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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">1881</article-id><article-id pub-id-type="doi">10.18499/2070-478X-2026-19-2-76-82</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Experience</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Опыт работы (архивный)</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">Bariatric surgery in patients with kidney cancer. Stages of surgical treatment</article-title><trans-title-group xml:lang="ru"><trans-title>Бариатрические хирургические вмешательства у пациентов с раком почки. Этапность хирургического лечения</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Samoylov</surname><given-names>Vladimir S.</given-names></name><name xml:lang="ru"><surname>Самойлов</surname><given-names>Владимир Сергеевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>M.D., Professor of the Department of Simulation Education</p></bio><bio xml:lang="ru"><p>д.м.н., профессор кафедры симуляционного обучения</p></bio><email>vssamoylov@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Stepanenko</surname><given-names>Artem V.</given-names></name><name xml:lang="ru"><surname>Степаненко</surname><given-names>Артем Владимирович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>graduate student of the Department of Surgery with Courses Oncology, Endoscopy, Surgical Pathology, Clinical Transplantology and Organ Donation, State Scientific Center</p></bio><bio xml:lang="ru"><p>аспирант кафедры хирургии с курсами онкологии, эндоскопии, хирургической патологии, клинической трансплантологии и органного донорства Медико-биологического университета инноваций и непрерывного образования</p></bio><email>stepanenko.vsmu@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Novichikhina</surname><given-names>Ekaterina E.</given-names></name><name xml:lang="ru"><surname>Новичихина</surname><given-names>Екатерина Евгеньевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Endocrinologist</p></bio><bio xml:lang="ru"><p>врач-эндокринолог</p></bio><email>kaitenov@yandex.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Zatsepina</surname><given-names>Ekaterina A.</given-names></name><name xml:lang="ru"><surname>Зацепина</surname><given-names>Екатерина Александровна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Endocrinologist</p></bio><bio xml:lang="ru"><p>врач-эндокринолог</p></bio><email>litvinovaea93@mail.ru</email><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Alenkin</surname><given-names>Dmitry A.</given-names></name><name xml:lang="ru"><surname>Аленькин</surname><given-names>Дмитрий Андреевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>student of the medical faculty</p></bio><bio xml:lang="ru"><p>студент лечебного факультета</p></bio><email>alenkin2277@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.N. Burdenko Voronezh State Medical University</institution></aff><aff><institution xml:lang="ru">Воронежский государственный медицинский университет имени Н.Н. Бурденко</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">State Scientific Center of the Russian Federation — Federal Medical Biophysical Center named after A.I. Burnasyan Federal Medical and Biological Agency of Russia</institution></aff><aff><institution xml:lang="ru">Государственный научный центр Российской Федерации - Федеральный медицинский биофизический центр им. А.И. Бурназяна</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Clinic "Health City" LLC (Family Medicine Center "Olympus of Health")</institution></aff><aff><institution xml:lang="ru">Клиника «Город Здоровья»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2026-06-26" publication-format="electronic"><day>26</day><month>06</month><year>2026</year></pub-date><volume>19</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>76</fpage><lpage>82</lpage><history><date date-type="received" iso-8601-date="2025-03-20"><day>20</day><month>03</month><year>2025</year></date><date date-type="accepted" iso-8601-date="2026-06-25"><day>25</day><month>06</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Voronezh N.N. Burdenko State Medical University</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, ФГБОУ ВО ВГМУ им. Н.Н. Бурденко Минздрава России</copyright-statement><copyright-year>2026</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/" start_date="2029-07-01"/><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/1881">https://vestnik-surgery.com/journal/article/view/1881</self-uri><abstract xml:lang="en"><p><bold>Background.<italic> </italic></bold>Morbid obesity (MO) does not only increase the risk of developing malignant neoplasms (MN) of various localisations, including renal cell carcinoma (RCC), but also worsens the treatment outcomes and prognosis in patients with diagnosed cancer. Bariatric surgery, as the only proven effective option for significant and persistent reduction in body mass, has recently been used in cancer patients at various stages. However, the issues regarding the prognostically most promising and beneficial treatment staging from the patient’s perspectives, and the possibility of simultaneous interventions for MN and MO remain unsolved.</p> <p><bold>Aim.