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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">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">641</article-id><article-id pub-id-type="doi">10.17650/2949-5857-2023-13-3-11-20</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></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Endoscopic radiofrequency ablation under the control of ultrasonography as a new method of treatment of neuroendocrine pancreatic tumors and analgesia option for locally advanced forms of pancreatic cancer. First experience in Russia</article-title><trans-title-group xml:lang="ru"><trans-title>Эндоскопическая радиочастотная абляция под контролем ультрасонографии как новый метод лечения нейроэндокринных опухолей поджелудочной железы и вариант анальгезии при местно-распространенных формах рака поджелудочной железы. Первый опыт в России</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6262-7763</contrib-id><name-alternatives><name xml:lang="en"><surname>Lozovaya</surname><given-names>V. V.</given-names></name><name xml:lang="ru"><surname>Лозовая</surname><given-names>В. В.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Valeriya Vitalievna Lozovaya</p><p>Department of Postgraduate Education of Doctors</p><p>24 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>Валерия Витальевна Лозовая</p><p>кафедра последипломного образования врачей</p><p>115522 Москва, Каширское шоссе, 24</p></bio><email>lera.lozovaya@bk.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-0829-7809</contrib-id><name-alternatives><name xml:lang="en"><surname>Malikhova</surname><given-names>O. A.</given-names></name><name xml:lang="ru"><surname>Малихова</surname><given-names>О. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115522</p><p>Build. 1, 2 / 1 Barricadnaya St., Moscow 123242</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 24</p><p>123242 Москва, ул. Баррикадная, 2 / 1, стр. 1</p></bio><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/0000-0002-5151-7718</contrib-id><name-alternatives><name xml:lang="en"><surname>Vodoleev</surname><given-names>A. S.</given-names></name><name xml:lang="ru"><surname>Водолеев</surname><given-names>А. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>3 2nd Botkinskiy proezd, Moscow 125284</p></bio><bio xml:lang="ru"><p>125284 Москва, 2-й Боткинский проезд, 3</p></bio><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6179-1115</contrib-id><name-alternatives><name xml:lang="en"><surname>Gusarova</surname><given-names>O. A.</given-names></name><name xml:lang="ru"><surname>Гусарова</surname><given-names>О. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5863-5197</contrib-id><name-alternatives><name xml:lang="en"><surname>Tumanyan</surname><given-names>A. O.</given-names></name><name xml:lang="ru"><surname>Туманян</surname><given-names>А. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1959-1886</contrib-id><name-alternatives><name xml:lang="en"><surname>Malikhov</surname><given-names>A. G.</given-names></name><name xml:lang="ru"><surname>Малихов</surname><given-names>А. Г.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>24 Kashirskoe Shosse, Moscow 115522</p></bio><bio xml:lang="ru"><p>115522 Москва, Каширское шоссе, 24</p></bio><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБУ «Национальный медицинский исследовательский центр онкологии им. Н. Н. Блохина» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Russian Medical Academy of Postgraduate Education, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБОУ ДПО «Российская медицинская академия непрерывного профессионального образования» Минздрава России</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">P.A. Hertzen Moscow Oncology Research Institute – branch of the National Medical Research Radiological Center, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">МНИОИ им. П. А. Герцена – филиал ФГБУ «НМИЦ радиологии» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-12-21" publication-format="electronic"><day>21</day><month>12</month><year>2023</year></pub-date><volume>13</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>11</fpage><lpage>20</lpage><history><date date-type="received" iso-8601-date="2023-12-18"><day>18</day><month>12</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2023-12-18"><day>18</day><month>12</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Lozovaya V.V., Malikhova O.A., Vodoleev A.S., Gusarova O.A., Tumanyan A.O., Malikhov A.G.