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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">morpho</journal-id><journal-title-group><journal-title xml:lang="ru">Морфологические ведомости</journal-title><trans-title-group xml:lang="en"><trans-title>Morphological newsletter</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1812-3171</issn><issn pub-type="epub">2686-8741</issn><publisher><publisher-name>Private Medical University REAVIZ</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20340/mv-mn.2022.30(1).634</article-id><article-id custom-type="elpub" pub-id-type="custom">morpho-634</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>ОРИГИНАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>RESEARCH ARTICLES</subject></subj-group></article-categories><title-group><article-title>МОРФОМЕТРИЧЕСКАЯ ХАРАКТЕРИСТИКА ЛЕВОГО УШКА СЕРДЦА ВЗРОСЛОГО ЧЕЛОВЕКА</article-title><trans-title-group xml:lang="en"><trans-title>THE MORPHOMETRIC CHARACTERISTICS OF THE LEFT ATRIAL APPENDAGE IN HEART OF ADULT HUMAN</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6681-7537</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Гапонов</surname><given-names>Антон Александрович</given-names></name><name name-style="western" xml:lang="en"><surname>Gaponov</surname><given-names>Anton A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ассистент кафедры анатомии человека</p></bio><bio xml:lang="en"><p>Assistant of the Department of Human Anatomy</p></bio><email xlink:type="simple">gagaponov@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/0000-0001-8267-2895</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Якимов</surname><given-names>Андрей Аркадьевич</given-names></name><name name-style="western" xml:lang="en"><surname>Yakimov</surname><given-names>Andrey A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доцент, кандидат медицинских наук, доцент кафедры анатомии человека Уральского государственного медицинского университета; доцент института естественных наук и математики Уральского федерального университета </p></bio><bio xml:lang="en"><p>Candidate of Medical Sciences, Docent, Associate Professor of the Department of Human Anatomy of the Ural State Medical University; Associate Professor of the Institute of Natural Sciences and Mathematics of the Ural Federal University</p></bio><email xlink:type="simple">andrei071997@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Уральский государственный медицинский университет, Екатеринбург</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ural State Medical University, Yekaterinburg</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Уральский государственный медицинский университет, Уральский федеральный университет, Екатеринбург</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ural State Medical University, Ural Federal University, Yekaterinburg</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>01</day><month>02</month><year>2022</year></pub-date><volume>30</volume><issue>1</issue><fpage>27</fpage><lpage>34</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гапонов А.А., Якимов А.А., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">Гапонов А.А., Якимов А.А.</copyright-holder><copyright-holder xml:lang="en">Gaponov A.A., Yakimov A.A.</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.morpholetter.com/jour/article/view/634">https://www.morpholetter.com/jour/article/view/634</self-uri><abstract><p>Цель исследования – морфометрическая характеристика левого предсердного ушка условно нормального сердца взрослого человека при разном количестве долей этого ушка. Исследовали 52 препарата сердца массой 250–400 грамм людей 36–89 лет, умерших от причин, не связанных с болезнями сердца, сосудов, мышечной или соединительной ткани. Левое предсердие заполняли жидким силиконом с отвердителем. На время отвердевания силикона препараты подвешивали так, чтобы нижняя стенка левого предсердия была приподнята над плоскостью стола на 10–15º. После отвердевания силикона штангенциркулем измеряли габаритные размеры сердца, левого ушка и его долей. Определяли количество долей и краев ушка. Для статистического анализа различий использовали непараметрические критерии. Установлено, что в 71,1 % случаев левое ушко сердца имело две доли, в 21,2 % три доли, в 7,7 % было однодолевым. Проксимальные доли трехдолевых ушек могли быть короткими и длинными. Трехдолевые ушки были длиннее, чем двухдолевые (U=106,5; р=0,018). Значения ширины левого ушка сердца не зависели от количества его долей (Н=0,95; р=0,62). В 98,1 % случаев предсердные ушки имели край, направленный к легочному стволу, в 96,1% случаев имели край, обращенный к диафрагмальной поверхности сердца, у 94,2 % препаратов был край, обращенный к верхушке сердца, у 25 % был левопредсердный край, направленный назад и вверх. Чаще всего, в 65,4 % случаев, левое ушко сердца имело три края: легочный, апикальный и диафрагмальный. Таким образом, установлено, что левое ушко сердца характеризуется выраженной анатомической изменчивостью формы. Разное количество долей, краев ушка, разное сочетание этих признаков и соотношение значений длины и ширины долей ушка и ушка в целом предлагается рассматривать как критерии для выделения анатомических типов и вариантов строения ушка левого предсердия человека.</p></abstract><trans-abstract xml:lang="en"><p>The aim of the study was a morphometric characteristic of the left atrial appendage of a conditionally normal adult heart with a different number of lobes of this structure. We studied 52 preparations of the heart weighing 250-400 grams of people aged 36-89 who died from causes not related to diseases of the heart, blood vessels, muscle or connective tissue. The left atrium of the heart was filled with liquid silicone with a hardener. During the silicone hardening, the preparations were suspended so that the its lower wall was raised above the table plane by 10–15º. After the silicone hardened, the overall dimensions of the heart, left atrial appendage, and its lobes were measured with a caliper. The number of lobes and edges of the atrial appendage was determined. Nonparametric tests were used for statistical analysis of differences. It was established that in 71,1% of cases the left atrial appendages had two lobes, in 21,2% three lobes, in 7,7% it was single-lobed. The proximal lobes of the three-lobed left atrial appendages could be short or long. Three-lobed left atrial appendages were longer than two-lobed ones (U=106,5; p=0,018). The values of the width of the left atrial appendage of the heart did not depend on the number of its lobes (H=0,95; p=0,62). In 98,1% of cases, the atrial appendage had an edge directed towards the pulmonary artery, in 96,1% of cases they had an edge facing the diaphragmatic surface of the heart, in 94,2% of the preparations there was an edge facing the apex of the heart, in 25% of cases there was a left atrial edge directed back and up. Most often, in 65,4% of cases, the left appendage of the heart had three edges: pulmonary, apical and diaphragmatic. Thus, it was established that the left atrial appendage of the heart is characterized by a pronounced anatomical variability in shape. A different number of lobes, edges of the left atrial appendage, a different combination of these features and the ratio of the length and width of the lobes of the atrial appendage and the atrial appendage as a whole are proposed to be considered as criteria for distinguishing anatomical types and structural variants of the human left atrial appendage.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сердце</kwd><kwd>анатомическая изменчивость</kwd><kwd>левое предсердие</kwd><kwd>ушко предсердия</kwd><kwd>морфометрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>heart</kwd><kwd>anatomical variability</kwd><kwd>left atrium</kwd><kwd>auricle</kwd><kwd>morphometry</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">Hołda MK, Hołda J, Strona M, et al. Blood vessels and myocardial thickness within the left atrial appendage isthmus line. Clin Anat. 2018;31(7):1024–1030. 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