<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">gnck</journal-id><journal-title-group><journal-title xml:lang="ru">Колопроктология</journal-title><trans-title-group xml:lang="en"><trans-title>Koloproktologia</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2073-7556</issn><issn pub-type="epub">2686-7303</issn><publisher><publisher-name>Russian Association of Coloproctology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33878/2073-7556-2023-22-4-10-23</article-id><article-id custom-type="elpub" pub-id-type="custom">gnck-1861</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Влияние паллиативной резекции толстой кишки на общую выживаемость при малосимптомной (бессимптомной) первичной опухоли и синхронных нерезектабельных метастазах колоректального рака: результаты сравнительного исследования</article-title><trans-title-group xml:lang="en"><trans-title>The impact of palliative primary tumor resection on overall survival in minimally symptomatic (asymptomatic) colorectal cancer and synchronous unresectable metastases vs chemotherapy only: a comparative study of outcomes</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7245-4042</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алимова</surname><given-names>Ю. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Alimova</surname><given-names>Iu. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алимова Юлия Васильевна — аспирант, младший научный сотрудник,</p><p>ул. Саляма Адиля, д. 2, г. Москва,123423</p></bio><bio xml:lang="en"><p>Iuliia V. Alimova — MD, </p><p>Salyama Adilya st., 2, Moscow, 123423</p></bio><email xlink:type="simple">polikarpova-e@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9294-5447</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ачкасов</surname><given-names>С. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Achkasov</surname><given-names>S. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ачкасов Сергей Иванович — доктор медицинских наук, профессор, член-корр. РАН, директор,</p><p>ул. Саляма Адиля, д. 2, г. Москва,123423</p></bio><bio xml:lang="en"><p>Sergey I. Achkasov — MD, </p><p>Salyama Adilya st., 2, Moscow, 123423</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/0000-0002-8480-9362</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шелыгин</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Shelygin</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шелыгин Юрий Анатольевич — доктор медицинских наук, профессор, академик РАН, научный руководитель, ул. Саляма Адиля, д. 2, г. Москва,123423;</p><p>заведующий кафедрой колопроктологии, ул. Баррикадная, д. 2/1, стр. 1, г. Москва, 125993</p></bio><bio xml:lang="en"><p>Yuri A. Shelygin — MD, Salyama Adilya st., 2, Moscow, 123423;</p><p>Barrikadnaya st., 2/1-1, Moscow, 125993</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5655-6567</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алексеев</surname><given-names>М. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Alekseev</surname><given-names>M. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексеев Михаил Владимирович — доктор медицинских наук, доцент кафедры колопроктологии, ул. Саляма Адиля, д. 2, г. Москва,123423;</p><p>заведующий отделением онкопроктологии, ул. Баррикадная, д. 2/1, стр. 1, г. Москва, 125993</p></bio><bio xml:lang="en"><p>Mikhail V. Alekseev — MD, Salyama Adilya st., 2, Moscow, 123423;</p><p>Barrikadnaya st., 2/1-1, Moscow, 125993</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0700-6504</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кашников</surname><given-names>В. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Kashnikov</surname><given-names>V. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кашников Владимир Николаевич — доктор медицинских наук, доцент, заместитель директора по инновационному развитию,</p><p>ул. Саляма Адиля, д. 2, г. Москва,123423</p></bio><bio xml:lang="en"><p>Vladimir N. Kashnikov — MD,</p><p>Salyama Adilya st., 2, Moscow, 123423</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/0000-0001-5615-7806</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Федянин</surname><given-names>М. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedyanin</surname><given-names>M. Yu.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Федянин Михаил Юрьевич — доктор медицинских наук, профессор, руководитель Службы химиотерапевтического лечения, поселение Сосенское, п. Коммунарка, ул. Сосенский стан, д. 8, г. Москва, 108814;</p><p>старший научный сотрудник отделения клинической фармакологии и химиотерапии НИИ клинической онкологии, Каширское ш., д. 24, г. Москва, 115522;</p><p>научный консультант, ул. Нижняя Первомайская, д. 70, г. Москва, 105203</p></bio><bio xml:lang="en"><p>Mikhail Yu. Fedyanin — MD, Sosenskiy stan st., 8, Moscow,108814;</p><p>Kashirskoje Shosse, 24, Moscow, 115522;</p><p>Nizhnyaya Pervomayskaya st., 70, Moscow, 105203</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9439-9873</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Данилов</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Danilov</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Данилов Михаил Александрович — кандидат медицинских наук, заведующий отделением колопроктологии,</p><p>ш. Энтузиастов, д. 86 стр. 6, г. Москва, 111123</p></bio><bio xml:lang="en"><p>Mikhail A. Danilov — MD, </p><p>Shosse Entuziastov, 86, Moscow, 111123</p></bio><xref ref-type="aff" rid="aff-4"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6963-2650</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рыбаков</surname><given-names>Е. