейтрофильно-лимфоцитарное соотношение</kwd><kwd>тромбоцитарно-лимфоцитарное соотношение</kwd><kwd>системный индекс иммуновоспалительного ответа</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Li H., Zhao Y., Zheng F. Prognostic significance of elevated preoperative neutrophil-to-lymphocyte ratio for patients with colorectal cancer undergoing curative surgery: a meta-analysis. Medicine (Baltimore) 2019;98(3):e14126. 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