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<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">pirogovestnik</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Национального медико-хирургического центра им. Н.И. Пирогова</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Pirogov National Medical &amp; Surgical Center</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2072-8255</issn><issn pub-type="epub">2782-3628</issn><publisher><publisher-name>Национальный медико-хирургический Центр им. Н.И. Пирогова</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25881/20728255_2025_20_1_151</article-id><article-id custom-type="elpub" pub-id-type="custom">pirogovestnik-282</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>КЛИНИЧЕСКИЕ НАБЛЮДЕНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CASE REPORTS</subject></subj-group></article-categories><title-group><article-title>ТРАНСПЕТРОЗАЛЬНОЕ УДАЛЕНИЕ ОПУХОЛИ ЭНДОЛИМФАТИЧЕСКОГО МЕШКА С ПРИМЕНЕНИЕМ НЕЙРОФИЗИОЛОГИЧЕСКОГО МОНИТОРИНГА</article-title><trans-title-group xml:lang="en"><trans-title>TRANSPETROSAL REMOVAL OF AN ENDOLYMPHATIC SAC TUMOR WITH NEUROPHYSIOLOGICAL MONITORING</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Молчанов</surname><given-names>И. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Molchanov</surname><given-names>I. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Курск</p></bio><bio xml:lang="en"><p>Kursk</p></bio><email xlink:type="simple">MolchanovlP@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Димерцев</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dimertsev</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зуев</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Zuev</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Москва</p></bio><bio xml:lang="en"><p>Moscow</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Курский государственный медицинский университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kursk State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБУ Национальный медико-хирургический Центр им. Н.И. Пирогова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Pirogov National Medical and Surgical Center</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>09</day><month>03</month><year>2025</year></pub-date><volume>20</volume><issue>1</issue><fpage>151</fpage><lpage>155</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Молчанов И.П., Димерцев А.В., Зуев А.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Молчанов И.П., Димерцев А.В., Зуев А.А.</copyright-holder><copyright-holder xml:lang="en">Molchanov I.P., Dimertsev A.V., Zuev A.A.</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://submit.pirogov-vestnik.ru/jour/article/view/282">https://submit.pirogov-vestnik.ru/jour/article/view/282</self-uri><abstract><p>Одним из редких новообразований пирамиды височной кости является опухоль эндолимфатического мешка (ОЭМ). Прогрессирование заболевания характеризуется нарастанием неврологической симптоматики, включая нейросенсорную тугоухость, парез лицевого нерва, головную боль. Нейрохирургическая тактика имеет отличия от стандартных методов лечения опухолей вследствие особенностей гисто-анатомических характеристик ОЭМ. Микрохирургическое удаление ОЭМ является эффективным методом лечения, тогда как радиохирургия имеет ограниченные возможности и используется в послеоперационном периоде при остаточных объемах патологической ткани или рецидивах новообразования. При оперативном вмешательстве выполнялся ретролабиринтный доступ с субтотальной петрозэктомией с применением нейронавигации и нейрофизиологического мониторинга. Предварительная эмболизация питающих опухоль сосудов не проводилась, однако интраоперационно была использована аутогемотрансфузионная система Cell-Saver и гемостатические материалы. Метод показал свою безопасность и эффективность, обеспечив сравнительно небольшой объём кровопотери, полную декомпрессию прилежащих интракраниальных структур, включая бульбарную группу черепномозговых нервов, частичную – по VII и VIII парам, что сопровождалось регрессом неврологической симптоматики, а также удовлетворительной степенью резекции новообразования. Тем самым, подобный подход может быть рекомендован для лечения опухолей эндолимфатического мешка, так как несет меньшие риски рецидивов и операционных осложнений для пациента.</p></abstract><trans-abstract xml:lang="en"><p>One of the rare neoplasms of the pyramid of the temporal bone is an endolymphatic sac tumor (ELST). The progression of the disease is characterized by an increase in neurological symptoms, including sensorineural hearing loss, facial nerve paresis, and headache. Neurosurgical tactics differ from standard methods of treating tumors because of the histoanatomical characteristics of ELST. This article describes a case of successful treatment of an endolymphatic sac tumor. Microsurgical removal of ELST is a best treatment, whereas radiosurgery has limited possibilities. This method used in the postoperative period with residual volumes of pathological tissue or tumor recurrence. We use retrolabyrinthine access with subtotal petrosectomy with neuronavigation and neurophysiological monitoring. Embolization of the vessels feeding the tumor was not performed before operation. Autohemotransfusion system, named Cell-Saver, and hemostatic materials were used intraoperatively. This method is safety and effectiveness, providing a relatively small amount of blood loss, complete decompression of intracranial structures, including the bulbar group of cranial nerves, partial - the VII and VIII pairs, which, however, was accompanied by regression of neurological symptoms and a satisfactory degree of resection of the tumor. This tactic can be recommended for the treatment of endolymphatic sac tumor, since there are lower risks of relapses and surgical complications for the patient.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>опухоль эндолимфатического мешка</kwd><kwd>нейрофизиологический мониторинг</kwd><kwd>микрохирургическое лечение</kwd><kwd>петрозэктомия</kwd><kwd>гемостатические материалы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>endolymphatic sac tumor</kwd><kwd>neurophysiological monitoring</kwd><kwd>microsurgical treatment</kwd><kwd>petrosectomy</kwd><kwd>hemostatic materials</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">Woods RSR, Naude A, O’Sullivan JB, et al. Management of Temporal Bone Malignancy in Ireland. 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