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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">Tumors of female reproductive system</journal-id><journal-title-group><journal-title xml:lang="en">Tumors of female reproductive system</journal-title><trans-title-group xml:lang="ru"><trans-title>Опухоли женской репродуктивной системы</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1994-4098</issn><issn publication-format="electronic">1999-8627</issn><publisher><publisher-name xml:lang="en">Publishing House ABV Press</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">1438</article-id><article-id pub-id-type="doi">10.17650/1994-4098-2025-21-4-123-129</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>GYNECOLOGY. ORIGINAL REPORTS</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>ГИНЕКОЛОГИЯ. ОРИГИНАЛЬНЫЕ СТАТЬИ</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">Obesity as a cause of adverse pregnancy outcomes</article-title><trans-title-group xml:lang="ru"><trans-title>Ожирение как причина неблагоприятных исходов беременности</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2806-4017</contrib-id><name-alternatives><name xml:lang="en"><surname>Koshulko</surname><given-names>Pavel A.</given-names></name><name xml:lang="ru"><surname>Кошулько</surname><given-names>Павел Александрович</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nikolconnik@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-4535-1890</contrib-id><name-alternatives><name xml:lang="en"><surname>Mekhralieva</surname><given-names>M. N.</given-names></name><name xml:lang="ru"><surname>Мехралиева</surname><given-names>М. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nikolconnik@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-8080-8319</contrib-id><name-alternatives><name xml:lang="en"><surname>Gevorgyan</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Геворгян</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nikolconnik@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-9494-9169</contrib-id><name-alternatives><name xml:lang="en"><surname>Urduhanova</surname><given-names>D. S.</given-names></name><name xml:lang="ru"><surname>Урдуханова</surname><given-names>Д. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nikolconnik@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-0688-8539</contrib-id><name-alternatives><name xml:lang="en"><surname>Elin</surname><given-names>N. S.</given-names></name><name xml:lang="ru"><surname>Елин</surname><given-names>Н. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nikolconnik@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-8986-4039</contrib-id><name-alternatives><name xml:lang="en"><surname>Zhironkin</surname><given-names>I. A.</given-names></name><name xml:lang="ru"><surname>Жиронкин</surname><given-names>И. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nikolconnik@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0008-6209-6681</contrib-id><name-alternatives><name xml:lang="en"><surname>Larina</surname><given-names>I. R.</given-names></name><name xml:lang="ru"><surname>Ларина</surname><given-names>И. Р.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nikolconnik@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-0149-6013</contrib-id><name-alternatives><name xml:lang="en"><surname>Chekurova</surname><given-names>A. A.</given-names></name><name xml:lang="ru"><surname>Чекурова</surname><given-names>А. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nikolconnik@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0004-2023-7790</contrib-id><name-alternatives><name xml:lang="en"><surname>Apelgants</surname><given-names>A. Yu.</given-names></name><name xml:lang="ru"><surname>Апельганц</surname><given-names>А. Ю.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nikolconnik@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-6121-5775</contrib-id><name-alternatives><name xml:lang="en"><surname>Vinogradov</surname><given-names>I. N.</given-names></name><name xml:lang="ru"><surname>Виноградов</surname><given-names>И. Н.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nikolconnik@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0006-1730-3341</contrib-id><name-alternatives><name xml:lang="en"><surname>Ermolinskaia</surname><given-names>D. S.