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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">docru</journal-id><journal-title-group><journal-title xml:lang="ru">Доктор.Ру</journal-title><trans-title-group xml:lang="en"><trans-title>Title</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1727-2378</issn><issn pub-type="epub">2713-2994</issn><publisher><publisher-name>ООО "ГК "РУСМЕДИКАЛ"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.31550/1727-2378-2025-24-5-28-41</article-id><article-id custom-type="elpub" pub-id-type="custom">docru-352</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 СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL PAPERS</subject></subj-group></article-categories><title-group><article-title>Особенности COVID-19 различной степени тяжести при беременности</article-title><trans-title-group xml:lang="en"><trans-title>Features of COVID-19 of Varying Severity in Pregnant Women</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9405-0134</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Ищенко</surname><given-names>Л. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Ishchenko</surname><given-names>L. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ищенко Людмила Станиславовна — к. м. н., доцент, доцент кафедры акушерства и гинекологии ФГБОУ ВО ЮУГМУ Минздрава России; врач акушер-гинеколог ГБУЗ «ОКБ № 2»</p><p>Челябинск</p></bio><bio xml:lang="en"><p>Chelyabinsk</p></bio><email xlink:type="simple">lyudalyn@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/0000-0002-9055-102X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Воропаева</surname><given-names>Е. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Voropaeva</surname><given-names>E. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Воропаева Екатерина Евгеньевна — д. м. н., профессор, профессор кафедры патологической анатомии и судебной медицины ФГБОУ ВО ЮУГМУ Минздрава России; заместитель главного врача по акушерству и гинекологии ГБУЗ «ОКБ № 2»</p><p>Челябинск</p></bio><bio xml:lang="en"><p>Chelyabinsk</p></bio><email xlink:type="simple">katya_voropaeva@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/0000-0002-1672-7058</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Казачкова</surname><given-names>Э. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazachkova</surname><given-names>E. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Казачкова Элла Алексеевна — д. м. н., профессор, профессор кафедры акушерства и гинекологии </p><p>Челябинск</p></bio><bio xml:lang="en"><p>Chelyabinsk</p></bio><email xlink:type="simple">doctorkel@narod.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4512-3421</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Казачков</surname><given-names>Е. Л.</given-names></name><name name-style="western" xml:lang="en"><surname>Kazachkov</surname><given-names>E. L.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Казачков Евгений Леонидович — д. м. н., профессор, заведующий кафедрой патологической анатомии и судебной медицины </p><p>Челябинск</p></bio><bio xml:lang="en"><p>Chelyabinsk</p></bio><email xlink:type="simple">doctorkel@narod.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6327-2685</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шамаева</surname><given-names>Т. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Shamaeva</surname><given-names>T. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Шамаева Татьяна Николаенвна — доцент кафедры математики, медицинской информатики, информатики и статистики, физики, к. п. н., доцент</p><p> Челябинск</p><p> </p></bio><bio xml:lang="en"><p>Chelyabinsk</p></bio><email xlink:type="simple">shamtan@rambler.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вейсенборн</surname><given-names>Е. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Veisenborn</surname><given-names>E. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Вейсенборн Елена Романовна — заведующий женской консультацией </p><p>Челябинск</p></bio><bio xml:lang="en"><p>Chelyabinsk</p></bio><email xlink:type="simple">okb3gk2@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Южно-Уральский государственный медицинский университет» Минздрава России;&#13;