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Rybakov</surname><given-names>E. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Рыбаков Евгений Геннадиевич — доктор медицинских наук, профессор РАН, руководитель отдела онкопроктологии,</p><p>ул. Саляма Адиля, д. 2, г. Москва,123423</p></bio><bio xml:lang="en"><p>Evgeny G. Rybakov — MD,</p><p>Salyama Adilya st., 2, Moscow, 123423</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБУ «НМИЦ колопроктологии имени А.Н. Рыжих» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ryzhikh National Medical Research Center of Coloproctology</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУ «НМИЦ колопроктологии имени А.Н. Рыжих» Минздрава России;&#13;
ФГБОУ ДПО РМАНПО Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ryzhikh National Medical Research Center of Coloproctology;&#13;
Russian Medical Academy of Continuous Professional Education of the Ministry of Healthcare of Russia</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ГБУЗ «ММКЦ «Коммунарка» Департамента здравоохранения города Москвы;&#13;
ФГБУ «НМИЦ онкологии им. Н.Н. Блохина» Минздрава России;&#13;
ФГБУ «ФГБУ «НМХЦ им. Н.И. Пирогова» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Multidisciplinary Clinical Center “Kommunarka” of Moscow City Health Department;&#13;
N.N. Blokhin National Medical Research Center of Oncology of the Ministry of Health of the Russia;&#13;
Pirogov National Medical and Surgical Center</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>ГБУЗ «МКНЦ имени А.С. Логинова ДЗМ» Департамента здравоохранения города Москвы</institution><country>Россия</country></aff><aff xml:lang="en"><institution>A.S. Loginov Moscow Clinical Scientific Center, Department of Health of Moscow</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>21</day><month>12</month><year>2023</year></pub-date><volume>22</volume><issue>4</issue><fpage>10</fpage><lpage>23</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Алимова Ю.В., Ачкасов С.И., Шелыгин Ю.А., Алексеев М.В., Кашников В.Н., Федянин М.Ю., Данилов М.А., Рыбаков Е.Г., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Алимова Ю.В., Ачкасов С.И., Шелыгин Ю.А., Алексеев М.В., Кашников В.Н., Федянин М.Ю., Данилов М.А., Рыбаков Е.Г.</copyright-holder><copyright-holder xml:lang="en">Alimova I.V., Achkasov S.I., Shelygin Y.A., Alekseev M.V., Kashnikov V.N., Fedyanin M.Y., Danilov M.A., Rybakov E.G.</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.ruproctology.com/jour/article/view/1861">https://www.ruproctology.com/jour/article/view/1861</self-uri><abstract><sec><title>Цель</title><p>Цель: оценить влияние паллиативной резекции толстой кишки на результаты лечения пациентов с малосимптомной первичной опухолью и синхронными нерезектабельными метастазами колоректального рака (КРР).</p></sec><sec><title>Пациенты и методы</title><p>Пациенты и методы: ретроспективно изучены результаты лечения пациентов с малосимптомной первичной опухолью и синхронными нерезектабельными метастазами КРР в период с 2016 по 2022 гг. Проведена сравнительная оценка результатов лечения двух групп пациентов: паллиативная резекция толстой кишки с последующей химиотерапией и самостоятельная химиотерапия. Для анализа выживаемости использовался метод Каплана–Майера, различия оценивались при помощи лог-рангового критерия и многофакторного регрессионного анализа Кокса. Для исключения систематической ошибки отбора был применен статистический метод псевдорандомизации (propensity score matching).</p></sec><sec><title>Результаты</title><p>Результаты: не было выявлено значительных различий между группами в 30-дневной летальности (р = 1,00) и частоте хирургических вмешательств на фоне осложнений первичного лечения (р = 1,00). Медиана выживаемости в группах паллиативной резекции и химиотерапии была сопоставима (р = 0,2) и составила 27,8 месяцев и 24 месяца, соответственно. После применения метода псевдорандомизации 3-летняя общая выживаемость была 42,1% в группе паллиативной резекции и 34% — в группе химиотерапии (р = 0,47). Медиана выживаемости составила 27,9 месяцев и 24,4 месяца, соответственно. Общая 3-летняя выживаемость для пациентов с IVB клинической стадией была статистически значимо выше в группе паллиативной резекции по сравнению с группой химиотерапии (37,8% против 4,8%; р = 0,02). Медиана выживаемости составила 36,1 и 17,2 месяцев, соответственно. Единственным значимым прогностическим фактором выживаемости в многофакторном анализе до и после сопоставления групп, было выполнение радикальной операции при переходе нерезeктабельных метастазов в резектабельные после начала первичного лечения (p &lt; 0,001).