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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">ymj</journal-id><journal-title-group><journal-title xml:lang="ru">Якутский медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Yakut Medical Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1813-1905</issn><issn pub-type="epub">2312-1017</issn><publisher><publisher-name>ЯНЦ КМП</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25789/YMJ.2026.94.33</article-id><article-id custom-type="elpub" pub-id-type="custom">ymj-3334</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>СЛУЧАЙ ИЗ ПРАКТИКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL CASE</subject></subj-group></article-categories><title-group><article-title>Ишемический инсульт в бассейне артерии Першерона: клиническое наблюдение редкого состояния</article-title><trans-title-group xml:lang="en"><trans-title>Ischemic stroke in the artery of Percheron territory: a case report of a rare condition</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>Птицына</surname><given-names>Е. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Ptitsyna</surname><given-names>E. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Птицына Елизавета Петровна – студентка 6 курса лечебного отделения.</p><p>ул. Кулаковского, 36, Якутск, 677000</p></bio><email xlink:type="simple">ptisynaelizaveta@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4159-500X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Таппахов</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Tappakhov</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Таппахов Алексей Алексеевич – канд. мед. наук, доц. кафедры неврологии и психиатрии Медицинского института СВФУ им. М.К. Аммосова; ст. науч. сотр. ФГБНУ «ЯНЦ КМП».</p><p>ул. Кулаковского, 36, Якутск, 677000; ул. Кирова, д. 7, Якутск, 677018</p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4201-8570</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Николаева</surname><given-names>Т. Я.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikolaeva</surname><given-names>T. Ya.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Николаева Татьяна Яковлевна – д-р мед. наук, проф., зав. кафедрой неврологии и психиатрии Медицинского института.</p><p>ул. Кулаковского, 36, Якутск, 677000</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>Герасимова</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Gerasimova</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Герасимова Анна Васильевна – зав. отделением для больных с ОНМК Кардиососудистого центра.</p><p>Сергеляхское ш., 4, г. Якутск, 677010</p></bio><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>ФГАОУ ВО «Северо-Восточный федеральный университет им. М.К. Аммосова»</institution><country>Russian Federation</country></aff><aff xml:lang="ru" id="aff-2"><institution>ФГАОУ ВО «Северо-Восточный федеральный университет им. М.К. Аммосова»; ФГБНУ «Якутский научный центр комплексных медицинских проблем»</institution><country>Russian Federation</country></aff><aff xml:lang="ru" id="aff-3"><institution>ГАУ РС(Я) РС(Я) «Республиканская больница №1-Национальный центр медицины имени М.Е. Николаева»</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>21</day><month>06</month><year>2026</year></pub-date><volume>0</volume><issue>2</issue><fpage>147</fpage><lpage>150</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Птицына Е.П., Таппахов А.А., Николаева Т.Я., Герасимова А.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Птицына Е.П., Таппахов А.А., Николаева Т.Я., Герасимова А.В.</copyright-holder><copyright-holder xml:lang="en">Ptitsyna E.P., Tappakhov A.A., Nikolaeva T.Y., Gerasimova A.V.</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://ymj.elpub.ru/jour/article/view/3334">https://ymj.elpub.ru/jour/article/view/3334</self-uri><abstract><p>В статье представлено клиническое наблюдение ишемического инсульта в бассейне артерии Першерона у мужчины 34 лет с острым развитием когнитивных нарушений и психомоторного возбуждения. Диагностика была затруднена ввиду отсутствия изменений на компьютерной томографии в первые сутки, что подчеркивает низкую чувствительность метода при таламических инфарктах. Решающую роль в верификации диагноза сыграли МРТ в DWI-режиме, выявившая двусторонние очаги ишемии в таламусах, и МР-ангиография, подтвердившая наличие артерии Першерона. Проведенная дифференциальная диагностика позволила исключить энцефалопатию Вернике, клещевой и аутоиммунный энцефалит, дебют психического заболевания и экзогенную интоксикацию. Молекулярно-генетическое исследование выявило гомозиготную мутацию в гене MTHFR (677 C/T, T/T) на фоне гипергомоцистеинемии. На фоне комплексной терапии достигнут регресс психомоторного возбуждения и когнитивных нарушений.</p></abstract><trans-abstract xml:lang="en"><p>This article presents a clinical case of ischemic stroke in the artery of Percheron territory in a 34-year-old man with acute onset of cognitive impairment and psychomotor agitation. Diagnosis was challenging due to the absence of pathological findings on computed tomography within the first 24 hours, highlighting the low sensitivity of this imaging modality in thalamic infarcts. Magnetic resonance imaging with diffusion-weighted imaging (DWI) played a decisive role in verifying the diagnosis, revealing bilateral ischemic lesions in the thalami, while magnetic resonance angiography confirmed the presence of the artery of Percheron. Differential diagnosis allowed the exclusion of Wernicke’s encephalopathy, tick-borne encephalitis, autoimmune encephalitis, first-episode psychiatric disorder, and exogenous intoxication. Molecular genetic testing revealed a homozygous mutation in the MTHFR gene (677 C/T, T/T) in the setting of hyperhomocysteinemia. Comprehensive therapy resulted in regression of psychomotor agitation and cognitive impairment.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ишемический инсульт</kwd><kwd>артерия Першерона</kwd><kwd>биталамический инфаркт</kwd><kwd>молодой возраст</kwd><kwd>когнитивные нарушения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>ischemic stroke</kwd><kwd>artery of Percheron</kwd><kwd>bithalamic infarction</kwd><kwd>young age</kwd><kwd>cognitive impairment</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">Feigin VL, Brainin M, Norrving B, et al. World Stroke Organization: Global Stroke Fact Sheet 2025. Int J Stroke. 2025; (2): 132-144. https://doi:10.1177/17474930241308142. Epub 2025 Jan 3. PMID: 39635884; PMCID: PMC11786524.</mixed-citation><mixed-citation xml:lang="en">Feigin VL, Brainin M, Norrving B, et al. World Stroke Organization: Global Stroke Fact Sheet 2025. 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