ГБУЗ «Областная клиническая больница № 2»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>South Ural State Medical University;&#13;
Regional Clinical Hospital No. 2</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>ФГБОУ ВО «Южно-Уральский государственный медицинский университет» Минздрава России</institution><country>Россия</country></aff><aff xml:lang="en"><institution>South Ural State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ГАУЗ «Областная клиническая больница № 3»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Regional Clinical Hospital No. 3</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>13</day><month>11</month><year>2025</year></pub-date><volume>24</volume><issue>5</issue><issue-title>ГИНЕКОЛОГИЯ</issue-title><fpage>28</fpage><lpage>41</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Ищенко Л.С., Воропаева Е.Е., Казачкова Э.А., Казачков Е.Л., Шамаева Т.Н., Вейсенборн Е.Р., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Ищенко Л.С., Воропаева Е.Е., Казачкова Э.А., Казачков Е.Л., Шамаева Т.Н., Вейсенборн Е.Р.</copyright-holder><copyright-holder xml:lang="en">Ishchenko L.S., Voropaeva E.E., Kazachkova E.A., Kazachkov E.L., Shamaeva T.N., Veisenborn E.R.</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://docru.elpub.ru/jour/article/view/352">https://docru.elpub.ru/jour/article/view/352</self-uri><abstract><sec><title>Цель</title><p>Цель. Определить клинические и лабораторные особенности COVID-19 различной степени тяжести при беременности.</p></sec><sec><title>Дизайн</title><p>Дизайн. Проспективное когортное исследование.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. В исследование были включены 1476 беременных. В основную группу вошли 1386 пациенток с COVID-19 на различных сроках гестации, поступивших в родильный дом ГБУЗ «Областная клиническая больница № 2» г. Челябинска, перепрофи­лированный в COVID-госпиталь по оказанию медицинской помощи беременным, роженицам и родильницам с COVID-19, а также их новорожденным на территории г. Челябинска и Челябинской области, в период 1-4-й волн пандемии COVID-19. В зависимости от сте­пени тяжести COVID-19 пациентки основной группы были распределены на четыре подгруппы: 1-я подгруппа — беременные с легким течением COVID-19 (n = 482), 2-я подгруппа — женщины со среднетяжелым течением заболевания (n = 718), 3-я подгруппа — пациентки с тяжелым течением COVID-19 (n = 147), 4-я подгруппа — беременные с COVID-19 крайне тяжелой степени (n = 21). Группу сравнения составили 90 женщин, поступивших в родильный дом ГАУЗ «Областная клиническая больница № 3» г. Челябинска с июля 2020 г. по февраль 2021 г. в III триместре гестации.</p></sec><sec><title>Результаты</title><p>Результаты. Ведущими симптомами развития COVID-19 у беременных были лихорадка, общая слабость, сухой кашель с трудно отде­ляемой мокротой и одышка. Статистически значимо чаще при COVID-19 тяжелой и крайне тяжелой степени на момент госпитализации отмечались заложенность и боли в груди, учащенное сердцебиение. На фоне тяжелого и крайне тяжелого течения инфекции, а также в сравнении с группой пациенток без COVID-19 статистически значимо чаще регистрировались лимфоцитопения, гипопротеинемия, высокие уровни палочкоядерных нейтрофилов, аланинаминотрансферазы, аспартатаминотрансферазы (АСТ), лактатдегидрогеназы (ЛДГ), С-реактивного белка, ферритина, прокальцитонина, растворимых фибрин-мономерных комплексов, D-димера.</p></sec><sec><title>Заключение</title><p>Заключение. К клиническим признакам развития у беременных тяжелого и крайне тяжелого течения COVID-19 относятся общая слабость, сухой кашель с трудно отделяемой мокротой, одышка, заложенность и боли в грудной клетке, учащенное сердцебиение. Лабораторными факторами, статистически значимо ассоциированными с прогрессией COVID-19 до крайне тяжелого течения при беременности, являются определяемые на момент госпитализации наиболее высокие уровни АСТ, ЛДГ и гипопротеинемия с наиболее низким уровнем общего белка в сыворотке крови. Полученные сведения позволят оптимизировать прогнозирование развития самой неблагоприятной для бере­менных формы COVID-19 — крайне тяжелого течения инфекции.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. To determine the clinical andlaboratory features of COVID-19 of varying severity during pregnancy.