</p></sec><sec><title>Заключение</title><p>Заключение: паллиативная резекция при малосимптомном КРР и нерезектабельных метастазах сопровождается приемлемой частотой послеоперационных осложнений и послеоперационной летальностью, а также может улучшить общую выживаемость при IVB клинической стадии в сравнении с самостоятельной химиотерапией. Однако необходимы дальнейшие рандомизированные исследования.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim: to evaluate the impact of primary tumor resection (PTR) on treatment outcomes in patients with asymptomatic or minimally symptomatic colorectal cancer (CRC) and synchronous unresectable metastases.</p></sec><sec><title>Patients and Methods</title><p>Patients and Methods: treatment outcomes of patients with minimally symptomatic CRC and synchronous unresectable metastases were retrospectively assessed (2016–2022). Patients with PTR followed by chemotherapy were compared to patients receiving chemotherapy only. Survival was determined by the Kaplan-Meier method and differences were evaluated using the log-rank test and Cox proportional-hazards regression model. To reduce potential selection bias between two groups a propensity score matching (PSM) was performed.</p></sec><sec><title>Results</title><p>Results: no significant differences in 30-day mortality rate (р = 1,00) and the rate of surgical intervention due to complications of first treatment (р = 1,00) between the two groups. Before matching the median survivals were 27,8 and 24 months in the PTR and chemotherapy groups, respectively (р = 0,2). After PSM the overall survival rate at 3 years was 42,1% for the PTR group and 34% for the chemotherapy group (р = 0,47). The median survivals were 27,9 and 24,4 months, respectively. Three-year overall survival rate for patients with stage IVB was significantly higher in the PTR group than in the chemotherapy group (37,8% versus 4,8%; р = 0,02). The median survivals were 36,1 and 17,2 months, respectively. In multivariate analysis radical resection (R0) if unresectable metastases converted into resectable after initial treatment was the only significant prognostic factor for survival (p &lt; 0,001).</p></sec><sec><title>Conclusions</title><p>Conclusions: PTR in patients with asymptomatic or minimally symptomatic CRC and synchronous unresectable metastases is associated with acceptable postoperative morbidity and mortality rates and may improve overall survival for patients with stage IVB comparing to chemotherapy as a treatment of first line. However, randomized controlled trials are needed.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>колоректальный рак</kwd><kwd>паллиативная резекция</kwd><kwd>бессимптомная первичная опухоль</kwd><kwd>нерезектабельные метастазы</kwd><kwd>химиотерапия</kwd><kwd>общая выживаемость</kwd></kwd-group><kwd-group xml:lang="en"><kwd>colorectal cancer</kwd><kwd>palliative resection</kwd><kwd>asymptomatic primary tumor</kwd><kwd>unresectable metastases</kwd><kwd>chemotherapy</kwd><kwd>overall survival</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">Cook AD, Single R, McCahill LE. Surgical resection of primary tumors in patients who present with stage IV colorectal cancer: an analysis of surveillance, epidemiology, and end results data, 1988 to 2000. Ann Surg Oncol. 2005;12(8):637–45. doi: 10.1245/ASO.2005.06.012</mixed-citation><mixed-citation xml:lang="en">Cook AD, Single R, McCahill LE. Surgical resection of primary tumors in patients who present with stage IV colorectal cancer: an analysis of surveillance, epidemiology, and end results data, 1988 to 2000. Ann Surg Oncol. 2005;12(8):637–45. doi: 10.1245/ASO.2005.06.012</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Cronin KA, Lake AJ, Scott S, et al. Annual Report to the Nation on the Status of Cancer, part I: National cancer statistics. Cancer. 2018;124(13):2785–800. doi: 10.1002/cncr.31551</mixed-citation><mixed-citation xml:lang="en">Cronin KA, Lake AJ, Scott S, et al. Annual Report to the Nation on the Status of Cancer, part I: National cancer statistics. Cancer. 2018;124(13):2785–800. doi: 10.1002/cncr.31551</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Siegel R, Desantis C, Jemal A. Colorectal cancer statistics, 2014. CA Cancer J Clin. 2014;64(2):104–17. doi: 10.3322/caac.21220</mixed-citation><mixed-citation xml:lang="en">Siegel R, Desantis C, Jemal A. Colorectal cancer statistics, 2014. CA Cancer J Clin. 2014;64(2):104–17. doi: 10.3322/caac.21220</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Рубрикатор клинических рекомендаций Министерства здравоохранения Российской Федерации. Клинические рекомендации: злокачественное новообразование ободочной кишки. 