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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">clinmed</journal-id><journal-title-group><journal-title xml:lang="ru">Клиническая медицина</journal-title><trans-title-group xml:lang="en"><trans-title>Clinical Medicine (Russian Journal)</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0023-2149</issn><issn pub-type="epub">2412-1339</issn><publisher><publisher-name>ООО «Медицинское информационное агентство»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.30629/0023-2149-2026-104-4-316-322</article-id><article-id custom-type="elpub" pub-id-type="custom">clinmed-1457</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>ЗАМЕТКИ И НАБЛЮДЕНИЯ ИЗ ПРАКТИКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>NOTES AND OBSERVATIONS FROM PRACTICE</subject></subj-group></article-categories><title-group><article-title>Инфекционный эндокардит клапана легочной артерии при врожденном дефекте аорто-легочной перегородки с синдромом Эйзенменгера: клиническое наблюдение</article-title><trans-title-group xml:lang="en"><trans-title>Infective endocarditis of the pulmonary valve in congenital aortopulmonary septal defect with eisenmenger syndrome</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4050-7389</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ахмедова</surname><given-names>Н. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Akhmedova</surname><given-names>N. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ахмедова Назлы Эльсевар кызы – ординатор второго года по специальности «Кардиология»</p><p>Рязань</p></bio><bio xml:lang="en"><p>Nazly E. kyzy Akhmedova – second-year resident in the specialty «Cardiology»</p><p>Ryazan</p></bio><email xlink:type="simple">ahmedova_an@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/0000-0001-6658-2072</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Филоненко</surname><given-names>С. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Filonenko</surname><given-names>S. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Филоненко Сергей Павлович – канд. мед. наук, доцент кафедры госпитальной терапии с курсом медико-социальной экспертизы</p><p>Рязань</p></bio><bio xml:lang="en"><p>Sergey P. Filonenko – Candidate of Medical Sciences, Associate Professor of the Department of Hospital Therapy with a course in Medical and Social Expertise</p><p>Ryazan</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-1435-4865</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Глуховец</surname><given-names>И. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Glukhovets</surname><given-names>I. В.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Глуховец Илья Борисович – канд. мед. наук, доцент кафедры гистологии, патологической анатомии и медицинской генетики</p><p>Рязань</p></bio><bio xml:lang="en"><p>Ilya В. Glukhovets – Candidate of Medical Sciences, Associate Professor of the Department of Histology, Pathological Anatomy and Medical Genetics</p><p>Ryazan</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7459-5380</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Субботин</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Subbotin</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Субботин Сергей Викторович – канд. мед. наук, заведующий кардиологическим отделением №1 Рязанского областного клинического кардиологического диспансера</p><p>Рязань</p></bio><bio xml:lang="en"><p>Sergey V. Subbotin – Candidate of Medical Sciences, Head of the Cardiology Department №1 of the Ryazan Regional Clinical Cardiology Dispensary</p><p>Ryazan</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Рязанский государственный медицинский университет им. академика И.П. Павлова»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ryazan State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ГБУ РО «Областной клинический кардиологический диспансер»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Regional Clinical Cardiology Dispensary</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>20</day><month>06</month><year>2026</year></pub-date><volume>104</volume><issue>4</issue><fpage>316</fpage><lpage>322</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ахмедова Н.Э., Филоненко С.П., Глуховец И.Б., Субботин С.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Ахмедова Н.Э., Филоненко С.П., Глуховец И.Б., Субботин С.В.</copyright-holder><copyright-holder xml:lang="en">Akhmedova N.E., Filonenko S.P., Glukhovets I.В., Subbotin S.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://www.clinmedjournal.com/jour/article/view/1457">https://www.clinmedjournal.com/jour/article/view/1457</self-uri><abstract><p>Дефект аорто-легочной перегородки (ДАЛП) представляет собой редкий врожденный порок сердца, характеризующийся аномальным сообщением между восходящей аортой и легочным стволом при наличии двух отдельных полулунных клапанов. Среди септальных аномалий ДАЛП ассоциируется с наиболее быстрым и неблагоприятным развитием легочной гипертензии и синдрома Эйзенменгера; летальность при неоперированном пороке достигает 40% в первый год жизни. В статье представлен клинический случай 49-летнего пациента с врожденным ДАЛП, осложнившимся синдромом Эйзенменгера, у которого развился инфекционный эндокардит клапана легочной артерии – крайне редкое сочетание, ранее не описанное в литературе.</p></abstract><trans-abstract xml:lang="en"><p>An aortopulmonary septal defect (APSD) is a rare congenital heart anomaly characterized by an abnormal communication between the ascending aorta and the pulmonary trunk in the presence of two distinct semilunar valves. Among septal defects, APSD is associated with the most rapid and unfavorable progression of pulmonary hypertension and Eisenmenger syndrome; in unoperated cases, mortality reaches up to 40% within the first year of life. We present a clinical case of a 49-year-old patient with congenital APSD complicated by Eisenmenger syndrome, who developed infective endocarditis of the pulmonary valve – an extremely rare combination not previously described in the literature.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>инфекционный эндокардит</kwd><kwd>дефект аорто-легочной перегородки</kwd><kwd>врожденные пороки сердца</kwd><kwd>синдром Эйзенменгера</kwd><kwd>легочная гипертензия</kwd><kwd>клапан легочной артерии</kwd></kwd-group><kwd-group xml:lang="en"><kwd>infective endocarditis</kwd><kwd>aortopulmonary septal defect</kwd><kwd>congenital heart defects</kwd><kwd>Eisenmenger syndrome</kwd><kwd>pulmonary hypertension</kwd><kwd>pulmonary valve</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">Gužvinec P., Muscogiuri G., Hrabak-Paar M. 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