</p></sec><sec><title>Design</title><p>Design. Prospective cohort study.</p></sec><sec><title>Materials and methods</title><p>Materials and methods. The study included 1476 pregnant women. The main group included 1,386 patients with COVID-19 at various stages of gestation, admitted to the maternity hospital of the Regional Clinical Hospital No. 2 in Chelyabinsk, repurposed into a COVID hospital to provide medical care to pregnant women, women inlabor and postpartum women with COVID-19 , as well as their newborns, in the territory of Chelyabinsk and the Chelyabinsk region, during the 1st-4th waves of the COVID-19 pandemic. Depending on the severity of COVID-19, patients of the main group were divided into 4 subgroups: Subgroup 1 — pregnant women with mild COVID-19 (n = 482), Subgroup 2 — women with moderate COVID-19 (n = 718), Subgroup 3 — patients with severe COVID-19 (n = 147), Subgroup 4 — pregnant women with extremely severe COVID-19 (n = 21). The comparison group consisted of 90 women admitted to the maternity hospital of the Regional Clinical Hospital No. 3 in Chelyabinsk from July 2020 to February 2021 in the third trimester of gestation. The comparison group consisted of 90 pregnant women admitted to the maternity hospital of the Regional Clinical Hospital No. 3 in Chelyabinsk from July 2020 to February 2021 in the third trimester of gestation.</p></sec><sec><title>Results</title><p>Results. The leading symptoms of infection in pregnant women with COVID-19 were fever, general weakness, dry cough with difficult-toseparate phlegm, and shortness of breath. Statistically significantly more often in severe and extremely severe COVID-19 at the time of15 hospitalization, chest congestion and pain, and rapid heartbeat were noted. Against the background of severe and extremely severe infection, and in comparison with the group of patients without COVID-19,lymphocytopenia, hypoproteinemia, highlevels of band neutrophils, alanine aminotransferase, aspartate aminotransferase (AST), lactate dehydrogenase (LDH), C-reactive protein, ferritin, procalcitonin, soluble fibrin monomer complexes, and D-dimer were statistically significantly more often recorded.</p></sec><sec><title>Conclusion</title><p>Conclusion. Clinical signs of severe and extremely severe COVID-19 in pregnant women include general weakness, dry cough with difficult-toseparate phlegm, shortness of breath, chest congestion and pain, and rapid heartbeat. Laboratory factors statistically significantly associated with the progression of COVID-19 to extremely severe cases during pregnancy are the highestlevels of AST, LDH, and hypoproteinemia with thelowestlevel of total protein in the blood serum determined at the time of hospitalization. The information obtained will help optimize the prediction of the most unfavorable form of COVID-19 for pregnant women — extremely severe infection.</p></sec><sec><title> </title><p> </p></sec><sec><title> </title><p> </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>беременность</kwd><kwd>новая коронавирусная инфекция</kwd><kwd>COVID-19</kwd><kwd>степень тяжести</kwd><kwd>клинические симптомы</kwd><kwd>лабораторные показатели</kwd></kwd-group><kwd-group xml:lang="en"><kwd>pregnancy</kwd><kwd>new coronavirus infection</kwd><kwd>COVID-19</kwd><kwd>severity</kwd><kwd>clinical symptoms</kwd><kwd>laboratory parameters</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">Белокриницкая Т.Е., Артымук Н.В., Филиппов О.С., Фролова Н.И. Клиническое течение, материнские и перинатальные исходы новой коронавирусной инфекции COVID-19 у беременных Сибири и Дальнего Востока. Акушерство и гинекология. 2021;2:48–54. DOI: 10.18565/aig.2021.2.48-54</mixed-citation><mixed-citation xml:lang="en">Belokrinitskaya T.E., Artymuk N.V., Filippov O.S., Frolova N.I. Clinical course, maternal and perinatal outcomes of 2019 novel coronavirus infectious disease (COVID-19) in pregnant women in Siberia and Far East. Obstetrics and Gynecology. 