2022. Доступно: https://cr.minzdrav.gov.ru/schema/396_3/</mixed-citation><mixed-citation xml:lang="en">Rubricator of сlinical guidelines of the Ministry of Healthcare of Russian Federation. Clinical guidelines: malignant neoplasm of colon. 2022. Available from: https://cr.minzdrav.gov.ru/schema/396_3/ (in Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Рубрикатор клинических рекомендаций Министерства здравоохранения Российской Федерации. Клинические рекомендации: злокачественное новообразование прямой кишки. 2022. Доступно: https://cr.minzdrav.gov.ru/schema/554_2/</mixed-citation><mixed-citation xml:lang="en">Rubricator of сlinical guidelines of the Ministry of Healthcare of Russian Federation. Clinical guidelines: malignant neoplasm of rectal. 2022. Available from: https://cr.minzdrav.gov.ru/schema/554_2 (in Russ.).</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">National Comprehensive Cancer Network (NCCN) Plymouth Meeting, PA: NCCN; Clinical practice guidelines in oncology (NCCN guidelines): colon cancer [Internet] c2023 [cited 2023 April 25]. Available from: https://www.nccn.org/professionals/physician_gls/pdf/colon.pdf</mixed-citation><mixed-citation xml:lang="en">National Comprehensive Cancer Network (NCCN) Plymouth Meeting, PA: NCCN; Clinical practice guidelines in oncology (NCCN guidelines): colon cancer [Internet] c2023 [cited 2023 April 25]. Available from: https://www.nccn.org/professionals/physician_gls/pdf/colon.pdf</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">National Comprehensive Cancer Network (NCCN) Plymouth Meeting, PA: NCCN; Clinical practice guidelines in oncology (NCCN guidelines): rectal cancer [Internet] c2023 [cited 2023 July 25]. Available from: https://www.nccn.org/professionals/physician_gls/pdf/rectal.pdf</mixed-citation><mixed-citation xml:lang="en">National Comprehensive Cancer Network (NCCN) Plymouth Meeting, PA: NCCN; Clinical practice guidelines in oncology (NCCN guidelines): rectal cancer [Internet] c2023 [cited 2023 July 25]. Available from: https://www.nccn.org/professionals/physician_gls/pdf/rectal.pdf</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Glynne-Jones R, Wyrwicz L, Tiret E, et al. Committee, Rectal cancer: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up. Ann Oncol. 2017;28(suppl 4):iv22–40. doi: 10.1093/annonc/mdx224</mixed-citation><mixed-citation xml:lang="en">Glynne-Jones R, Wyrwicz L, Tiret E, et al. Committee, Rectal cancer: ESMO Clinical Practice Guidelines for diagnosis, treatment and follow-up. Ann Oncol. 2017;28(suppl 4):iv22–40. doi: 10.1093/annonc/mdx224</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Van Cutsem E, Cervantes A, Adam R, et al. ESMO consensus guidelines for the management of patients with metastatic colorectal cancer. Ann Oncol. 2016;27(8):1386–1422. doi: 10.1093/annonc/mdw235</mixed-citation><mixed-citation xml:lang="en">Van Cutsem E, Cervantes A, Adam R, et al. ESMO consensus guidelines for the management of patients with metastatic colorectal cancer. Ann Oncol. 2016;27(8):1386–1422. doi: 10.1093/annonc/mdw235</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Ruo L, Gougoutas C, Paty PB, et al. Elective bowel resection for incurable stage IV colorectal cancer: prognostic variables for asymptomatic patients. Journal of the American College of Surgeons. 2003;196(5):722–8. doi: 10.1016/S1072-7515(03)00136-4</mixed-citation><mixed-citation xml:lang="en">Ruo L, Gougoutas C, Paty PB, et al. Elective bowel resection for incurable stage IV colorectal cancer: prognostic variables for asymptomatic patients. Journal of the American College of Surgeons. 2003;196(5):722–8. doi: 10.1016/S1072-7515(03)00136-4</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Galizia G, Lieto E, Orditura M, et al. First-line chemotherapy vs bowel tumor resection plus chemotherapy for patients with unresectable synchronous colorectal hepatic metastases. Archives of Surgery. 2008;143:352–8. doi: 10.1001/archsurg.143.4.352</mixed-citation><mixed-citation xml:lang="en">Galizia G, Lieto E, Orditura M, et al. First-line chemotherapy vs bowel tumor resection plus chemotherapy for patients with unresectable synchronous colorectal hepatic metastases. Archives of Surgery. 2008;143:352–8. doi: 10.1001/archsurg.143.4.352</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Ahmed S, Fields A, Pahwa P, et al. Surgical Resection of Primary Tumor in Asymptomatic or Minimally Symptomatic Patients With Stage IV Colorectal Cancer: A Canadian Province Experience. Clin Colorectal Cancer. 2015;14(4):e41–7. doi: 10.1016/j.clcc.2015.05.008</mixed-citation><mixed-citation xml:lang="en">Ahmed S, Fields A, Pahwa P, et al. Surgical Resection of Primary Tumor in Asymptomatic or Minimally Symptomatic Patients With Stage IV Colorectal Cancer: A Canadian Province Experience. Clin Colorectal Cancer. 