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Лозовая В.В., Малихова О.А., Водолеев А.С., Гусарова О.А., Туманян А.О., Малихов А.Г.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Lozovaya V.V., Malikhova O.A., Vodoleev A.S., Gusarova O.A., Tumanyan A.O., Malikhov A.G.</copyright-holder><copyright-holder xml:lang="ru">Лозовая В.В., Малихова О.А., Водолеев А.С., Гусарова О.А., Туманян А.О., Малихов А.Г.</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://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://onco-surgery.info/jour/article/view/641">https://onco-surgery.info/jour/article/view/641</self-uri><abstract xml:lang="en"><p><bold>Background.</bold> Radiofrequency ablation (RFA) of pancreatic NET up to 20 mm in size under endosonographic control (EUS) may become the method of choice in the treatment of this group of patients, as well as an option for analgesia in patients with locally advanced forms of pancreatic cancer. <bold>Aim.</bold> Describe the RFA – EUS technique, evaluate the safety and efficacy of the RFA – EUS method in the treatment of NET of the pancreas, up to 2.0 cm in diameter, and ablation of the celiac plexus in a cohort of patients with locally advanced forms of pancreatic cancer in order to relieve pain. <bold>Materials and Methods.</bold> In a prospective ongoing observational study conducted at the FSBI “N. N. Blokhin national Medical Research Center of Oncology” of the Ministry of Health of Russia from September 2022 to June 2023, data of 10 patients with resectable NET and unresectable malignant neoplasms of the pancreas were analyzed. The main method of treatment in 100 % of cases was RFA – EUS, performed for the first time in Russia. All patients at the first stage underwent esophagogastroduodenoscopy (EGDS) and endosonographic study with fine needle aspiration biopsy (EUS-TAB) to verify the diagnosis. At the second stage, all patients underwent RFA – EUS. The main evaluated parameter in the group of patients with NET was the absence of residual tumor tissue after RFA – EUS, according to Endo-US and MRI, the nature of changes in the pancreatic tissue after RFA was additionally assessed – fibrous or necrotic changes in the area of RFA – EUS. The main parameter evaluated in the group of patients with unresectable pancreatic cancer was the absence of pain within 8 weeks. and complete withdrawal from opioid analgesics 3–5 days after RFA – EUS. <bold>Results.</bold> According to the results of a morphological study, the diagnosis of pancreatic NET was confirmed in 7 (70 %) patients, adenocarcinoma – in 3 (30 %). Technical success, defined as a complete endosonographic and radiological response 3 months after the intervention in the group of patients with pancreatic NET (<italic>n</italic> = 7; 70 %) and complete withdrawal of opioid analgesics at 3–5 days, with the preservation of the analgesic effect for 8 weeks. after RFA – EUS, was achieved in 100 % of cases (<italic>n</italic> = 3; 30 %). Return to opioid analgesics after 3 months RFA – EUS in the group of patients with adenocarcinoma of the pancreas (<italic>n</italic> = 3; 30 %) was noted in 20 % of cases (<italic>n</italic> = 2), which required re-intervention, in 10 % (<italic>n</italic> = 1) – it was not possible to estimate the duration of the analgesic effect due to the death of the patient 2 months after RFA – EUS, the median follow-up was 6 months. <bold>Conclusion.</bold> The results of the study are the first experience of using RFA – EUS in the treatment of malignant neoplasms of the pancreas. EUS-guided RFA is an effective, minimally invasive and safe treatment for pancreatic NET, up to 2.0 cm in diameter, as well as an analgesic option for advanced pancreatic cancer. To determine the indications, contraindications and effectiveness of RFA in the radical and symptomatic treatment of malignant neoplasms of the pancreas, it is necessary to conduct large prospective multicenter studies.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Введение.