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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Medical Radiology and radiation safety</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Medical Radiology and radiation safety</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Медицинская радиология и радиационная безопасность</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">1024-6177</issn>
   <issn publication-format="online">2618-9615</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">37106</article-id>
   <article-id pub-id-type="doi">10.12737/1024-6177-2020-65-2-34-43</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Лучевая терапия</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Radiation therapy</subject>
    </subj-group>
    <subj-group>
     <subject>Лучевая терапия</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">Immediate Results of a Prolonged Course of Neoadjuvant Chemoradiotherapy for Patients with Locally Advanced Rectal Cancer: a Comparison of Classical and Hypofractional Regimes</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Непосредственные результаты пролонгированного курса неоадъювантной химиолучевой терапии больных местнораспространенным раком прямой кишки: сравнение классического и гипофракционного режимов</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Абдужаппаров</surname>
       <given-names>А. С.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Abdujapparov</surname>
       <given-names>A. S.</given-names>
      </name>
     </name-alternatives>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Ткачев</surname>
       <given-names>Сергей Иванович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Tkachev</surname>
       <given-names>Sergey Ivanovich</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>доктор медицинских наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of medical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Алиев</surname>
       <given-names>В. А.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Aliev</surname>
       <given-names>V. A.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>доктор медицинских наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of medical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Романов</surname>
       <given-names>Д. С.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Romanov</surname>
       <given-names>D. S.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат медицинских наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of medical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Назаренко</surname>
       <given-names>А. В.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Nazarenko</surname>
       <given-names>A. V.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат медицинских наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of medical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-5"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Барсуков</surname>
       <given-names>Ю. А.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Barsukov</surname>
       <given-names>Yu. A.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>доктор медицинских наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>doctor of medical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-6"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Борисова</surname>
       <given-names>Т. Н.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Borisova</surname>
       <given-names>T. N.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат медицинских наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of medical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-7"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Глебовская</surname>
       <given-names>В. В.</given-names>
      </name>
      <name xml:lang="en">
       <surname>Glebovskaya</surname>
       <given-names>V. V.</given-names>
      </name>
     </name-alternatives>
     <bio xml:lang="ru">
      <p>кандидат медицинских наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of medical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-8"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина Минздрава России</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.N. Blokhin National Medical Research Center of Oncology</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина Минздрава России</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.N. Blokhin National Medical Research Center of Oncology</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина Минздрава России</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.N. Blokhin National Medical Research Center of Oncology</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина Минздрава России</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.N. Blokhin National Medical Research Center of Oncology</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина Минздрава России</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.N. Blokhin National Medical Research Center of Oncology</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-6">
    <aff>
     <institution xml:lang="ru">Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина Минздрава России</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.N. Blokhin National Medical Research Center of Oncology</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-7">
    <aff>
     <institution xml:lang="ru">Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина Минздрава России</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.N. Blokhin National Medical Research Center of Oncology</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-8">
    <aff>
     <institution xml:lang="ru">Национальный медицинский исследовательский центр онкологии им. Н.Н. Блохина Минздрава России</institution>