2015;14(4):e41–7. doi: 10.1016/j.clcc.2015.05.008</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Wang Z, Liang L, Yu Y, et al. Primary Tumour Resection Could Improve the Survival of Unresectable Metastatic Colorectal Cancer Patients Receiving Bevacizumab-Containing Chemotherapy. Cell Physiol Biochem. 2016;39(3):1239–46. doi: 10.1159/000447829</mixed-citation><mixed-citation xml:lang="en">Wang Z, Liang L, Yu Y, et al. Primary Tumour Resection Could Improve the Survival of Unresectable Metastatic Colorectal Cancer Patients Receiving Bevacizumab-Containing Chemotherapy. Cell Physiol Biochem. 2016;39(3):1239–46. doi: 10.1159/000447829</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Urvay S, Eren T, Civelek B, et al. The role of primary tumor resection in patients with stage IV colorectal cancer with unresectable metastases. J BUON. 2020;25(2):939–44</mixed-citation><mixed-citation xml:lang="en">Urvay S, Eren T, Civelek B, et al. The role of primary tumor resection in patients with stage IV colorectal cancer with unresectable metastases. J BUON. 2020;25(2):939–44</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Leone N, Arolfo S, Spadi R, et al. Colorectal cancer with synchronous unresectable liver metastases: resecting the primary tumor improves survival. Int J Colorectal Dis. 2023;38(1):169. DOI::10.1007/s00384-023-04469-8</mixed-citation><mixed-citation xml:lang="en">Leone N, Arolfo S, Spadi R, et al. Colorectal cancer with synchronous unresectable liver metastases: resecting the primary tumor improves survival. Int J Colorectal Dis. 2023;38(1):169. DOI::10.1007/s00384-023-04469-8</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Scoggins CR, Meszoely IM, Blanke CD, et al. Non operative management of primary colorectal cancer in patients with stage IV disease. Annals of Surgical Oncology. 1999;6:651–7. doi: 10.1007/s10434-999-0651-x</mixed-citation><mixed-citation xml:lang="en">Scoggins CR, Meszoely IM, Blanke CD, et al. Non operative management of primary colorectal cancer in patients with stage IV disease. Annals of Surgical Oncology. 1999;6:651–7. doi: 10.1007/s10434-999-0651-x</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Michel P, Roque I, Di Fiore F, et al. Colorectal cancer with nonresectable synchronous metastases: should the primary tumor be resected? Gastroentérologie Clinique et Biologique. 2004;28:434–7. doi: 10.1016/s0399-8320(04)94952-4</mixed-citation><mixed-citation xml:lang="en">Michel P, Roque I, Di Fiore F, et al. Colorectal cancer with nonresectable synchronous metastases: should the primary tumor be resected? Gastroentérologie Clinique et Biologique. 2004;28:434–7. doi: 10.1016/s0399-8320(04)94952-4</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Benoist S, Pautrat K, Mitry E, et al. Treatment strategy for patients with colorectal cancer and synchronous resectable liver metastases. The British Journal of Surgery. 2005;92:1155–60. doi: 10.1002/bjs.5060</mixed-citation><mixed-citation xml:lang="en">Benoist S, Pautrat K, Mitry E, et al. Treatment strategy for patients with colorectal cancer and synchronous resectable liver metastases. The British Journal of Surgery. 2005;92:1155–60. doi: 10.1002/bjs.5060</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Seo GJ, Park JW, Yoo SB, et al. Intestinal complications after palliative treatment forasymptomatic patientswith unresectable stage IV colorectal cancer. Journal of Surgical Oncology. 2010;102:94–9. doi: 10.1002/jso.21577</mixed-citation><mixed-citation xml:lang="en">Seo GJ, Park JW, Yoo SB, et al. Intestinal complications after palliative treatment forasymptomatic patientswith unresectable stage IV colorectal cancer. Journal of Surgical Oncology. 2010;102:94–9. doi: 10.1002/jso.21577</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Cetin B, Kaplan MA, Berk V, et al. Bevacizumab-containing chemotherapy is safe in patients with unresectable metastatic colorectal cancer and a synchronous asymptomatic primary tumor. Jpn J Clin Oncol. 2013 Jan;43(1):28–32. doi: 10.1093/jjco/hys175</mixed-citation><mixed-citation xml:lang="en">Cetin B, Kaplan MA, Berk V, et al. Bevacizumab-containing chemotherapy is safe in patients with unresectable metastatic colorectal cancer and a synchronous asymptomatic primary tumor. Jpn J Clin Oncol. 2013 Jan;43(1):28–32. doi: 10.1093/jjco/hys175</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Boselli C, Renzi C, Gemini A, et al. Surgery in asymptomatic patients with colorectal cancer and unresectable liver metastases: the authors’ experience. Onco Targets Ther. 2013;6:267–72. doi: 10.2147/OTT.S39448</mixed-citation><mixed-citation xml:lang="en">Boselli C, Renzi C, Gemini A, et al. Surgery in asymptomatic patients with colorectal cancer and unresectable liver metastases: the authors’ experience. Onco Targets Ther. 2013;6:267–72. doi: 10.2147/OTT.S39448</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Yun JA, Huh JW, Park YA, et al. The role of palliative resection for asymptomatic primary tumor in patients with unresectable stage IV colorectal cancer. Dis Colon Rectum. 