</given-names></name><name xml:lang="ru"><surname>Ермолинская</surname><given-names>Д. С.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nikolconnik@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-4279-3852</contrib-id><name-alternatives><name xml:lang="en"><surname>Fadeeva</surname><given-names>K. A.</given-names></name><name xml:lang="ru"><surname>Фадеева</surname><given-names>К. А.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nikolconnik@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0001-7864-3853</contrib-id><name-alternatives><name xml:lang="en"><surname>Тrunina</surname><given-names>A. D.</given-names></name><name xml:lang="ru"><surname>Трунина</surname><given-names>А. Д.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nikolconnik@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0002-8674-4694</contrib-id><name-alternatives><name xml:lang="en"><surname>Мotorina</surname><given-names>M. O.</given-names></name><name xml:lang="ru"><surname>Моторина</surname><given-names>М. О.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nikolconnik@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-9872-6051</contrib-id><name-alternatives><name xml:lang="en"><surname>Кonkina</surname><given-names>D. D.</given-names></name><name xml:lang="ru"><surname>Конкина</surname><given-names>Д. Д.</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><email>nikolconnik@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Privolzhsky Research Medical University, Ministry of Health of Russia</institution></aff><aff><institution xml:lang="ru">ФГБОУ ВО «Приволжский исследовательский медицинский университет» Минздрава России</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2026-01-20" publication-format="electronic"><day>20</day><month>01</month><year>2026</year></pub-date><volume>21</volume><issue>4</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>123</fpage><lpage>129</lpage><history><date date-type="received" iso-8601-date="2026-01-23"><day>23</day><month>01</month><year>2026</year></date><date date-type="accepted" iso-8601-date="2026-01-23"><day>23</day><month>01</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Koshulko P.A., Mekhralieva M.N., Gevorgyan A.A., Urduhanova D.S., Elin N.S., Zhironkin I.A., Larina I.R., Chekurova A.A., Apelgants A.Y., Vinogradov I.N., Ermolinskaya D.S., Fadeeva K.A., Тrunina A.D., Мotorina M.O., Кonkina D.D.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Кошулько П.А., Мехралиева М.Н., Геворгян А.А., Урдуханова Д.С., Елин Н.С., Жиронкин И.А., Ларина И.Р., Чекурова А.А., Апельганц А.Ю., Виноградов И.Н., Ермолинская Д.С., Фадеева К.А., Трунина А.Д., Моторина М.О., Конкина Д.Д.</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">Koshulko P.A., Mekhralieva M.N., Gevorgyan A.A., Urduhanova D.S., Elin N.S., Zhironkin I.A., Larina I.R., Chekurova A.A., Apelgants A.Y., Vinogradov I.N., Ermolinskaya D.S., Fadeeva K.A., Тrunina A.D., Мotorina M.O., Кonkina D.D.</copyright-holder><copyright-holder xml:lang="ru">Кошулько П.А., Мехралиева М.Н., Геворгян А.А., Урдуханова Д.С., Елин Н.С., Жиронкин И.А., Ларина И.Р., Чекурова А.А., Апельганц А.Ю., Виноградов И.Н., Ермолинская Д.С., Фадеева К.А., Трунина А.Д., Моторина М.О., Конкина Д.Д.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://ojrs.abvpress.ru/ojrs/article/view/1438">https://ojrs.abvpress.ru/ojrs/article/view/1438</self-uri><abstract xml:lang="en"><p><bold>Aim.</bold> To evaluate the impact of maternal obesity on pregnancy outcomes, perinatal complications, and the prevalence of somatic and gynecological disorders in pregnant women with increased body mass.</p> <p><bold>Materials and methods.</bold> A comparative study was conducted including two groups: 100 pregnant women with obesity (body mass index ≥30 kg / m<sup>2</sup>) and 100 women with normal weight. Anthropometric parameters, somatic and gynecological history, pregnancy complications, and neonatal outcomes were analyzed. Statistical significance was determined using Student’s t-test and χ<sup>2</sup> test (<italic>p</italic> &lt;0.05).</p> <p><bold>Results.