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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">Almanac of Clinical Medicine</journal-id><journal-title-group><journal-title xml:lang="en">Almanac of Clinical Medicine</journal-title><trans-title-group xml:lang="ru"><trans-title>Альманах клинической медицины</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2072-0505</issn><issn publication-format="electronic">2587-9294</issn><publisher><publisher-name xml:lang="en">Moscow Regional Research and Clinical Institute (MONIKI)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">1705</article-id><article-id pub-id-type="doi">10.18786/2072-0505-2022-50-023</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>CLINICAL CASES</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>КЛИНИЧЕСКИЕ НАБЛЮДЕНИЯ</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">The favorable outcome of subsequent pregnancy in a patient with a history of obstetric atypical hemolytic uremic syndrome</article-title><trans-title-group xml:lang="ru"><trans-title>Благоприятный исход повторной беременности у пациентки с акушерским атипичным гемолитико-уремическим синдромом в анамнезе</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7686-9816</contrib-id><name-alternatives><name xml:lang="en"><surname>Prokopenko</surname><given-names>Elena I.</given-names></name><name xml:lang="ru"><surname>Прокопенко</surname><given-names>Елена Ивановна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Senior Research Fellow, Surgical Department of Kidney Transplantation; Professor, Chair of Transplantology, Nephrology and Artificial Organs, Postgraduate Training Faculty<sup>1</sup>; Nephrologist, Scientific Advisory Department<sup>2</sup></p></bio><bio xml:lang="ru"><p>д-р мед. наук, ст. науч. сотр. хирургического отделения трансплантации почки, профессор кафедры трансплантологии, нефрологии и искусственных органов факультета усовершенствования врачей<sup>1</sup>; врач-нефролог научно-консультативного отделения<sup>2</sup></p></bio><email>renalnephron@gmail.com</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-3150-2655</contrib-id><name-alternatives><name xml:lang="en"><surname>Guryeva</surname><given-names>Vera M.</given-names></name><name xml:lang="ru"><surname>Гурьева</surname><given-names>Вера Маратовна</given-names></name></name-alternatives><address><country country="RU">Russian Federation</country></address><bio xml:lang="en"><p>MD, PhD, Leading Research Fellow, Obstetric Physiological Department</p></bio><bio xml:lang="ru"><p>д-р мед. наук, вед. науч. сотр. акушерского физиологического отделения</p></bio><email>helgin99@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Moscow Regional Research and Clinical Institute (MONIKI)</institution></aff><aff><institution xml:lang="ru">ГБУЗ МО «Московский областной научно-исследовательский клинический институт им. М.Ф. Владимирского»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Moscow Regional Research Institute of Obstetrics and Gynecology</institution></aff><aff><institution xml:lang="ru">ГБУЗ МО «Московский областной научно-исследовательский институт акушерства и гинекологии»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-07-22" publication-format="electronic"><day>22</day><month>07</month><year>2022</year></pub-date><volume>50</volume><issue>2</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>133</fpage><lpage>138</lpage><history><date date-type="received" iso-8601-date="2022-07-09"><day>09</day><month>07</month><year>2022</year></date><date date-type="accepted" iso-8601-date="2022-07-19"><day>19</day><month>07</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Prokopenko E.I., Guryeva V.M.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, Прокопенко Е.И., Гурьева В.М.</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="en">Prokopenko E.I., Guryeva V.M.</copyright-holder><copyright-holder xml:lang="ru">Прокопенко Е.И., Гурьева В.М.</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-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://almclinmed.ru/jour/article/view/1705">https://almclinmed.ru/jour/article/view/1705</self-uri><abstract xml:lang="en"><p>Atypical hemolytic uremic syndrome (aHUS) is a severe life-threatening disease associated with uncontrolled activation of alternative complement pathway. Obstetric aHUS, which develops in pregnant women and puerperas, is characterized by a particularly severe course with multiple organ failure, high death risk and end-stage renal disease. The prognosis of patients with obstetric aHUS has changed dramatically after the introduction of eculizumab, a monoclonal antibody to C5 complement component, into clinical practice. With timely initiation of the complement blocking therapy, the patients would not only survive, but also completely restore the function of the affected organs. Naturally, the question arises on the possibility of repeated pregnancies in women with previous obstetric aHUS and on the strategy of pregnancy management.