2014;57(9):1049–58. doi: 10.1097/DCR.0000000000000193</mixed-citation><mixed-citation xml:lang="en">Yun JA, Huh JW, Park YA, et al. The role of palliative resection for asymptomatic primary tumor in patients with unresectable stage IV colorectal cancer. Dis Colon Rectum. 2014;57(9):1049–58. doi: 10.1097/DCR.0000000000000193</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Matsumoto T, Hasegawa S, Matsumoto S, et al. Overcoming the challenges of primary tumor management in patients with metastatic colorectal cancer unresectable for cure and an asymptomatic primary tumor. Dis Colon Rectum. 2014;57(6):679–86. doi: 10.1097/DCR.0000000000000025</mixed-citation><mixed-citation xml:lang="en">Matsumoto T, Hasegawa S, Matsumoto S, et al. Overcoming the challenges of primary tumor management in patients with metastatic colorectal cancer unresectable for cure and an asymptomatic primary tumor. Dis Colon Rectum. 2014;57(6):679–86. doi: 10.1097/DCR.0000000000000025</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Watanabe A, Yamazaki K, Kinugasa Y, et al. Influence of primary tumor resection on survival in asymptomatic patients with incurable stage IV colorectal cancer. Int J Clin Oncol. 2014;19(6):1037–42. doi: 10.1007/s10147-014-0662-x</mixed-citation><mixed-citation xml:lang="en">Watanabe A, Yamazaki K, Kinugasa Y, et al. Influence of primary tumor resection on survival in asymptomatic patients with incurable stage IV colorectal cancer. Int J Clin Oncol. 2014;19(6):1037–42. doi: 10.1007/s10147-014-0662-x</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Niitsu H, Hinoi T, Shimomura M, et al. Up-front systemic chemotherapy is a feasible option compared to primary tumor resection followed by chemotherapy for colorectal cancer with unresectable synchronous metastases. World J Surg Oncol. 2015;13:162. doi: 10.1186/s12957-015-0570-1</mixed-citation><mixed-citation xml:lang="en">Niitsu H, Hinoi T, Shimomura M, et al. Up-front systemic chemotherapy is a feasible option compared to primary tumor resection followed by chemotherapy for colorectal cancer with unresectable synchronous metastases. World J Surg Oncol. 2015;13:162. doi: 10.1186/s12957-015-0570-1</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Doah KY, Shin US, Jeon BH, et al. The impact of primary tumor resection on survival in asymptomatic colorectal cancer patients with unresectable metastases. Annals of Coloproctology. 2021;37(2):94–100. doi: 10.3393/ac.2020.09.15.1</mixed-citation><mixed-citation xml:lang="en">Doah KY, Shin US, Jeon BH, et al. The impact of primary tumor resection on survival in asymptomatic colorectal cancer patients with unresectable metastases. Annals of Coloproctology. 2021;37(2):94–100. doi: 10.3393/ac.2020.09.15.1</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Park EJ, Baek JH, Choi GS, et al. The Role of Primary Tumor Resection in Colorectal Cancer Patients with Asymptomatic, Synchronous, Unresectable Metastasis: A Multicenter Randomized Controlled Trial. Cancers. 2020;12(8):2306. doi: 10.3390/cancers12082306</mixed-citation><mixed-citation xml:lang="en">Park EJ, Baek JH, Choi GS, et al. The Role of Primary Tumor Resection in Colorectal Cancer Patients with Asymptomatic, Synchronous, Unresectable Metastasis: A Multicenter Randomized Controlled Trial. Cancers. 2020;12(8):2306. doi: 10.3390/cancers12082306</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Kanemitsu Y, Shitara K, Mizusawa J, et al. Primary Tumor Resection Plus Chemotherapy Versus Chemotherapy Alone for Colorectal Cancer Patients With Asymptomatic, Synchronous Unresectable Metastases (JCOG1007; iPACS): A Randomized Clinical Trial. Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology. 2021;39(10):1098–1107. doi: 10.1200/JCO.20.02447</mixed-citation><mixed-citation xml:lang="en">Kanemitsu Y, Shitara K, Mizusawa J, et al. Primary Tumor Resection Plus Chemotherapy Versus Chemotherapy Alone for Colorectal Cancer Patients With Asymptomatic, Synchronous Unresectable Metastases (JCOG1007; iPACS): A Randomized Clinical Trial. Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology. 2021;39(10):1098–1107. doi: 10.1200/JCO.20.02447</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Rahbari NN, Lordick F, Fink C, et al. Resection of the primary tumour versus no resection prior to systemic therapy in patients with colon cancer and synchronous unresectable metastases (UICC stage IV): SYNCHRONOUS — a randomised con- trolled multicentre trial (ISRCTN30964555). BMC Cancer. 2012;12:142. doi: 10.1186/1471-2407-12-142</mixed-citation><mixed-citation xml:lang="en">Rahbari NN, Lordick F, Fink C, et al. Resection of the primary tumour versus no resection prior to systemic therapy in patients with colon cancer and synchronous unresectable metastases (UICC stage IV): SYNCHRONOUS — a randomised con- trolled multicentre trial (ISRCTN30964555). BMC Cancer. 