<italic> </italic><italic>Т</italic></bold>o analyse a series of cases of surgical treatment in patients with RCC and subsequent bariatric procedures for MO, and to report on the first known experience of simultaneous implementation of bariatric and oncological stages.</p> <p><bold>Materials and methods.<italic> </italic></bold>There were presented three clinical cases of bariatric interventions in patients with RCC: 1) kidney cancer diagnosed during preparation for bariatric surgery. The first stage was nephrectomy, the second was sleeve gastrectomy (SG); 2) SG for progressive obesity in 5 years after nephrectomy for RCC; 3) simultaneous surgical treatment involving partial nephrectomy and SG for RCC and MO. Surgical complications, oncologic and bariatric outcomes were assessed.</p> <p><bold>Results.<italic> </italic></bold>No treatment complications were observed during oncological and bariatric surgeries in any case. All patients demonstrated significant and persistent weight loss after bariatric surgery. The excess weight loss were 110.9% (after 62 months), 85.7% (after 23 months) and 71.0% (after 24 months) in cases 1, 2 and 3, respectively. In each case, follow-up imaging (SCT) revealed no tumor recurrence.</p> <p><bold>Conclusions.<italic> </italic></bold>Elimination of MO should be considered a crucial aspect in the treatment of patients with MN, including RCC. A personalised treatment strategy should be planned based on the individual patient’s features, prognosis and safety assessment. Simultaneous bariatric and oncological surgeries can be supportable both in terms of simultaneously addressing two interrelated conditions and in reducing the risk of malignant neoplasm progression or recurrence. The initial clinical outcomes indicate that this approach may be effective; however, such simultaneous interventions can only be performed in specialised medical institutions with the necessary level of the staff training, adequate equipment and experience.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Обоснование.</bold> Морбидное ожирение (МО) не только повышает риск развития злокачественных новообразований (ЗНО) различных локализаций, в том числе почечно-клеточного рака (ПКР), но и ухудшает результаты лечения и прогноз у пациентов с уже диагностированным раком. Бариатрическую хирургию, как единственно доказанный эффективный метод значительного и стойкого снижения массы тела, в последнее время стали использовать у онкобольных на различных этапах. Однако остается неразрешенным вопрос о прогностически наиболее удачной и выгодной для пациента этапности лечения, возможности симультанных вмешательств по поводу ЗНО и МО.</p> <p><bold>Цель.<italic> </italic></bold>Анализ серии случаев хирургического лечения пациентов с ЗНО почки и последующей бариатрической процедурой по поводу МО, а также первого известного опыта одномоментного выполнения бариатрического и онкологического этапов.</p> <p><bold>Методы.<italic> </italic></bold>Представлено 3 клинических случая проведения бариатрических вмешательств у пациентов с ПКР: 1) рак почки диагностирован при подготовке к бариатрической операции. Первым этапом выполнена нефрэктомия, вторым – продольная резекция желудка (ПРЖ); 2) ПРЖ по поводу прогрессирующего ожирения через 5 лет после нефрэктомии по поводу ПКР; 3) симультанное хирургическое лечение – резекция почки и ПРЖ по поводу ПКР и МО. Оценивались хирургические осложнения, онкологические и бариатрические результаты.</p> <p><bold>Результаты</bold>. Осложнений лечения не наблюдалось при проведении онкологических и бариатрических хирургических вмешательств ни в одном случае. Все пациенты продемонстрировали значительное стойкое снижение массы тела после бариатрических операций. Проценты потери избыточной массы тела составили 110,9% (через 62 месяца), 85,7% (через 23 месяца) и 71,0% (через 24 месяца) в 1, 2 и 3 случаях соответственно. В каждом случае контрольные исследования спиральной компьютерной томографии (СКТ) не выявили рецидивов опухолей.</p> <p><bold>Заключение.</bold> Устранение МО следует рассматривать как важный аспект в лечении пациентов с ЗНО, в том числе при ПКР. В зависимости от индивидуальных особенностей пациента, прогноза и оценки безопасности, необходимо персонифицировано планировать стратегию лечения. Одномоментное выполнение бариатрической и онкологической операций может быть оправдано как с точки зрения одновременного устранения двух взаимосвязанных заболеваний, так и в аспекте снижения рисков прогрессирования или рецидива ЗНО. Первые результаты показывают, что такая тактика может быть эффективной, однако проведение подобных симультанных вмешательств может быть реализовано только в специализированных медицинских центрах с необходимым уровнем подготовки, оснащения и опыта.</p></trans-abstract><kwd-group xml:lang="en"><kwd>bariatric surgery</kwd><kwd>clinical oncology</kwd><kwd>sleeve gastrectomy</kwd><kwd>kidney cancer</kwd><kwd>kidney resection</kwd><kwd>nephrectomy</kwd><kwd>simultaneous operations</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>бариатрическая хирургия</kwd><kwd>клиническая онкология</kwd><kwd>продольная резекция желудка</kwd><kwd>рак почки</kwd><kwd>резекция почки</kwd><kwd>нефрэктомия</kwd><kwd>симультанные операции</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Bluher M. Obesity: global epidemiology and pathogenesis. 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