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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">microcirculation</journal-id><journal-title-group><journal-title xml:lang="ru">Регионарное кровообращение и микроциркуляция</journal-title><trans-title-group xml:lang="en"><trans-title>Regional blood circulation and microcirculation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-6655</issn><issn pub-type="epub">2712-9756</issn><publisher><publisher-name>Academician I.P. Pavlov First St. Petersburg State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24884/1682-6655-2021-20-2-45-51</article-id><article-id custom-type="elpub" pub-id-type="custom">microcirculation-946</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 (КЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ)</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES (CLINICAL INVESTIGATIONS)</subject></subj-group></article-categories><title-group><article-title>Информативность распределения кровотока в прецеребральных артериях при определении гемодинамической значимости каротидного стеноза</article-title><trans-title-group xml:lang="en"><trans-title>Informativity of blood flow distribution in the precerebral arteries for determining the hemodynamic significance of carotid stenosis</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9248-9821</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Семенютин</surname><given-names>В. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Semenyutin</surname><given-names>V. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Семенютин Владимир Борисович – д-р биол. наук, профессор, зав. научно-исследовательской лабораторией патологии мозгового кровообращения </p><p>197341, Санкт-Петербург, ул. Аккуратова, д. 2</p></bio><bio xml:lang="en"><p>Semenyutin Vladimir B. – Dr. Sci. (Biol.), Prof., Head of the Laboratory of brain circulation pathology </p><p>2, Akkuratova str., Saint Petersburg, 197341</p></bio><email xlink:type="simple">lbcp@mail.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/0000-0002-2617-6739</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никифорова</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikiforova</surname><given-names>А. А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Никифорова Анна Александровна – канд. мед. наук, старший научный сотрудник научно-исследовательской лаборатории патологии мозгового кровообращения</p><p>197341, Санкт-Петербург, ул. Аккуратова, д. 2</p></bio><bio xml:lang="en"><p>Nikiforova Аnna А. – Cand. Sci. (Med.), Senior researcher of the Laboratory of brain circulation pathology </p><p>2, Akkuratova str., Saint Petersburg, 197341</p></bio><email xlink:type="simple">nkfrv_a@mail.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/0000-0003-4259-3193</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Алиев</surname><given-names>В. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Aliev</surname><given-names>V. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алиев Вугар Али оглы – д-р мед. наук, ведущий научный сотрудник научно-исследовательской лаборатории патологии мозгового кровообращения </p><p>197341, Санкт-Петербург, ул. Аккуратова, д. 2</p></bio><bio xml:lang="en"><p>Aliev Vugar A. – Dr. Sci. (Med.), Leading researcher of the Laboratory of brain circulation pathology </p><p>2, Akkuratova str., Saint Petersburg, 197341</p></bio><email xlink:type="simple">rnhi@mail.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/0000-0003-0983-1831</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Панунцев</surname><given-names>Г. К.</given-names></name><name name-style="western" xml:lang="en"><surname>Panuntsev</surname><given-names>G. К.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Панунцев Григорий Константинович – канд. мед. наук, старший научный сотрудник научно-исследовательской лаборатории патологии мозгового кровообращения </p><p>197341, Санкт-Петербург, ул. Аккуратова, д. 2</p></bio><bio xml:lang="en"><p>Panuntsev Grigory К. – Cand. Sci. (Med.), Senior researcher of the Laboratory of brain circulation pathology </p><p>2, Akkuratova str., Saint Petersburg, 197341</p></bio><email xlink:type="simple">gpanuntsev@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение «Национальный медицинский исследовательский центр имени В. А. Алмазова» Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>V. A. Almazov National Medical Research Centre</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>10</day><month>06</month><year>2021</year></pub-date><volume>20</volume><issue>2</issue><fpage>45</fpage><lpage>51</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Семенютин В.Б., Никифорова А.А., Алиев В.А., Панунцев Г.К., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Семенютин В.Б., Никифорова А.А., Алиев В.А., Панунцев Г.К.