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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">rmt</journal-id><journal-title-group><journal-title xml:lang="ru">Общая реаниматология</journal-title><trans-title-group xml:lang="en"><trans-title>General Reanimatology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1813-9779</issn><issn pub-type="epub">2411-7110</issn><publisher><publisher-name>FSBI "SRIGR" RAMS</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.15360/1813-9779-2021-5-65-79</article-id><article-id custom-type="elpub" pub-id-type="custom">rmt-2136</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>ПРАКТИКУЮЩЕМУ ВРАЧУ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>FOR PRACTIONER</subject></subj-group></article-categories><title-group><article-title>Анализ мгновенных параметров сигнала ЭЭГ на основании разложения по эмпирическим модам в применении к паттерну «вспышка-подавление» при анестезии пропофолом</article-title><trans-title-group xml:lang="en"><trans-title>Instantaneous EEG Signal Analysis Based on Empirical Mode Decomposition Applied to Burst-Suppression in Propofol Anaesthesia</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>Соболова</surname><given-names>Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Sobolova</surname><given-names>G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>036 01, Мартин, ул. Колларова, д. 2.</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Фабус</surname><given-names>М. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Fabus</surname><given-names>M. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Оксфорд OX3 9DU, Больница Джона Рэдклиффа, Западное крыло, уровень 6.</p></bio><bio xml:lang="en"><p>Marco S. Fabus.Level 6, West Wing, John Radcliffe Hospital, Oxford OX3 9DU.</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>Фишер</surname><given-names>М.</given-names></name><name name-style="western" xml:lang="en"><surname>Fischer</surname><given-names>M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>036 01, Мартин, ул. Колларова, д. 2.</p></bio><bio xml:lang="en"><p>Martin Fischer.2 Kollarova Str., 036 01 Martin.</p></bio><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дробны</surname><given-names>М.</given-names></name><name name-style="western" xml:lang="en"><surname>Drobny</surname><given-names>M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дробны Михаил.036 01, Мартин, ул. Колларова, д. 2.</p></bio><bio xml:lang="en"><p>Michal Drobny.2 Kollarova Str., 036 01 Martin.</p></bio><email xlink:type="simple">drobny@unm.sk</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Дробна-Саниова</surname><given-names>Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Drobna-Saniova</surname><given-names>B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Дробна-Саниова Беата.036 01, Мартин, ул. Колларова, д. 2.</p></bio><bio xml:lang="en"><p>Beata Drobna-Saniova.2 Kollarova Str., 036 01 Martin.</p></bio><email xlink:type="simple">beata.saniova@uniba.sk</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Братиславский университет им. Коменского, медицинский факультет Ессениуса в Мартине, Университетская клиника, Клиника анестезиологии и интенсивной медицины, Словацкая Республика</institution><country>Словакия</country></aff><aff xml:lang="en"><institution>Clinic of Anaesthesiology and Intensive Medicine, Jessenius Faculty of Medicine in Martin, Comenius University Bratislava</institution><country>Slovakia</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Центр интегративной нейровизуализации Веллком, кафедра клинических нейронаук Наффилда, Оксфордский университет</institution><country>Великобритания</country></aff><aff xml:lang="en"><institution>Wellcome Centre for Integrative Neuroimaging, Nuffield Department of Clinical Neurosciences, University of Oxford</institution><country>United Kingdom</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Братиславский университет им. Коменского, медицинский факультет Ессениуса в Мартине, Университетская клиника, Клиника анестезиологии и интенсивной медицины</institution><country>Словакия</country></aff><aff xml:lang="en"><institution>Clinic of Anaesthesiology and Intensive Medicine, Jessenius Faculty of Medicine in Martin, Comenius University Bratislava</institution><country>Slovakia</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>23</day><month>10</month><year>2021</year></pub-date><volume>17</volume><issue>5</issue><fpage>65</fpage><lpage>79</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Соболова Г., Фабус М.С., Фишер М., Дробны М., Дробна-Саниова Б., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Соболова Г., Фабус М.С., Фишер М., Дробны М., Дробна-Саниова Б.</copyright-holder><copyright-holder xml:lang="en">Sobolova G., Fabus M.S., Fischer M., Drobny M., Drobna-Saniova B.</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.reanimatology.com/rmt/article/view/2136">https://www.reanimatology.com/rmt/article/view/2136</self-uri><abstract><p>Электроэнцефалограмма (ЭЭГ) представляет собой регистрацию нестационарного и нелинейного электрофизиологического сигнала, возникающего в результате синхронного возбуждения нейронов в таламокортикальных структурах мозга. Из-за сложности организации физиологических структур мозга и его ритмических колебаний при анализе ЭЭГ часто используются методы спектрального анализа.