</bold> Women with obesity had higher age (30.10 ± 5.60 years old <italic>versus</italic> 25.13 ± 4.52 years old; <italic>p</italic> &lt;0.05), body weight (82.75 ± 6.74 kg <italic>versus</italic> 65.07 ± 4.40 kg; <italic>p </italic>&lt;0.05), and body mass index (31.30 ± 3.40 kg / m<sup>2</sup> <italic>versus</italic> 23.70 ± 2.85 kg / m<sup>2</sup>; <italic>p</italic> &lt;0.05). They demonstrated increased frequencies of hypertension (33 % <italic>versus</italic> 16 %), asthma (7 % <italic>versus</italic> 1 %), hypothyroidism (20 % <italic>versus</italic> 7 %), chronic pyelonephritis (26 % <italic>versus</italic> 15 %), and menstrual disorders (49 % <italic>versus</italic> 17 %). Pregnancy in the obese group was characterized by significantly higher rates of preeclampsia (47 % <italic>versus</italic> 19 %), gestational hypertension (45 % <italic>versus</italic> 17 %), threatened miscarriage (21 % <italic>versus</italic> 9 %), cervical insufficiency (9 % <italic>versus</italic> 2 %), and polyhydramnios (8 % <italic>versus</italic> 3 %). Cesarean delivery was more common in the obese group (69 % <italic>versus</italic> 28 %). Neonatal complications – including asphyxia (16 % <italic>versus</italic> 7 %), congenital malformations of the heart and kidneys (7 % <italic>versus</italic> 1 %), and hyperbilirubinemia (6 % <italic>versus</italic> 1 %) – also occurred more frequently.</p> <p><bold>Conclusion.</bold> Maternal obesity is strongly associated with adverse maternal and neonatal outcomes and should be considered a major risk factor requiring intensified clinical monitoring.</p></abstract><trans-abstract xml:lang="ru"><p><bold>Цель исследования</bold> – оценить влияние ожирения на течение беременности и перинатальные исходы, а также определить частоту соматических и гинекологических заболеваний у беременных с повышенной массой тела.</p> <p><bold>Материалы и методы.</bold> Проведено сравнительное исследование 2 групп беременных: 1-я группа – 100 пациенток с ожирением (индекс массы тела ≥30 кг / м<sup>2</sup>), 2-я группа – 100 пациенток с нормальной массой тела. Анализировали антропометрические данные, соматический и гинекологический анамнез, акушерские исходы и частоту осложнений беременности. Статистическую значимость оценивали с использованием критерия Стьюдента и χ<sup>2</sup> (<italic>p</italic> &lt;0,05).</p> <p><bold>Результаты.</bold> Пациентки с ожирением имели значительно более высокие значения индекса массы тела (31,30 ± 3,40 кг / м<sup>2</sup> против 23,70 ± 2,85 кг / м<sup>2</sup>; <italic>p</italic> &lt;0,05), массы тела (82,75 ± 6,74 кг против 65,07 ± 4,40 кг; <italic>p</italic> &lt;0,05) и были старше (30,10 ± 5,60 года против 25,13 ± 4,52 года; <italic>p</italic> &lt;0,05). В 1-й группе наблюдалась более высокая частота гипертонии (33 % против 16 %), бронхиальной астмы (7 % против 1 %), хронического пиелонефрита (26 % против 15 %) и гипотиреоза (20 % против 7 %) (все <italic>p</italic> &lt;0,05). Гинекологические заболевания, включая нарушения менструального цикла (49 % против 17 %) и эндометриоз (9 % против 2 %), также чаще встречались у женщин с ожирением (<italic>p</italic> &lt;0,05). Беременность у этих пациенток сопровождалась большей частотой преэклампсии (47 % против 19 %), угрозы прерывания (21 % против 9 %), артериальной гипертензии (45 % против 17 %), истмико-цервикальной недостаточности (9 % против 2 %) и многоводия (8 % против 3 %), также кесарево сечение выполнялось у них значительно чаще (69 % против 28 %). У новорожденных от матерей с ожирением чаще регистрировались асфиксия (16 % против 7 %), врожденные пороки развития сердца и почек (7 % против 1 %) и гипербилирубинемия (6 % против 1 %) (<italic>p</italic> &lt;0,05).</p> <p><bold>Выводы.</bold> Ожирение является значимым фактором риска неблагоприятных акушерских и перинатальных исходов, сопровождается высоким уровнем коморбидности и требует особого внимания при ведении беременности.</p></trans-abstract><kwd-group xml:lang="en"><kwd>obesity</kwd><kwd>pregnancy</kwd><kwd>adverse outcome</kwd><kwd>preeclampsia</kwd><kwd>neonatal complication</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>ожирение</kwd><kwd>беременность</kwd><kwd>перинатальный исход</kwd><kwd>преэклампсия</kwd><kwd>акушерское осложнение</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Repina M.A., Sukhikh G.T. 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