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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="review-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Annals of Clinical and Experimental Neurology</journal-id><journal-title-group><journal-title xml:lang="en">Annals of Clinical and Experimental Neurology</journal-title><trans-title-group xml:lang="ru"><trans-title>Анналы клинической и экспериментальной неврологии</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2075-5473</issn><issn publication-format="electronic">2409-2533</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">801</article-id><article-id pub-id-type="doi">10.54101/ACEN.2021.4.9</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Technologies</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Технологии</subject></subj-group><subj-group subj-group-type="article-type"><subject>Review Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Doppler ultrasound assessment of minor atrial septal defects in patients with paradoxical embolism</article-title><trans-title-group xml:lang="ru"><trans-title>Допплерографическая оценка малых дефектов межпредсердной перегородки у пациентов с парадоксальной эмболией</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0274-9694</contrib-id><name-alternatives><name xml:lang="en"><surname>Karshieva</surname><given-names>Alina R.</given-names></name><name xml:lang="ru"><surname>Каршиева</surname><given-names>Алина Равшановна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Med.), doctor of Ultrasound diagnostic laboratory</p></bio><bio xml:lang="ru"><p>к.м.н., врач лаборатории ультразвуковых методов исследования</p></bio><email>alinakarshieva@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-8726-8928</contrib-id><name-alternatives><name xml:lang="en"><surname>Chechetkin</surname><given-names>Andrey O.</given-names></name><name xml:lang="ru"><surname>Чечёткин</surname><given-names>Андрей Олегович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>D. Sci. (Med.), Head, Ultrasound diagnostic laboratory</p></bio><bio xml:lang="ru"><p>д.м.н., зав. лаб. ультразвуковых методов исследования</p></bio><email>alinakarshieva@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3124-2443</contrib-id><name-alternatives><name xml:lang="en"><surname>Belopasova</surname><given-names>Anastasia V.</given-names></name><name xml:lang="ru"><surname>Белопасова</surname><given-names>Анастасия Владимировна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>PhD (Med.), 3<sup>rd</sup> Neurological department</p></bio><bio xml:lang="ru"><p>к.м.н., н.с. 3-го неврологического отделения</p></bio><email>alinakarshieva@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9929-2725</contrib-id><name-alternatives><name xml:lang="en"><surname>Dobrynina</surname><given-names>Larisa A.</given-names></name><name xml:lang="ru"><surname>Добрынина</surname><given-names>Лариса Анатольевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>D. Sci. (Med.), Head, 3<sup>rd</sup> Neurology department</p></bio><bio xml:lang="ru"><p>д.м.н., г.н.с., рук. 3-го неврологического отделения</p></bio><email>alinakarshieva@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Research Center of Neurology</institution></aff><aff><institution xml:lang="ru">ФГБНУ «Научный центр неврологии»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2021-12-23" publication-format="electronic"><day>23</day><month>12</month><year>2021</year></pub-date><volume>15</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>86</fpage><lpage>92</lpage><history><date date-type="received" iso-8601-date="2021-12-23"><day>23</day><month>12</month><year>2021</year></date><date date-type="accepted" iso-8601-date="2021-12-23"><day>23</day><month>12</month><year>2021</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2021, Karshieva A.R., Chechetkin A.O., Belopasova A.V., Dobrynina L.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2021, Каршиева А.Р., Чечёткин А.О., Белопасова А.В., Добрынина Л.А.</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="en">Karshieva A.R., Chechetkin A.O., Belopasova A.V., Dobrynina L.A.</copyright-holder><copyright-holder xml:lang="ru">Каршиева А.Р., Чечёткин А.О., Белопасова А.В., Добрынина Л.А.</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://annaly-nevrologii.com/pathID/article/view/801">https://annaly-nevrologii.com/pathID/article/view/801</self-uri><abstract xml:lang="en"><p>Minor atrial septal defect (ASD) may be one of the pathways of paradoxical embolism in the brain. Few scientific papers have investigated the relationship between ASD (excluding patent foramen ovale) and the occurrence of ischemic stroke. There is no definite opinion as to how functionally important such shunts are and how the shunt changes with age. The review analyzes modern ideas about the probability of paradoxical embolism in small ASDs from the viewpoint of pathophysiology, and also demonstrates the technological capabilities of assessing the functional significance of such shunts based on our own clinical observations.</p></abstract><trans-abstract xml:lang="ru"><p>Дефект межпредсердной перегородки (ДМПП) малого размера может быть одним из путей возникновения парадоксальной эмболии в головной мозг. В литературе представлены единичные работы, посвящённые исследованию взаимосвязи ДМПП (исключая открытые овальные окна) и возникновения ишемического инсульта. Не существует однозначного мнения, насколько функционально значимы такие шунты и каким образом меняется сброс крови с возрастом. В обзоре анализируются современные представления о вероятности возникновения парадоксальной эмболии при малых ДМПП с точки зрения патофизиологии, а также демонстрируются методологические возможности оценки функциональной значимости таких сбросов на основании собственных клинических наблюдений.</p></trans-abstract><kwd-group xml:lang="en"><kwd>atrial septal defect</kwd><kwd>contrast-enhanced transcranial Doppler ultrasound</kwd><kwd>ischaemic stroke</kwd><kwd>paradoxical embolism</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>дефект межпредсердной перегородки</kwd><kwd>контрастная транскраниальная допплерография</kwd><kwd>ишемический инсульт</kwd><kwd>парадоксальная эмболия</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">Adams H.P.Jr., Bendixen B.H., Kappelle L.G. et al. Classification of subtype of acute ischemic stroke. 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