</copyright-holder><copyright-holder xml:lang="en">Semenyutin V.B., Nikiforova А.А., Aliev V.A., Panuntsev G.К.</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.microcirc.ru/jour/article/view/946">https://www.microcirc.ru/jour/article/view/946</self-uri><abstract><p>Введение. В настоящее время гемодинамически значимым стенозом считается стеноз с повышением пиковой систолической скорости от 230 см/с, что соответствует 70 % сужению внутренней сонной артерии. При этом не учитываются изменения церебральной гемодинамики и состояние коллатерального кровообращения, которые можно определить по соотношению кровотока в прецеребральных артериях. Цель – оценить перераспределение объемной скорости кровотока в прецеребральных артериях у больных с критическими каротидными стенозами. Материалы и методы. Обследованы 40 пациентов с критическими каротидными стенозами (13 пациентов имели стеноз 70–79 %, 11 пациентов – 80–89 %, 16 пациентов – 90–99 %) в возрасте от 49 до 80 лет. Индекс кровотока в прецеребральных артериях определяли с помощью дуплексного сканирования (Vivid e, США), линейную скорость кровотока в интракраниальных артериях – с помощью транскраниальной допплерографии (MultiDop X, Германия). Результаты. У 60 % пациентов отмечено достоверное снижение индекса кровотока в ипсилатеральной стенозированной внутренней сонной артерии (p&lt;0,05). У 49 % пациентов выявлено достоверное повышение индекса кровотока в контрлатеральной внутренней сонной артерии, а также линейной скорости кровотока в контрлатеральной передней мозговой артерии (p&lt;0,05). Только у 39 % пациентов наблюдали повышение индекса кровотока в ипсилатеральной позвоночной артерии и линейной скорости кровотока в ипсилатеральной задней мозговой артерии (p&lt;0,05). У 13 % пациентов отмечено повышение индекса кровотока в наружной сонной артерии (p&lt;0,05). Заключение. Таким образом, критическая степень каротидного стеноза не всегда свидетельствует о его гемодинамической значимости. Соотношение индекса кровотока в прецеребральных артериях может быть использовано как дополнительный критерий для оценки гемодинамической значимости каротидного стеноза и, наряду с другими показателями, должно учитываться при определении тактики лечения пациентов.</p></abstract><trans-abstract xml:lang="en"><p>Introduction. Conventionally, hemodynamic significance of carotid stenosis is characterized with an increased peak systolic velocity up to 230 cm/s, which corresponds to 70 % carotid stenosis. This does not take into account changes of cerebral hemodynamics or collateral circulation, which can be determined by assessment of blood flow distribution in precerebral arteries. Aim – to evaluate blood flow redistribution in precerebral arteries in patients with critical carotid stenosis. Materials and methods. 40 patients (aged 49–80 y. o.) with critical carotid stenosis were studied (13 patients had 70–79 % stenosis, 11 patients – 80–89 %, and 16 patients – 90–99 % stenosis). Flow velocity index in precerebral arteries was determined with duplex scanning (Vivid e, USA), whereas linear blood flow velocity in intracranial arteries – with transcranial Doppler (MultiDop X, Germany). Results. In 60 % of patients, flow velocity index in ipsilateral carotid artery was reliably decreased (p&lt;0.05). In 49 % of patients flow velocity index in contralateral carotid artery and blood flow velocity in contralateral anterior cerebral artery were reliably increased (p&lt;0.05), as well as linear blood flow velocity in the contralateral anterior cerebral artery. Just in 39 % of patients flow velocity index in ipsilateral vertebral artery and linear blood flow velocity in ipsilateral posterior cerebral artery were increased (p&lt;0.05). In 13 % of cases flow velocity index in the external carotid artery was increased (p&lt;0.05). Conclusion. Thus, critical degree of carotid stenosis does not always indicate its hemodynamic significance. Flow velocity index distribution in precerebral arteries can be used as an additional criterion for assessing hemodynamic significance of carotid stenosis and, along with other indicators, should be taken into account when choosing treatment modality.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>каротидный стеноз</kwd><kwd>гемодинамическая значимость</kwd><kwd>прецеребральные артерии</kwd><kwd>мозговой кровоток</kwd><kwd>индекс кровотока</kwd></kwd-group><kwd-group xml:lang="en"><kwd>carotid stenosis</kwd><kwd>hemodynamic significance</kwd><kwd>precerebral arteries</kwd><kwd>cerebral blood flow</kwd><kwd>flow velocity index</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке гранта РФФИ № 19-29-01190.</funding-statement><funding-statement xml:lang="en">The reported study was funded by RFBR, number 19-29-01190.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Spencer M. 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