</p> <p>The paper describes a clinical case of successful treatment with eculizumab for obstetric aHUS in the third trimester of the first pregnancy in a young and previously healthy woman, and the management of her second pregnancy. A 23-year old woman at 35-36 weeks of her first pregnancy developed the clinical picture of obstetric thrombotic microangiopathy, which was interpreted as a manifestation of severe preeclampsia and HELLP syndrome. However, after an emergency surgical delivery, the patient's condition continued to deteriorate despite the plasma exchange procedure. After exclusion of the other causes of thrombotic microangiopathy, aHUS was diagnosed and treatment with eculizumab was started, which resulted in complete recovery. No aHUS-associated mutations were identified. The complement inhibitor treatment was discontinued after 12 months. Four years after the first birth, the patient had a second pregnancy after preconception planning. During pregnancy, the patient was closely monitored for a timely identification of potential complications and had prevention of placental complications with acetylsalicylic acid and low molecular weight heparin. No aHUS recurrence and/or other complications were observed, and the patient did not require treatment with eculizumab during pregnancy. Elective caesarean section was performed at 39 week of gestation. A healthy boy was born with a bodyweight of 3370 g, a height of 50 cm, and Apgar score 8-9.</p> <p>In women with obstetric aHUS history, a favorable outcome of repeated pregnancies is possible, in some cases even without any prophylactic use of complement-blocking therapy, provided that with complete remission of aHUS has been achieved, with close monitoring during gestation and prevention of placenta-associated complications.</p></abstract><trans-abstract xml:lang="ru"><p>Атипичный гемолитико-уремический синдром (аГУС) представляет собой тяжелое, угрожающее жизни заболевание, связанное с неконтролируемой активацией альтернативного пути комплемента. Акушерский аГУС, развивающийся у беременных и родильниц, отличается особенно тяжелым течением с развитием полиорганной недостаточности, высоким риском летального исхода и терминальной хронической почечной недостаточности. Прогноз пациенток с акушерским аГУС кардинальным образом изменился в благоприятную сторону после введения в клиническую практику экулизумаба – препарата моноклональных антител к C5-компоненту комплемента: на фоне своевременно начатого применения комплемент-блокирующей терапии пациентки не только выживают, но и полностью восстанавливают функцию пораженных органов. Закономерно возникает вопрос о возможности повторной беременности у женщин, перенесших акушерский аГУС, и тактике ведения такой беременности.</p> <p>В статье описывается клиническое наблюдение, представляющее опыт успешного лечения экулизумабом акушерского аГУС, развившегося в третьем триместре первой беременности у молодой ранее здоровой женщины, и ведения повторной беременности у этой же пациентки. У беременной 23 лет при сроке 35–36 недель первой беременности развилась клиническая картина акушерской тромботической микроангиопатии, которая была расценена как проявление тяжелой преэклампсии, HELLP-синдрома. Однако после экстренного оперативного родоразрешения состояние пациентки продолжало ухудшаться, несмотря на проведение плазмообмена. После исключения других причин акушерской тромботической микроангиопатии был диагностирован аГУС и начато лечение экулизумабом, которое привело к полному выздоровлению. Мутаций, ответственных за развитие аГУС, у пациентки не выявлено, комплемент-блокирующая терапия была прекращена через 12 месяцев после ее начала. Через 4 года после первых родов у пациентки после планирования наступила повторная беременность. В период гестации осуществлялось тщательное наблюдение с целью своевременного выявления возможных осложнений, а также профилактика плацентарных осложнений с помощью ацетилсалициловой кислоты и низкомолекулярного гепарина. Рецидивов аГУС и других осложнений не наблюдалось, применения экулизумаба во время беременности не потребовалось. Беременность завершилась плановым кесаревым сечением при сроке гестации 39 недель. Родился здоровый мальчик с массой 3370 г, ростом 50 см, оценкой по шкале Апгар 8–9 баллов.</p> <p>У женщин, перенесших акушерский аГУС, благоприятный исход повторных беременностей возможен, в ряде случаев – даже без профилактического использования комплемент-блокирующей терапии, при условии ремиссии заболевания, тщательного наблюдения в период гестации и профилактики осложнений, ассоциированных с плацентой.</p></trans-abstract><kwd-group xml:lang="en"><kwd>obstetric atypical hemolytic uremic syndrome</kwd><kwd>eculizumab</kwd><kwd>subsequent pregnancy</kwd><kwd>preeclampsia prevention</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>акушерский атипичный гемолитико-уремический синдром</kwd><kwd>экулизумаб</kwd><kwd>повторная беременность</kwd><kwd>профилактика преэклампсии</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Yan K, Desai K, Gullapalli L, Druyts E, Balijepalli C. 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