2021;2:48–54. (in Russian). DOI: 10.18565/aig.2021.2.48-54</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Narang K., Enninga E.A., Gunaratne M.D., Ibirogba E.R. et al. SARSCoV-2 infection and COVID-19 during pregnancy: a multidisciplinary review. Mayo Clin. Proc. 2020;95(8):1750–65. DOI: 10.1016/j.mayocp.2020.05.011</mixed-citation><mixed-citation xml:lang="en">Narang K., Enninga E.A., Gunaratne M.D., Ibirogba E.R. et al. SARSCoV-2 infection and COVID-19 during pregnancy: a multidisciplinary review. Mayo Clin. Proc. 2020;95(8):1750–65. DOI: 10.1016/j.mayocp.2020.05.011</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Villar J., Ariff S., Gunier R.B., Thiruvengadam R. et al. Maternal and neonatal morbidity and mortality among pregnant women with and without COVID-19 infection: the INTERCOVID Multinational Cohort Study. JAMA Pediatr. 2021;175(8):817–26. DOI: 10.1001/jamapediatrics.2021.1050</mixed-citation><mixed-citation xml:lang="en">Villar J., Ariff S., Gunier R.B., Thiruvengadam R. et al. Maternal and neonatal morbidity and mortality among pregnant women with and without COVID-19 infection: the INTERCOVID Multinational Cohort Study. JAMA Pediatr. 2021;175(8):817–26. DOI: 10.1001/jamapediatrics.2021.1050</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Allotey J., Stallings E., Bonet M., Yap M. et al. Clinical manifestations, risk factors, and maternal and perinatal outcomes of coronavirus disease 2019 in pregnancy: living systematic review and meta-analysis. BMJ. 2020;370:m3320. DOI: 10.1136/bmj.m3320</mixed-citation><mixed-citation xml:lang="en">Allotey J., Stallings E., Bonet M., Yap M. et al. Clinical manifestations, risk factors, and maternal and perinatal outcomes of coronavirus disease 2019 in pregnancy: living systematic review and meta-analysis. BMJ. 2020;370:m3320. DOI: 10.1136/bmj.m3320</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Jafari M., Pormohammad A., Sheikh Neshin S.A., Ghorbani S. et al. Clinical characteristics andoutcomes of pregnant women with COVID19 and comparison with control patients: a systematic review and meta-analysis. Rev. Med. Virol. 2021;31(5):1–16. DOI: 10.1002/rmv.2208</mixed-citation><mixed-citation xml:lang="en">Jafari M., Pormohammad A., Sheikh Neshin S.A., Ghorbani S. et al. Clinical characteristics andoutcomes of pregnant women with COVID19 and comparison with control patients: a systematic review and meta-analysis. Rev. Med. Virol. 2021;31(5):1–16. DOI: 10.1002/rmv.2208</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Воропаева Е.Е., Хайдукова Ю.В., Казачкова Э.А., Казачков Е.Л. и др. Клинико-лабораторные особенности и материнские исходы у беременных с критическим поражением легких при COVID-19. Уральский медицинский журнал. 2024;23(1):90–103. DOI: 10.52420/2071-5943-2024-23-1-90-103</mixed-citation><mixed-citation xml:lang="en">Voropaeva E.E., Khaidukova Yu.V., Kazachkova E.A., Kazachkov E.L. et al. Clinical and laboratory features and maternal outcomes in pregnant women with critical lung damage in the COVID-19. Ural Medical Journal. 2024;23(1):90–103. (in Russian). DOI: 10.52420/2071-5943-2024-23-1-90-103</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Smith E.R., Oakley E., Grandner G.W., Ferguson K. et al. Adverse maternal, fetal, and newborn outcomes among pregnant women with SARS-CoV-2 infection: an individual participant data meta-analysis. BMJ Glob. Health. 2023;8(1):e009495. DOI: 10.1136/bmjgh-2022-009495</mixed-citation><mixed-citation xml:lang="en">Smith E.R., Oakley E., Grandner G.W., Ferguson K. et al. Adverse maternal, fetal, and newborn outcomes among pregnant women with SARS-CoV-2 infection: an individual participant data meta-analysis. BMJ Glob. Health. 2023;8(1):e009495. DOI: 10.1136/bmjgh-2022-009495</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Elshafeey F., Magdi R., Hindi N., Elshebiny M. et al. Systematic scoping review of COVID-19 during pregnancy and childbirth. Int. J. Gynaecol. Obstet. 2020;150(1):47–52. DOI:10.1002/ijgo.13182</mixed-citation><mixed-citation xml:lang="en">Elshafeey F., Magdi R., Hindi N., Elshebiny M. et al. Systematic scoping review of COVID-19 during pregnancy and childbirth. Int. J. Gynaecol. Obstet. 2020;150(1):47–52. DOI:10.1002/ijgo.13182</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Shree P., Mittal N., Vishwakarma S., Verma V. et al. Maternal and perinatal outcomes of COVID-19-positive pregnant women. Cureus. 2022;14(6):e26411. DOI: 10.7759/cureus.26411</mixed-citation><mixed-citation xml:lang="en">Shree P., Mittal N., Vishwakarma S., Verma V. et al. Maternal and perinatal outcomes of COVID-19-positive pregnant women. Cureus. 