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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">medjournal</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинский журнал</journal-title><trans-title-group xml:lang="en"><trans-title>Medical Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1818-426X</issn><publisher><publisher-name>Белорусский государственный медицинский университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.51922/1818-426X.2025.2.141</article-id><article-id custom-type="elpub" pub-id-type="custom">medjournal-326</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>CASE FROM PRACTICE</subject></subj-group></article-categories><title-group><article-title>Киста перикарда у пожилого пациента с фибрилляцией предсердий</article-title><trans-title-group xml:lang="en"><trans-title>Pericardial cyst in an elderly patient with atrial fibrillation: a clinical case</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>Лемешевская</surname><given-names>С. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Lemeshevskaya</surname><given-names>S. S.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лемешевский</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Lemeshevskij</surname><given-names>A. I.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Почтавцев</surname><given-names>А. Ю.</given-names></name><name name-style="western" xml:lang="en"><surname>Pochtavcev</surname><given-names>A. Yu.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Черненко</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Chernenko</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</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>Теплякова</surname><given-names>К. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Teplyakova</surname><given-names>K. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</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>Альшевская</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Al'shevskaya</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>УО «Белорусский государственный медицинский университет»</institution><country>Belarus</country></aff><aff xml:lang="ru" id="aff-2"><institution>УЗ «3-я городская клиническая больница имени Е. В. Клумова»</institution><country>Belarus</country></aff><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>25</day><month>06</month><year>2025</year></pub-date><volume>0</volume><issue>2</issue><fpage>141</fpage><lpage>145</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Лемешевская С.С., Лемешевский А.И., Почтавцев А.Ю., Черненко А.А., Теплякова К.А., Альшевская А.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Лемешевская С.С., Лемешевский А.И., Почтавцев А.Ю., Черненко А.А., Теплякова К.А., Альшевская А.В.</copyright-holder><copyright-holder xml:lang="en">Lemeshevskaya S.S., Lemeshevskij A.I., Pochtavcev A.Y., Chernenko A.A., Teplyakova K.A., Al'shevskaya 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://medjournal.ejournal.by/jour/article/view/326">https://medjournal.ejournal.by/jour/article/view/326</self-uri><abstract><p>Кисты перикарда представляют собой редкие образования средостения, обычно протекающие бессимптомно и часто случайно обнаруживаемые на рентгенограммах грудной клетки. Кисты перикарда могут быть врожденными и приобретенными (вследствие воспаления, инфекции, травмы, паразитарного поражения или др.). В статье мы представили клинический случай 74-летнего мужчины с ишемической болезнью сердца, пароксизмальной формой фибрилляции предсердий на фоне ожирения, у которого развилась правожелудочковая недостаточность. На обзорной рентгенографии органов грудной клетки киста перикарда не визуализировалась. Диагноз был поставлен с использованием компьютерной томографии и эхокардиографии. Размеры кисты перикарда по данным КТ 70×52×80 мм, при контрастном усилении без накопления контрастного вещества, образование компримитировало правый желудочек сердца. Комплексное консервативное лечение ишемической болезни сердца в сочетании с контролем ритма было эффективно. Для решения вопроса об оперативном решении пациент был переведен в кардиохирургию. В статье представлен разбор основных причин данного патологического состояния, данные исследований, лечебная тактика. Необходимо знать клинику кист перикарда и учитывать при дифференциальной диагностике.</p></abstract><trans-abstract xml:lang="en"><p>Pericardial cysts are rare mediastinal lesions that are usually asymptomatic and often discovered incidentally on chest radiographs. Pericardial cysts can be congenital or acquired (due to inflammation, infection, trauma, parasitic infection, etc.). In the article, we presented a clinical case of a 74-year-old man with coronary heart disease, paroxysmal atrial fibrillation associated with obesity, who developed right ventricular failure. The pericardial cyst was not visualized on a plain chest X-ray. The diagnosis was made using computed tomography and echocardiography. The dimensions of the pericardial cyst according to CT data are 70×52×80 mm, with contrast enhancement without accumulation of contrast agent, the formation compressed the right ventricle of the heart. Complex conservative treatment of coronary heart disease in combination with rhythm control was effective. To resolve the issue of surgical decision, the patient was transferred to cardiac surgery. The article presents an analysis of the main causes of this pathological condition, research data, and treatment tactics. It is necessary to know the clinic of pericardial cysts and take them into account in differential diagnosis.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>киста перикарда</kwd><kwd>компьютерная томография</kwd><kwd>эхокардиография</kwd><kwd>фибрилляция предсердий</kwd></kwd-group><kwd-group xml:lang="en"><kwd>pericardial cyst</kwd><kwd>computed tomography</kwd><kwd>echocardiography</kwd><kwd>atrial fibrillation</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">Целомическая киста перикарда. Случай из клинической практики / Е. М. Сурмач, С. Н. Демидик, В. 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