Цель. Повысить качество клинического мониторинга нейрофизиологических сигналов и получить более глубокие представления об основных принципах функциональных механизмов головного мозга во время анестезии.Материал и методы. В данной работе использовали разложение по эмпирическим модам (РЭМ) новый метод спектрального анализа, особенно подходящий для нестационарных и нелинейных сигналов. РЭМ и соответствующее преобразование Гильберта-Хуанга (англ. HHT) разлагают сигнал на составляющие внутренние модовые функции (ВМФ). В данном исследовании применили РЭМ для анализа паттерна «вспышка-подавление» (ПВП) ЭЭГ человека во время индукции общей анестезии (ОА) пропофолом. ПВП — это состояние, характеризующееся циклическими изменениями между выраженным подавлением активности мозга и гиперактивными всплесками с переменной продолжительностью, амплитудой и формой волны. ПВП возникает после индукции глубокой общей анестезии, после внутривенного болюсного введения препарата для общей анестезии. В данной статье рассматривается динамика ПВП с помощью отношения «вспышка-подавление» (ОВП).Результаты. При сравнении связи между ЭЭГ и ОВП внутренних колебаний (англ. IMF, внутренние модовые функции) показали, что ОВП зависит в основном от альфа-активности. Отметили разную скорость возвращения к исходному уровню ОВП для различных спектральных компонентов (IMF 1-4) после исчезновения ПВП на ЭЭГ, что свидетельствует о том, что ПВП может по-разному нарушать функционирование нейронных генераторов низкочастотных осцилляций ЭЭГ и таламокортикальную функциональную связь.Заключение. Изучение ПВП с помощью РЭМ представляет собой новую форму анализа ЭЭГ, способную прояснить нейрофизиологические механизмы данного феномена и его влияние на послеоперационный прогноз состояния пациента.</p></abstract><trans-abstract xml:lang="en"><p>The human electroencephalogram (EEG) constitutes a nonstationary, nonlinear electrophysiological signal resulting from synchronous firing of neurons in thalamocortical structures of the brain. Due to the complexity of the brain's physiological structures and its rhythmic oscillations, analysis of EEG often utilises spectral analysis methods.Aim: to improve clinical monitoring of neurophysiological signals and to further explain basic principles of functional mechanisms in the brain during anaesthesia.Material and methods. In this paper we used Empirical Mode decomposition (EMD), a novel spectral analysis method especially suited for nonstationary and nonlinear signals. EMD and the related Hilbert-Huang Transform (HHT) decompose signal into constituent Intrinsic Mode Functions (IMFs). In this study we applied EMD to analyse burst-suppression (BS) in the human EEG during induction of general anaesthesia (GA) with propofol. BS is a state characterised by cyclic changes between significant depression of brain activity and hyper-active bursts with variable duration, amplitude, and waveform shape. BS arises after induction into deep general anaesthesia after an intravenous bolus of general anaesthetics. Here we studied the behaviour of BS using the burst-suppression ratio (BSR).Results. Comparing correlations between EEG and IMF BSRs, we determined BSR was driven mainly by alpha activity. BSRs for different spectral components (IMFs 1-4) showed differing rates of return to baseline after the end of BS in EEG, indicating BS might differentially impair neural generators of low-frequency EEG oscillations and thalamocortical functional connectivity.Conclusion. Studying BS using EMD represents a novel form of analysis with the potential to elucidate neurophysiological mechanisms of this state and its impact on post-operative patient prognosis.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ЭЭГ</kwd><kwd>электроэнцефалография</kwd><kwd>разложение по эмпирическим модам</kwd><kwd>ННТ</kwd><kwd>преобразование Гильберта-Хуанга</kwd><kwd>паттерн «вспышка-подавление»</kwd><kwd>внутренние модовые функции</kwd><kwd>пропофол</kwd></kwd-group><kwd-group xml:lang="en"><kwd>EEG</kwd><kwd>EMD</kwd><kwd>HHT</kwd><kwd>Burst-Suppression</kwd><kwd>Intrinsic Mode Functions</kwd><kwd>Propofol</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Это исследование полностью или частично финансировалось Wellcome Trust [номер гранта 203139/Z/16/Z]. В целях обеспечения открытого доступа авторы согласны с использованием любой версии данного документа и его производных согласно лицензии общественного авторского права CC. Авторы также благодарят Эндрю Куинна за обсуждение аспектов РЭМ и инструментария Python РЭМ.</funding-statement><funding-statement xml:lang="en">This research was funded in whole, or in part, by the Wellcome Trust [Grant number 203139/Z/16/Z]. For the purpose of open access, the authors have applied a CC BY public copyright licence to any Author Accepted Manuscript version arising from this submission. The authors also give thanks to Andrew Quinn for discussions about EMD and the Python EMD toolbox.</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">Sanders R.D., Tononi G, Laureys S., Sleigh J.W. Unresponsiveness # Unconsciousness. Anesthesiology. 2012; 116 (4): 946-959. DOI: 10.1097/ALN.0b013e318249d0a7.</mixed-citation><mixed-citation xml:lang="en">Sanders R.D., Tononi G, Laureys S., Sleigh J.W. Unresponsiveness # Unconsciousness. 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