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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="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Oncohematology</journal-id><journal-title-group><journal-title xml:lang="en">Oncohematology</journal-title><trans-title-group xml:lang="ru"><trans-title>Онкогематология</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1818-8346</issn><issn publication-format="electronic">2413-4023</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">596</article-id><article-id pub-id-type="doi">10.17650/1818-8346-2022-17-4-126-137</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>NEW DIRECTIONS, DIAGNOSTIC OPPORTUNITIES, AND TREATMENT ADVANCES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>НОВЫЕ НАПРАВЛЕНИЯ, ВОЗМОЖНОСТИ ДИАГНОСТИКИ И УСПЕХИ ЛЕЧЕНИЯ</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">First experience of total body irradiation in conditioning regimes for allogenic hematopoietic stem cells transplantation in children with acute lymphoblastic leukemia in Saint Petersburg</article-title><trans-title-group xml:lang="ru"><trans-title>Первый опыт применения тотального облучения тела в режимах кондиционирования при аллогенной трансплантации гемопоэтических стволовых клеток у детей с острым лимфобластным лейкозом в Санкт-Петербурге</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2003-0982</contrib-id><name-alternatives><name xml:lang="en"><surname>Dinikina</surname><given-names>Yu. V.</given-names></name><name xml:lang="ru"><surname>Диникина</surname><given-names>Ю. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>8 Akkuratova St., Saint Petersburg 197341</p></bio><bio xml:lang="ru"><p>197341 Санкт-Петербург, ул. Аккуратова, 8</p></bio><email>dinikina_yuv@almazovcentre.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5240-7203</contrib-id><name-alternatives><name xml:lang="en"><surname>Mikhailov</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Михайлов</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Build. 3a, 2 Esenina St., Saint Petersburg 194354</p><p>41 Kirochnaya St., Saint Petersburg 191015</p></bio><bio xml:lang="ru"><p>194354 Санкт-Петербург, ул. Есенина, 2, корп. 3а</p><p>191015 Санкт-Петербург, ул. Кирочная, 41</p></bio><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5577-8950</contrib-id><name-alternatives><name xml:lang="en"><surname>Rusina</surname><given-names>M. A.</given-names></name><name xml:lang="ru"><surname>Русина</surname><given-names>М. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>8 Akkuratova St., Saint Petersburg 197341</p></bio><bio xml:lang="ru"><p>197341 Санкт-Петербург, ул. Аккуратова, 8</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5293-9568</contrib-id><name-alternatives><name xml:lang="en"><surname>Smirnova</surname><given-names>A. Yu.</given-names></name><name xml:lang="ru"><surname>Смирнова</surname><given-names>А. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>8 Akkuratova St., Saint Petersburg 197341</p></bio><bio xml:lang="ru"><p>197341 Санкт-Петербург, ул. Аккуратова, 8</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6998-5771</contrib-id><name-alternatives><name xml:lang="en"><surname>Vorob’ov</surname><given-names>N. A.</given-names></name><name xml:lang="ru"><surname>Воробьев</surname><given-names>Н. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Build. 3a, 2 Esenina St., Saint Petersburg 194354</p><p>7–9 Universitetskaya Naberezhnaya, Saint Petersburg 199034</p></bio><bio xml:lang="ru"><p>194354 Санкт-Петербург, ул. Есенина, 2, корп. 3а</p><p>199034 Санкт-Петербург, Университетская набережная, 7–9</p></bio><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff4"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2757-2802</contrib-id><name-alternatives><name xml:lang="en"><surname>Kataev</surname><given-names>N. A.</given-names></name><name xml:lang="ru"><surname>Катаев</surname><given-names>Н. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Build. 3a, 2 Esenina St., Saint Petersburg 194354</p></bio><bio xml:lang="ru"><p>194354 Санкт-Петербург, ул. Есенина, 2, корп. 3а</p></bio><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-7672-6703</contrib-id><name-alternatives><name xml:lang="en"><surname>Kubasov</surname><given-names>A. V.</given-names></name><name xml:lang="ru"><surname>Кубасов</surname><given-names>А. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Build. 3a, 2 Esenina St., Saint Petersburg 194354</p></bio><bio xml:lang="ru"><p>194354 Санкт-Петербург, ул. Есенина, 2, корп. 3а</p></bio><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">V.A. Almazov National Medical Research Centre, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр им. В.А. Алмазова» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Diagnostic and Treatment Center, International Institute of Biological Systems named after Sergey Berezin</institution></aff><aff><institution xml:lang="ru">ООО «Лечебно-диагностический центр Международного института биологических систем им. Сергея Березина»</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">I.I. Mechnikov North-West State Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Северо-Западный государственный медицинский университет им. И.И. Мечникова» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff4"><aff><institution xml:lang="en">Saint Petersburg State University</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Санкт-Петербургский государственный университет»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-11-07" publication-format="electronic"><day>07</day><month>11</month><year>2022</year></pub-date><volume>17</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>126</fpage><lpage>137</lpage><history><date date-type="received" iso-8601-date="2022-11-07"><day>07</day><month>11</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2022-11-07"><day>07</day><month>11</month><year>2022</year></date></history><permissions><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://oncohematology.abvpress.ru/ongm/article/view/596">https://oncohematology.abvpress.ru/ongm/article/view/596</self-uri><abstract xml:lang="en"><p>Background. Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is an effective treatment method of refractory and recurrent forms of acute leukemia in children, while the question of choosing a conditioning regimen in order to achieve the best treatment results remains debatable. Conditioning based on total body irradiation (TbI) was confirmed to be most effective in some trials, but there are still issues of overcoming early and late toxicity, as well   as difficulties in planning and routing patients.Aim. To share the experience of interdisciplinary patient management during the conditioning period with TbI inclusion in Saint petersburg, to evaluate the feasibility, toxicity and effectiveness of the method.Materials and methods. patients undergoing allo-HSCT for high risk acute lymphoblastic leukemia conditioned either with TbI (n = 12) or chemotherapy (n = 10) were included. Medical data were retrospectively analyzed with an assessment of the following transplant outcomes: HSCT-associated toxicity, the frequency and severity of infectious complications, graft versus host disease, as well as overall and event-free survival rates. we have evaluated radiotherapy plans in order to assess the compliance of radiation exposure with acceptable values for critical organs.Results. All patients with acute lymphoblastic leukemia in both groups received appropriate myeloablative conditioning. According to the study results, despite the lack of significance, we obtained differences in HSCT-associated mortality (8.3 and 30 %; p = 0.151), 2-years overall and event-free survival (66 ± 13.6 and 36 ± 16.1 %; p = 0.122) in group with TbI and HdCT respectively. It should be noted that there was a trend towards a decrease of toxic reactions frequency in case of TbI-containing regimens; however we didn’t reveal any significant differences in the number of infectious complications during post-transplant period. The median follow-up was 24.2 months and there were no signs of delayed toxicity.Conclusion. TbI-based conditioning was well tolerated with a low incidence of early and delayed toxicity, better overall and event-free survival. based on feasibility of TbI in Saint petersburg hospitals it is possible to recommend the method in routine practice, taking into account clinical indications.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение</bold>. Аллогенная трансплантация гемопоэтических стволовых клеток (алло-ТГСК) является эффективным методом терапии рефрактерных и рецидивирующих форм острых лейкозов у детей. Дискутабельным остается вопрос выбора режима кондиционирования в целях достижения наилучших результатов лечения. Кондиционирование на основе тотального облучения тела (ТОТ) в ряде исследований показало большую эффективность, однако остаются вопросы преодоления ранней и отдаленной токсичности, а также трудности планирования и маршрутизации пациентов.<bold>Цель исследования</bold> – анализ опыта междисциплинарного ведения пациентов в периоде кондиционирования с включением ТОТ в г. Санкт-Петербурге, оценка выполнимости, токсичности и эффективности метода.<bold>Материалы и методы</bold>. В анализ были включены 22 пациента с острым лимфобластным лейкозом группы высокого риска, получивших алло-ТГСК с включением ТОТ (n = 12) или только высокодозной химиотерапии (n = 10) в режимы миелоаблативного кондиционирования. Ретроспективно проанализированы истории болезни с оценкой токсичности, ассоциированной с алло-ТГСК, частоты и тяжести инфекционных осложнений, реакции «трансплантат против хозяина», а также показателей общей и бессобытийной выживаемости. проведена оценка планов лучевой терапии в целях определения соответствия лучевой нагрузки допустимым значениям на критические органы.<bold>Результаты</bold>. Все пациенты с острым лимфобластным лейкозом в обеих группах получили кондиционирование в должном объеме. Несмотря на отсутствие достоверности, получены различия в показателях летальности, ассоциированной с алло-ТГСК, до 100-го дня (8,3 и 30 %; p = 0,151), 2-летней общей и бессобытийной выживаемости (66 ± 13,6 и 36 ± 16,1 %; p = 0,122) в группах ТОТ и высокодозной химиотерапии. Следует отметить тенденцию к снижению частоты токсических реакций при использовании ТОТ-содержащих режимов кондиционирования, однако значимых различий по количеству инфекционных осложнений в посттрансплантационном периоде не выявлено. Медиана наблюдения в посттрансплантационном периоде составила 24,2 мес. проявлений отсроченной токсичности за этот период не зафиксировано.<bold>Заключение</bold>. Режимы кондиционирования с включением ТОТ у пациентов с острым лимфобластным лейкозом группы высокого риска демонстрируют удовлетворительную переносимость, низкую частоту ранней и отсроченной токсичности, лучшие показатели общей и бессобытийной выживаемости. Выполнимость метода в условиях клиник Санкт-Петербурга позволяет рекомендовать его в качестве рутинной практики с учетом клинических показаний.</p></trans-abstract><kwd-group xml:lang="en"><kwd>allogeneic hematopoietic stem cell transplantation</kwd><kwd>total body irradiation</kwd><kwd>children</kwd><kwd>acute lymphoblastic leukemia</kwd><kwd>radiation therapy</kwd><kwd>conditioning</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>аллогенная трансплантация гемопоэтических стволовых клеток</kwd><kwd>тотальное облучение тела</kwd><kwd>дети</kwd><kwd>острый лимфобластный лейкоз</kwd><kwd>лучевая терапия</kwd><kwd>кондиционирование</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Pui C.H., Yang J.J., Hunger S.P. et al. Childhood acute lymphoblastic leukemia: progress through collaboration. J Clin Oncol 2015;33(27):2938–48. 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