</bold> Радиочастотная абляция (РЧА) нейроэндокринных опухолей поджелудочной железы размерами до 20 мм под эндосонографическим контролем может стать методом выбора в лечении данной группы пациентов, а также вариантом анальгезии пациентов с местно-распространенными формами рака поджелудочной железы. <bold>Цель исследования</bold> – описать технику выполнения радиочастотной абляции под контролем эндоскопического ультразвукового исследования (РЧА – ЭУЗИ), оценить безопасность и эффективность метода в лечении нейроэндокринных опухолей поджелудочной железы размерами до 2,0 см в диаметре и абляции чревного сплетения в когорте пациентов с местно-распространенными формами рака поджелудочной железы для купирования болевого синдрома. <bold>Материалы и методы.</bold> В проспективном продолжающемся наблюдательном исследовании, проведенном на базе НИИ клинической онкологии им. Н. Н. Трапезникова ФГБУ «НМИЦ онкологии им. Н. Н. Блохина» Минздрава России в период с сентября 2022 по июнь 2023 г., были проанализированы данные пациентов с резектабельными нейроэндокринными опухолями и нерезектабельными злокачественными новообразованиями поджелудочной железы. Основным методом лечения в 100 % наблюдений стала впервые выполненная в России РЧА – ЭУЗИ. Всем пациентам на первом этапе были выполнены эзофагогастродуоденоскопия и эндосонографическое исследование с тонкоигольной аспирационной биопсией с целью верификации диагноза. На 2-м этапе всем пациентам была выполнена РЧА – ЭУЗИ. Основным оцениваемым параметром в группе пациентов с нейроэндокринными опухолями было отсутствие остаточной опухолевой ткани после проведенной абляции. Согласно данным эндоскопического ультразвукового исследования и магнитно-резонансной томографии дополнительно оценивали характер изменений ткани поджелудочной железы после радиочастотной абляции – фиброзные или некротические изменения в области проведения РЧА – ЭУЗИ. Основными оцениваемыми параметрами в группе пациентов с нерезектабельным раком поджелудочной железы было отсутствие болевого синдрома в течение 8 нед и полный отказ от опиоидных анальгетиков на 3–5-е сутки после РЧА – ЭУЗИ. <bold>Результаты.</bold> По результатам морфологического исследования диагноз нейроэндокринных опухолей поджелудочной железы был подтвержден у 7 (70 %) пациентов, аденокарцинома – у 3 (30 %). технический успех, определенный как полный эндосонографический и рентгенологический ответ через 3 мес после вмешательства в группе пациентов с нейроэндокринными опухолями поджелудочной железы (<italic>n</italic> = 7; 70 %) и полный отказ от опиоидных анальгетиков на 3–5-е сутки с сохранением анальгетического эффекта в течение 8 нед после РЧА – ЭУЗИ, был достигнут в 100 % наблюдений (<italic>n</italic> = 3; 30 %). Возвращение к опиоидным анальгетикам через 3 мес после РЧА – ЭУЗИ в группе пациентов с аденокарциномой поджелудочной железы (<italic>n</italic> = 3; 30 %) отмечалось в 20 % наблюдений <italic>(n</italic> = 2), что потребовало проведения повторного вмешательства, в 10 % (<italic>n</italic> = 1) оценить продолжительность анальгетического эффекта не представлялось возможным в связи со смертью пациента спустя 2 мес после РЧА – ЭУЗИ, медиана наблюдения составила 6 мес. <bold>Заключение.</bold> Результаты исследования показывают первый опыт применения РЧА – ЭУЗИ в лечении злокачественных новообразований поджелудочной железы. РЧА – ЭУЗИ является эффективным, малоинвазивным и безопасным методом лечения нейроэндокринных опухолей поджелудочной железы размерами до 2,0 см в диаметре, а также вариантом анальгезии при местно-распространенном раке поджелудочной железы. Для определения показаний, противопоказаний и эффективности радиочастотной абляции в радикальном и симптоматическом лечении злокачественных новообразований поджелудочной железы необходимо проведение крупных проспективных многоцентровых исследований.</p></trans-abstract><kwd-group xml:lang="en"><kwd>radiofrequency ablation</kwd><kwd>endosonographic study</kwd><kwd>pancreatic nET</kwd><kwd>pancreatic cancer</kwd><kwd>pancreatic adenocarcinoma</kwd><kwd>pain syndrome</kwd><kwd>analgesia</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>радиочастотная абляция</kwd><kwd>эндосонографическое исследование</kwd><kwd>нейроэндокринные опухоли поджелудочной железы</kwd><kwd>рак поджелудочной железы</kwd><kwd>аденокарцинома поджелудочной железы</kwd><kwd>болевой синдром</kwd><kwd>анальгезия</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">1. 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