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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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Kazan medical journal</journal-id><journal-title-group><journal-title xml:lang="en">Kazan medical journal</journal-title><trans-title-group xml:lang="ru"><trans-title>Казанский медицинский журнал</trans-title></trans-title-group></journal-title-group><issn publication-format="print">0368-4814</issn><issn publication-format="electronic">2587-9359</issn><publisher><publisher-name xml:lang="en">Eco-Vector</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">634278</article-id><article-id pub-id-type="doi">10.17816/KMJ634278</article-id><article-id pub-id-type="edn">JONDLY</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Theoretical and clinical medicine</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Теоретическая и клиническая медицина</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Features of Ovarian Linear Dimensions and Structural Characteristics of Fallopian Tubes Depending on Body Side</article-title><trans-title-group xml:lang="ru"><trans-title>Особенности линейных размеров яичников и структурных характеристик маточных труб в зависимости от стороны тела</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-3152-8380</contrib-id><contrib-id contrib-id-type="spin">8298-5970</contrib-id><name-alternatives><name xml:lang="en"><surname>Balandin</surname><given-names>Anatolii A.</given-names></name><name xml:lang="ru"><surname>Баландин</surname><given-names>Анатолий Александрович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Cand. Sci. (Medicine), Assistant Professor, Depart. of Normal, Topographic and Clinical Anatomy, Operative Surgery</p></bio><bio xml:lang="ru"><p>кандидат медицинских наук, доцент, каф. нормальной, топографической и клинической анатомии, оперативной хирургии</p></bio><email>balandinnauka@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4856-9066</contrib-id><contrib-id contrib-id-type="scopus">57189078149</contrib-id><contrib-id contrib-id-type="researcherid">AAH-2726-2020</contrib-id><contrib-id contrib-id-type="spin">6484-8520</contrib-id><name-alternatives><name xml:lang="en"><surname>Balandina</surname><given-names>Irina A.</given-names></name><name xml:lang="ru"><surname>Баландина</surname><given-names>Ирина Анатольевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, Dr. Sci. (Medicine), Professor, Head, Depart. of Normal, Topographic and Clinical Anatomy, Operative Surgery</p></bio><bio xml:lang="ru"><p>доктор медицинских наук, профессор, заведующая, каф. нормальной, топографической и клинической анатомии, оперативной хирургии</p></bio><email>balandina_ia@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0003-1741-1316</contrib-id><name-alternatives><name xml:lang="en"><surname>Kobeleva</surname><given-names>Anna S.</given-names></name><name xml:lang="ru"><surname>Кобелева</surname><given-names>Анна Сергеевна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Methodologist, Depart. of Normal, Topographic and Clinical Anatomy, Operative Surgery</p></bio><bio xml:lang="ru"><p>методист, каф. нормальной, топографической и клинической анатомии, оперативной хирургии</p></bio><email>a.s.kobelevaa@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6564-9519</contrib-id><name-alternatives><name xml:lang="en"><surname>Dimidova</surname><given-names>Alina M.</given-names></name><name xml:lang="ru"><surname>Димидова</surname><given-names>Алина Манолисовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Methodologist, Depart. of Normal, Topographic and Clinical Anatomy, Operative Surgery</p></bio><bio xml:lang="ru"><p>методист, каф. нормальной, топографической и клинической анатомии, оперативной хирургии</p></bio><email>alina.nefidova2013@yandex.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9652-9088</contrib-id><contrib-id contrib-id-type="spin">8112-5167</contrib-id><name-alternatives><name xml:lang="en"><surname>Nikitin</surname><given-names>Vladislav N.</given-names></name><name xml:lang="ru"><surname>Никитин</surname><given-names>Владислав Николаевич</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>Cand. Sci. (Physics and Mathematics), Senior Lecturer, Depart. of Medical and Biological Physics, Assistant Professor, Depart. of Computational Mathematics, Mechanics and Biomechanics</p></bio><bio xml:lang="ru"><p>канд. физ.-мат. наук, старший преподаватель, каф. медицинской и биологической физики, доцент, каф. вычислительной математики, механики и биомеханики</p></bio><email>nikitinvladislav86@yandex.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Academician Ye.A. Vagner Perm State Medical University</institution></aff><aff><institution xml:lang="ru">Пермский государственный медицинский университет им. Ак. Е.А. Вагнера</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Perm National Research Polytechnic University</institution></aff><aff><institution xml:lang="ru">Пермский национальный исследовательский политехнический университет</institution></aff></aff-alternatives><pub-date date-type="preprint" iso-8601-date="2025-05-30" publication-format="electronic"><day>30</day><month>05</month><year>2025</year></pub-date><pub-date date-type="pub" iso-8601-date="2025-06-15" publication-format="electronic"><day>15</day><month>06</month><year>2025</year></pub-date><volume>106</volume><issue>3</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>389</fpage><lpage>396</lpage><history><date date-type="received" iso-8601-date="2024-07-13"><day>13</day><month>07</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-10-15"><day>15</day><month>10</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Eco-Vector</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Эко-Вектор</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Eco-Vector</copyright-holder><copyright-holder xml:lang="ru">Эко-Вектор</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/" start_date="2028-06-15"/></permissions><self-uri xlink:href="https://kazanmedjournal.ru/kazanmedj/article/view/634278">https://kazanmedjournal.ru/kazanmedj/article/view/634278</self-uri><abstract xml:lang="en"><p><bold><italic>BACKGROUND</italic></bold><italic>:</italic> The study of the female reproductive system remains relevant owing to the prevalence of pathologies that exhibit symmetrical and asymmetrical features.