     <city>Москва</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">N.N. Blokhin National Medical Research Center of Oncology</institution>
     <city>Moscow</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <volume>65</volume>
   <issue>2</issue>
   <fpage>34</fpage>
   <lpage>43</lpage>
   <self-uri xlink:href="https://zh-szf.ru/en/nauka/article/37106/view">https://zh-szf.ru/en/nauka/article/37106/view</self-uri>
   <abstract xml:lang="ru">
    <p>Цель: Сравнение эффективности гипофракционного и классического режимов лучевой терапии в неоадъювантном пролонгированном курсе химиолучевой терапии (ХЛТ) больных местнораспространенным раком прямой кишки (МРРПК).&#13;
Материал и методы: Данная работа основана на ретроспективном анализе базы данных больных МРРПК, которым с 2013 по 2017 гг. был проведён пролонгированный курс неоадъювантной ХЛТ с последующим оперативным вмешательством. Больные были разделены на две группы: первая (основная) группа, 71 больной МРРПК, которым в рамках неоадъювантного лечения был осуществлён курс ХЛТ в режиме гипофракционирования (РОД 4 Гр, 3 фракции в неделю, СОД 32 Гр на регионарные лимфатические узлы таза и до СОД 40 Гр на первичную опухоль) в комбинации с химиотерапией капецитабином 1650 мг/м2 в два приёма ежедневно в будние дни. Во вторую группу (группа контроля) было включено 79 больных МРРПК, которым был осуществлён курс ХЛТ в режиме классического фракционирования (РОД 2 Гр, 5 фракций в неделю, СОД 44 Гр на регионарные лимфатические узлы таза и до СОД 50–58 Гр на первичную опухоль) в комбинации с химиотерапией капецитабином 1650 мг/м2 в два приёма в дни проведения лучевой терапии.&#13;
Результаты: Средняя продолжительность пролонгированного курса ХЛТ в основной группе составила 22,6 календарных дней, в группе контроля — 38,8, p = 0,0001. Лечебный патоморфоз III степени в основной группе был зафиксирован в 23 % случаев, а IV степени — в 18 %, в группе контроля эти показатели составили 19 % и 15 % соответственно, p = 0,4. Понижение стадии опухолевого процесса было зафиксировано у 50 (70,4 %) пациентов в основной группе и у 47 (59,5 %) пациентов в группе контроля, p = 0,16. В частоте развития и в степени тяжести случаев гематологической и местной токсичности статистически значимых различий не наблюдалось.&#13;
Заключение: Результаты нашего исследования подтверждают, что использование пролонгированного курса неоадъювантной химиолучевой терапии в режиме гипофракционирования не ухудшает онкологические результаты, не увеличивает частоту и степень тяжести ранних и поздних лучевых повреждений, но при этом сокращает продолжительность курса лечения на две недели. Режим гипофракционирования может рассматриваться как альтернативный и не уступающий классическому режиму в неоадъювантном курсе ХЛТ больных МРРПК.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>Purpose: To compare the effectiveness of the hypofractional and classical modes of radiation therapy in a neoadjuvant prolonged course of chemoradiotherapy for patients with locally advanced rectal cancer (LARC).&#13;
Material and methods: This work is based on a retrospective analysis of the database of patients with LARC, who from 2013 to 2017 underwent a prolonged course of neoadjuvant chemoradiotherapy with subsequent surgical intervention. Patients were divided into two groups: the first (main) group, 71 patients with LARC, who, as part of the neoadjuvant treatment, underwent a course of chemoradiotherapy (CRT) in the hypofractionation mode (4 Gy, 3 fractions per week, 32 Gy to regional lymph nodes pelvis and up to 40 Gy to the primary tumor) in combination with chemotherapy with capecitabine 1650 mg/m2 in two doses daily on weekdays. The second group (control group) included 79 patients with LARC, who underwent CRT in the classical fractionation regimen (2 Gy, 5 fractions per week, 44 Gy to regional pelvic lymph nodes and up to 50–58 Gy to the primary tumor) in combination with capecitabine chemotherapy 1650 mg/m2 in two doses on the days of radiation therapy.&#13;
Results: The average duration of a prolonged course of CRT in the main group was 22.56 (95 % CI from 21.94 to 23.18) calendar days, in the control group — 38.84 (95 % CI from 38.12 to 39.54), p = 0.0001. Pathological response of the III degree in the main group was recorded in 23 % of cases, and of the IV degree in 18 %, in the control group these indicators were 19 % and 15 %, respectively, p = 0.4. A decrease in the stage of the tumor process was recorded in 50 (70.4 %) cases in the main group and in 47 (59.5 %) cases in the control group, p = 0.16. No statistically significant differences were observed in the incidence and severity of cases of hematological and local toxicity.&#13;
Conclusion: The results of our study confirm that the use of a prolonged course of neoadjuvant chemoradiotherapy in hypofractionation mode does not worsen oncological results, does not increase the frequency and severity of early and late radiation injuries, but at the same time reduces the duration of the course of treatment by two weeks. The hypofractionation regimen can be considered as an alternative and not inferior to the classical regimen in the neoadjuvant course of CRT of patients with LARC.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>неоадъювантная химиолучевая терапия</kwd>
    <kwd>местнораспространенный рак прямой кишки</kwd>
    <kwd>гипофракционный режим</kwd>
    <kwd>пролонгированный курс</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>neoadjuvant chemoradiotherapy</kwd>
    <kwd>locally advanced rectal cancer</kwd>
    <kwd>hypofractional regimen</kwd>
    <kwd>prolonged course</kwd>
   </kwd-group>
  </article-meta>
 </front>
 <body>
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