2022;14(6):e26411. DOI: 10.7759/cureus.26411</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Гареева А.И., Мозговая Е.В., Белопольская М.А., Ковальчук А.С. и др. Опыт ведения беременных с тяжелой и крайне тяжелой формами COVID-19. Журнал акушерства и женских болезней. 2022;71(1):11–22. DOI: 10.17816/JOWD72169</mixed-citation><mixed-citation xml:lang="en">Gareyeva A.I., Mozgovaya E.V., Belopolskaya M.A., Kovalchuk A.S. et al. Experience in managing severe and extremely severe COVID-19 in pregnant women. Journal of Obstetrics and Women's Diseases. 2022;71(1):11–22. (in Russian). DOI: 10.17816/JOWD72169</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Ищенко Л.С., Воропаева Е.Е., Хайдукова Ю.В., Казачкова Э.А. и др. Особенности гемостаза у беременных женщин при манифестации новой коронавирусной инфекции COVID-19 в третьем триместре гестации. Южно-Уральский медицинский журнал. 2021;3:60–74.</mixed-citation><mixed-citation xml:lang="en">Ishchenko L.S., Voropaeva E.E., Khaidukova Y.V., Kazachkova E.A. et al. Peculiarities of hemostasis in pregnant women during manifestation of new coronavirus infection COVID-19 in the third trimester of gestation. South Ural Medical Journal. 2021;3:60–74. (in Russian)</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Ищенко Л.С., Воропаева Е.Е., Казачкова Э.А., Казачков Е.Л. и др. Эритропоэтин как предиктор крайне тяжелого течения новой коронавирусной инфекции COVID-19 у беременных женщин. Якутский медицинский журнал. 2024;2:59–63. DOI: 10.25789/YMJ.2024.86.14</mixed-citation><mixed-citation xml:lang="en">Ishchenko L.S., Voropaeva E.E., Kazachkova E.A., Kazachkov E.L. et al. Erythropoietin as a predictor of the extremely severe course of the new coronavirus infection COVID-19 in pregnant women. Yakut Medical Journal. 2024;2:59–63. (in Russian). DOI: 10.25789/YMJ.2024.86.14</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Zhang B., Zhou X., Zhu C., Song Y. et al. Immune phenotyping based on the neutrophil-to-lymphocyte ratio and IgG level predicts disease severity and outcome for patients with COVID-19. Front. Mol. Biosci. 2020;7:157. DOI: 10.3389/fmolb.2020.00157</mixed-citation><mixed-citation xml:lang="en">Zhang B., Zhou X., Zhu C., Song Y. et al. Immune phenotyping based on the neutrophil-to-lymphocyte ratio and IgG level predicts disease severity and outcome for patients with COVID-19. Front. Mol. Biosci. 2020;7:157. DOI: 10.3389/fmolb.2020.00157</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Chen N., Zhou M., Dong X., Qu J. et al. Epidemiological and clinical characteristics of 99 cases of 2019 novel coronavirus pneumonia in Wuhan, China: a descriptive study. Lancet. 2020;395(10223):507–13. DOI: 10.1016/S0140-6736(20)30211-7</mixed-citation><mixed-citation xml:lang="en">Chen N., Zhou M., Dong X., Qu J. et al. Epidemiological and clinical characteristics of 99 cases of 2019 novel coronavirus pneumonia in Wuhan, China: a descriptive study. Lancet. 2020;395(10223):507–13. DOI: 10.1016/S0140-6736(20)30211-7</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Huang C., Wang Y., Li X., Ren L. et al. Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China. Lancet. 2020;395(10223):497–506. DOI: 10.1016/S0140-6736(20)30183-5</mixed-citation><mixed-citation xml:lang="en">Huang C., Wang Y., Li X., Ren L. et al. Clinical features of patients infected with 2019 novel coronavirus in Wuhan, China. Lancet. 2020;395(10223):497–506. DOI: 10.1016/S0140-6736(20)30183-5</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Zhang C., Shi L., Wang F.S. Liver injury in COVID-19: management and challenges. Lancet Gastroenterol. Hepatol. 2020;5(5):428–30. DOI: 10.1016/S2468-1253(20)30057-1</mixed-citation><mixed-citation xml:lang="en">Zhang C., Shi L., Wang F.S. Liver injury in COVID-19: management and challenges. Lancet Gastroenterol. Hepatol. 