2012;12:142. doi: 10.1186/1471-2407-12-142</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru">’t Lam-Boer J, Mol L, Verhoef C, et al. The CAIRO4 Study: The Role of Surgery of the Primary Tumour with Few or Absent Symptoms in Patients with Synchronous Unresectable Metastases of Colorectal Cancer—A Randomized Phase III Study of the Dutch Colorectal Cancer Group (DCCG). BMC Cancer. 2014;14:741. doi: 10.1186/1471-2407-14-741</mixed-citation><mixed-citation xml:lang="en">’t Lam-Boer J, Mol L, Verhoef C, et al. The CAIRO4 Study: The Role of Surgery of the Primary Tumour with Few or Absent Symptoms in Patients with Synchronous Unresectable Metastases of Colorectal Cancer—A Randomized Phase III Study of the Dutch Colorectal Cancer Group (DCCG). BMC Cancer. 2014;14:741. doi: 10.1186/1471-2407-14-741</mixed-citation></citation-alternatives></ref><ref id="cit31"><label>31</label><citation-alternatives><mixed-citation xml:lang="ru">Biondo S, Frago R, Kreisler E, et al. Impact of resection versus no resection of the primary tumor on survival in patients with colorectal cancer and synchronous unresectable metastases: Protocol for a randomized multicenter study (CR4). Int J Color Dis. 2017;32:1085–90. doi: 10.1007/s00384-017-2827-3</mixed-citation><mixed-citation xml:lang="en">Biondo S, Frago R, Kreisler E, et al. Impact of resection versus no resection of the primary tumor on survival in patients with colorectal cancer and synchronous unresectable metastases: Protocol for a randomized multicenter study (CR4). Int J Color Dis. 2017;32:1085–90. doi: 10.1007/s00384-017-2827-3</mixed-citation></citation-alternatives></ref><ref id="cit32"><label>32</label><citation-alternatives><mixed-citation xml:lang="ru">Mehdi K. Colectomy in Patients With Asymptomatic and Unresectable Stage IV Colon Cancer (CLIMAT) in 2014. https://clinicaltrials.gov/ct2/show/NCT02363049</mixed-citation><mixed-citation xml:lang="en">Mehdi K. Colectomy in Patients With Asymptomatic and Unresectable Stage IV Colon Cancer (CLIMAT) in 2014. https://clinicaltrials.gov/ct2/show/NCT02363049</mixed-citation></citation-alternatives></ref><ref id="cit33"><label>33</label><citation-alternatives><mixed-citation xml:lang="ru">Kim CW, Baek JH, Choi GS, et al. The role of primary tumor resection in colorectal cancer patients with asymptomatic, synchronous unresectable metastasis: Study protocol for a randomized controlled trial. Trials. 2016;17:34. doi: 10.1186/s13063-016-1164-0</mixed-citation><mixed-citation xml:lang="en">Kim CW, Baek JH, Choi GS, et al. The role of primary tumor resection in colorectal cancer patients with asymptomatic, synchronous unresectable metastasis: Study protocol for a randomized controlled trial. Trials. 2016;17:34. doi: 10.1186/s13063-016-1164-0</mixed-citation></citation-alternatives></ref><ref id="cit34"><label>34</label><citation-alternatives><mixed-citation xml:lang="ru">Chen G. Palliative resection of asymptomatic primary tumor following effective induction chemotherapy in colorectal cancer patients with unresectable distant metastasis: a multi-center. In: Prospective, Randomized Controlled Study. 2014. https://clinicaltrials.gov/ct2/show/study/NCT02149784</mixed-citation><mixed-citation xml:lang="en">Chen G. Palliative resection of asymptomatic primary tumor following effective induction chemotherapy in colorectal cancer patients with unresectable distant metastasis: a multi-center. In: Prospective, Randomized Controlled Study. 2014. https://clinicaltrials.gov/ct2/show/study/NCT02149784</mixed-citation></citation-alternatives></ref><ref id="cit35"><label>35</label><citation-alternatives><mixed-citation xml:lang="ru">Moritani K, Kanemitsu Y, Shida D, et al. A randomized controlled trial comparing primary tumour resection plus chemotherapy with chemotherapy alone in incurable stage IV colorectal cancer: JCOG1007 (iPACS study). Jpn J Clin Oncol. 2020;50(1):89–93. doi: 10.1093/jjco/hyz173</mixed-citation><mixed-citation xml:lang="en">Moritani K, Kanemitsu Y, Shida D, et al. A randomized controlled trial comparing primary tumour resection plus chemotherapy with chemotherapy alone in incurable stage IV colorectal cancer: JCOG1007 (iPACS study). Jpn J Clin Oncol. 2020;50(1):89–93. doi: 10.1093/jjco/hyz173</mixed-citation></citation-alternatives></ref><ref id="cit36"><label>36</label><citation-alternatives><mixed-citation xml:lang="ru">Rahbari NN, Biondo S, Feißt M, et al. Randomized Clinical Trial on Resection of the Primary Tumor versus No Resection Prior to Systemic Therapy in Patients with Colon Cancer and Synchronous Unresectable Metastases. J Clin Oncol. 2022;40:LBA3507. doi: 10.1200/ JCO.2022.40.17_suppl.LBA3507</mixed-citation><mixed-citation xml:lang="en">Rahbari NN, Biondo S, Feißt M, et al. Randomized Clinical Trial on Resection of the Primary Tumor versus No Resection Prior to Systemic Therapy in Patients with Colon Cancer and Synchronous Unresectable Metastases. J Clin Oncol. 