</p> <p><bold><italic>AIM:</italic></bold> To identify morphological asymmetry patterns in the ovaries and fallopian tubes across their different anatomical regions.</p> <p><bold><italic>MATERIAL AND METHODS:</italic></bold> Ultrasound of the ovaries was performed in 23 women aged 30–55 years (mean age: 43.0 ± 0.7 years) without reproductive system pathology and with no more than two pregnancies in history, with the last occurring &gt;5 years prior to the study. The participants were in the premenopausal period and had normal pelvic dimensions. The length, width, and anteroposterior size of each ovary were measured, and ovarian volume was calculated. Micrometric analysis was conducted using postmortem material from 23 women of similar age, without reproductive system pathology, and deceased due to injuries unrelated to abdominal or pelvic organs. The thickness of the mucosal and muscular layers at the intramural part, isthmus, ampulla, and infundibulum of the fallopian tubes were measured. Statistical analysis included Student’s t-test to assess significant mean differences, Pearson’s correlation coefficient to evaluate proportional variability between parameters, and the Mann–Whitney U test to compare independent samples by the value of the fallopian tube parameters.</p> <p><bold><italic>RESULTS:</italic></bold> Comparative analysis of the linear dimensions (i.e., length [<italic>p</italic> = 0.4041], width [<italic>p</italic> = 0.9443], anteroposterior size [<italic>p</italic> = 0.9525], and volume [<italic>p</italic> = 0.4215]) of the ovaries in women during the second period of adulthood based on ultrasound examination revealed larger right-sided measurements, averaging 1.557% greater. Micrometric measurements of the fallopian tubes during cadaveric examination showed a right-sided predominance averaging 0.649%. The Pearson correlation coefficients calculated to assess the proportional relationships between corresponding parameters of the right and left fallopian tubes indicated a strong positive correlation. The minimum correlation coefficient was 0.992 based on ultrasound data and 0.982 based on cadaveric material. Although no significant differences were found between the parameters of both ovaries and both fallopian tubes, percentage-based deviations demonstrated an average right-sided predominance of 0.731%.</p> <p><bold><italic>CONCLUSION:</italic></bold> Comparative analysis of the ovarian sizes and micrometric measurements of the fallopian tubes showed a positive correlation between the corresponding right and left parameters.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Актуальность.</bold> Актуальность исследования органов репродуктивной системы женщины обусловлена распространённостью патологии, проявляющей особенности по принципу симметрии и асимметрии.</p> <p><bold>Цель.</bold> Выявить закономерности морфологической асимметрии яичников и маточных труб в их различных отделах.</p> <p><bold>Материал и методы.</bold> Ультразвуковое исследование яичников выполнили у 23 женщин в возрасте от 30 до 55 лет включительно (средний возраст — 43,0±0,7 года), не имеющих патологии органов репродуктивной системы, с числом беременностей в анамнезе не более двух, причём последняя беременность произошла более 5 лет назад. На момент обследования все участницы находились в пременопаузальном периоде и имели нормальные размеры таза. Измеряли длину, ширину и размер каждого яичника в переднезаднем направлении, рассчитывали его объём. На секционном материале 23 рожавших женщин аналогичного возраста, не имевших патологии органов репродуктивной системы и погибших в результате ранений или травм без повреждений органов живота и малого таза, проводили микрометрическое исследование. Измеряли толщину слизистой и мышечной оболочек. Осуществляли забор фрагментов маточных труб в местах их внутриматочной части, в перешейке, ампуле и воронке. Использовали t-критерий Стьюдента для определения статистической значимости различий средних величин, корреляционный анализ по Пирсону для оценки пропорциональности изменчивости между параметрами, критерий Манна–Уитни для оценки статистического различия двух независимых выборок по значению параметров маточных труб.</p> <p><bold>Результаты.</bold> Сравнительный анализ линейных размеров [длины (<italic>p</italic>=0,4041), ширины (<italic>p</italic>=0,9443), переднезаднего размера (<italic>p</italic>=0,9525) и объёма (<italic>p</italic>=0,4215)] яичников у женщин во втором периоде зрелого возраста с использованием ультразвукового исследования выявил тенденцию к преобладанию показателей справа в среднем на 1,557%. Микрометрические показатели маточных труб, установленные при секционном исследовании, характеризуются преобладанием параметров справа в среднем на 0,649%. Рассчитанные коэффициенты корреляции по Пирсону для оценки выраженности пропорциональной связи между одноимёнными параметрами правой и левой маточных труб показывают сильную положительную связь: по данным ультразвукового исследования минимальное значение коэффициента корреляции составляет 0,992, по данным секционного материала — 0,982. Параметры обоих яичников и обеих маточных труб статистически неразличимы, однако рассчитанные относительные отклонения величин, выраженные в процентах, показывают, что в среднем значение справа превышает значение параметра слева на 0,731%.</p> <p><bold>Заключение.</bold> Сравнительный анализ размеров яичников и микрометрических показателей маточных труб показывает наличие сильной взаимосвязи между значениями одноимённых параметров справа и слева.</p></trans-abstract><kwd-group xml:lang="en"><kwd>reproductive system</kwd><kwd>fallopian tubes</kwd><kwd>ovaries</kwd><kwd>asymmetry</kwd><kwd>ultrasound</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>репродуктивная система</kwd><kwd>маточные трубы</kwd><kwd>яичники</kwd><kwd>асимметрия</kwd><kwd>ультразвуковое исследование</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Francés-Herrero E, Lopez R, Hellström M, et al. 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