2020;5(5):428–30. DOI: 10.1016/S2468-1253(20)30057-1</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Xie H., Zhao J., Lian N., Lin S. et al. Clinical characteristics of non-ICU hospitalized patients with coronavirus disease 2019 and liver injury: a retrospective study. Liver Int. 2020;40(6):1321–6. DOI: 10.1111/liv.14449</mixed-citation><mixed-citation xml:lang="en">Xie H., Zhao J., Lian N., Lin S. et al. Clinical characteristics of non-ICU hospitalized patients with coronavirus disease 2019 and liver injury: a retrospective study. Liver Int. 2020;40(6):1321–6. DOI: 10.1111/liv.14449</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Liu D., Li L., Wu X., Zheng D. et al. Pregnancy and perinatal outcomes of women with coronavirus disease (COVID-19) pneumonia: a preliminary analysis. AJR Am. J. Roentgenol. 2020;215(1):127–32. DOI: 10.2214/AJR.20.23072</mixed-citation><mixed-citation xml:lang="en">Liu D., Li L., Wu X., Zheng D. et al. Pregnancy and perinatal outcomes of women with coronavirus disease (COVID-19) pneumonia: a preliminary analysis. AJR Am. J. Roentgenol. 2020;215(1):127–32. DOI: 10.2214/AJR.20.23072</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Turan O., Hakim A., Dashraath P., Jeslyn W.J.L. et al. Clinical characteristics, prognostic factors, and maternal and neonatal outcomes of SARS-CoV-2 infection among hospitalized pregnant women: a systematic review. Int. J. Gynecol. Obstet. 2020;151(1):7–16. DOI: 10.1002/ijgo.13329ijgo.13329</mixed-citation><mixed-citation xml:lang="en">Turan O., Hakim A., Dashraath P., Jeslyn W.J.L. et al. Clinical characteristics, prognostic factors, and maternal and neonatal outcomes of SARS-CoV-2 infection among hospitalized pregnant women: a systematic review. Int. J. Gynecol. Obstet. 2020;151(1):7–16. DOI: 10.1002/ijgo.13329ijgo.13329</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Zhong Y., Cao Y., Zhong X., Peng Z. et al. Immunity and coagulation and fibrinolytic processes may reduce the risk of severe illness in pregnant women with coronavirus disease 2019. Am. J. Obstet. Gynecol. 2021;224(4):393.e1–25. DOI: 10.1016/j.ajog.2020.10.032</mixed-citation><mixed-citation xml:lang="en">Zhong Y., Cao Y., Zhong X., Peng Z. et al. Immunity and coagulation and fibrinolytic processes may reduce the risk of severe illness in pregnant women with coronavirus disease 2019. Am. J. Obstet. Gynecol. 2021;224(4):393.e1–25. DOI: 10.1016/j.ajog.2020.10.032</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Klok F.A., Kruip M.J.H.A., van der Meer N.J.M., Arbous M.S. et al. Incidence of thrombotic complications in critically ill ICU patients with COVID-19. Thromb. Res. 2020;191:145–7. DOI: 10.1016/j.thromres.2020.04.013</mixed-citation><mixed-citation xml:lang="en">Klok F.A., Kruip M.J.H.A., van der Meer N.J.M., Arbous M.S. et al. Incidence of thrombotic complications in critically ill ICU patients with COVID-19. Thromb. Res. 2020;191:145–7. DOI: 10.1016/j.thromres.2020.04.013</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Thachil J., Tang N., Gando S., Falanga A. et al. ISTH interim guidance on recognition and management of coagulopathy in COVID-19. J. Thromb. Haemost. 2020;18(5):1023–6. DOI: 10.1111/jth.14810</mixed-citation><mixed-citation xml:lang="en">Thachil J., Tang N., Gando S., Falanga A. et al. ISTH interim guidance on recognition and management of coagulopathy in COVID-19. J. Thromb. Haemost. 2020;18(5):1023–6. DOI: 10.1111/jth.14810</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Koumoutsea V.E., Vivanti A.J., Shehata N., Benachi A. et al. COVID19 and acute coagulopathy in pregnancy. J. Thromb. Haemost. 2020;18(7):1648–52. DOI: 10.1111/jth.14856</mixed-citation><mixed-citation xml:lang="en">Koumoutsea V.E., Vivanti A.J., Shehata N., Benachi A. et al. COVID19 and acute coagulopathy in pregnancy. J. Thromb. Haemost. 2020;18(7):1648–52. DOI: 10.1111/jth.14856</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Gungor B., Atici A., Baycan O.F., Alici G. et al. Elevated D-dimer levels on admission are associated with severity and increased risk of mortality in COVID-19: a systematic review and meta-analysis. Am. J. Emerg. Med. 2021;39:173–9. DOI: 10.1016/j.ajem.2020.09.018</mixed-citation><mixed-citation xml:lang="en">Gungor B., Atici A., Baycan O.F., Alici G. et al. Elevated D-dimer levels on admission are associated with severity and increased risk of mortality in COVID-19: a systematic review and meta-analysis. Am. J. Emerg. Med. 2021;39:173–9. DOI: 10.1016/j.ajem.2020.09.018</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