2022;40:LBA3507. doi: 10.1200/ JCO.2022.40.17_suppl.LBA3507</mixed-citation></citation-alternatives></ref><ref id="cit37"><label>37</label><citation-alternatives><mixed-citation xml:lang="ru">Clancy C, Burke JP, Barry M, et al. A meta-analysis to determine the effect of primary tumor resection for stage IV colorectal cancer with unresectable metastases on patient survival. Ann Surg Oncol. 2014;21(12):3900–8. doi: 10.1245/s10434-014-3805-4</mixed-citation><mixed-citation xml:lang="en">Clancy C, Burke JP, Barry M, et al. A meta-analysis to determine the effect of primary tumor resection for stage IV colorectal cancer with unresectable metastases on patient survival. Ann Surg Oncol. 2014;21(12):3900–8. doi: 10.1245/s10434-014-3805-4</mixed-citation></citation-alternatives></ref><ref id="cit38"><label>38</label><citation-alternatives><mixed-citation xml:lang="ru">Lee KC, Ou YC, Hu WH, et al. Meta-analysis of outcomes of patients with stage IV colorectal cancer managed with chemotherapy/ radiochemotherapy with and without primary tumor resection. Onco Targets Ther. 2016;9:7059–69. doi: 10.2147/OTT.S112965</mixed-citation><mixed-citation xml:lang="en">Lee KC, Ou YC, Hu WH, et al. Meta-analysis of outcomes of patients with stage IV colorectal cancer managed with chemotherapy/ radiochemotherapy with and without primary tumor resection. Onco Targets Ther. 2016;9:7059–69. doi: 10.2147/OTT.S112965</mixed-citation></citation-alternatives></ref><ref id="cit39"><label>39</label><citation-alternatives><mixed-citation xml:lang="ru">Ha GW, Kim JH, Lee MR. Meta-analysis of oncologic effect of primary tumor resection in patients with unresectable stage IV colorectal cancer in the era of modern systemic chemotherapy. Ann Surg Treat Res. 2018;95(2):64–72. doi: 10.4174/astr.2018.95.2.64</mixed-citation><mixed-citation xml:lang="en">Ha GW, Kim JH, Lee MR. Meta-analysis of oncologic effect of primary tumor resection in patients with unresectable stage IV colorectal cancer in the era of modern systemic chemotherapy. Ann Surg Treat Res. 2018;95(2):64–72. doi: 10.4174/astr.2018.95.2.64</mixed-citation></citation-alternatives></ref><ref id="cit40"><label>40</label><citation-alternatives><mixed-citation xml:lang="ru">Simillis C, Kalakouti E, Afxentiou T, et al. Primary Tumor Resection in Patients with Incurable Localized or Metastatic Colorectal Cancer: A Systematic Review and Meta-analysis. World J Surg. 2019;43(7):1829–40. doi: 10.1007/s00268-019-04984-2</mixed-citation><mixed-citation xml:lang="en">Simillis C, Kalakouti E, Afxentiou T, et al. Primary Tumor Resection in Patients with Incurable Localized or Metastatic Colorectal Cancer: A Systematic Review and Meta-analysis. World J Surg. 2019;43(7):1829–40. doi: 10.1007/s00268-019-04984-2</mixed-citation></citation-alternatives></ref><ref id="cit41"><label>41</label><citation-alternatives><mixed-citation xml:lang="ru">Cirocchi R, Trastulli S, Abraha I, et al. Non-resection versus resection for an asymptomatic primary tumour in patients with unresectable stage IV colorectal cancer. Cochrane Database Syst Rev. 2012;(8):CD008997. doi: 10.1002/14651858.CD008997.pub2</mixed-citation><mixed-citation xml:lang="en">Cirocchi R, Trastulli S, Abraha I, et al. Non-resection versus resection for an asymptomatic primary tumour in patients with unresectable stage IV colorectal cancer. Cochrane Database Syst Rev. 2012;(8):CD008997. doi: 10.1002/14651858.CD008997.pub2</mixed-citation></citation-alternatives></ref><ref id="cit42"><label>42</label><citation-alternatives><mixed-citation xml:lang="ru">Shu Y, Xu L, Yang W, et al. Asymptomatic Primary Tumor Resection in Metastatic Colorectal Cancer: A Systematic Review and Meta-Analysis. Front Oncol. 2022;(12):836404. doi: 10.3389/fonc.2022.836404</mixed-citation><mixed-citation xml:lang="en">Shu Y, Xu L, Yang W, et al. Asymptomatic Primary Tumor Resection in Metastatic Colorectal Cancer: A Systematic Review and Meta-Analysis. Front Oncol. 2022;(12):836404. doi: 10.3389/fonc.2022.836404</mixed-citation></citation-alternatives></ref><ref id="cit43"><label>43</label><citation-alternatives><mixed-citation xml:lang="ru">Алимова Ю.В., Шелыгин Ю.А., Рыбаков Е.Г., и соавт. Паллиативные резекции толстой кишки при малосимптомной (бессимптомной) первичной опухоли и синхронных нерезектабельных метастазах колоректального рака в сравнении с системной химиотерапией (метаанализ). Колопроктология. 2023;2(22):126– 140. doi: 10.33878/2073-7556-2023-22-2-126-140/</mixed-citation><mixed-citation xml:lang="en">Alimova I.V., Shelygin Y.A., Rybakov E.G., et al. Palliative primary tumor resection in minimally symptomatic (asymptomatic) patients with colorectal cancer and synchronous unresectable metastases versus chemotherapy alone: a metaanalysis. Koloproktologia. 2023;22(2):126–140. (in Russ.). doi: 10.33878/2073-7556-2023-22-2-126-140</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
