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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">actabiomedica</journal-id><journal-title-group><journal-title xml:lang="ru">Acta Biomedica Scientifica</journal-title><trans-title-group xml:lang="en"><trans-title>Acta Biomedica Scientifica</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2541-9420</issn><issn pub-type="epub">2587-9596</issn><publisher><publisher-name>Scientific Centre for Family Health and Human Reproduction Problems</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29413/ABS.2025-10.6.8</article-id><article-id custom-type="elpub" pub-id-type="custom">actabiomedica-5739</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>КАРДИОЛОГИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CARDIOLOGY</subject></subj-group></article-categories><title-group><article-title>Нефизиологическая синусовая тахикардия, выявленная во время беременности (описание клинического случая)</article-title><trans-title-group xml:lang="en"><trans-title>Inappropriate sinus tachycardia presented during pregnancy (clinical case)</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9069-3570</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Енисеева</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Eniseeva</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Енисеева Елена Сергеевна – кандидат медицинских наук, доцент кафедры кардиологии и функциональной диагностики Иркутской государственной медицинской академии последипломного образования – филиала ФГБОУ ДПО РМАНПО Минздрава России; доцент кафедры госпитальной терапии ФГБОУ ВО «Иркутский государственный медицинский университет»</p><p>664049, г. Иркутск, микрорайон Юбилейный,100; 664003, г. Иркутск, ул. Красного Восстания, 1</p></bio><bio xml:lang="en"><p>Elena S. Eniseeva – Cand. Sc. (Med.), Associate professor of the Department of Cardiology and Functional Diagnostics of Irkutsk State Medical Academy of Postgraduate Education – Branch of Russian Medical Academy of Continuing Professional Education; Associate Professor of the Department of Hospital Therapy of Irkutsk State Medical University</p><p>Yubileyny, 100, Irkutsk 664049; Krasnogo Vosstaniya str., 1, Irkutsk 664003</p></bio><email xlink:type="simple">eniseeva-irk@yandex.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/0000-0002-6516-3180</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Протасов</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Protasov</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Протасов Константин Викторович – доктор медицинских наук, профессор, заведующий кафедрой кардиологии и функциональной диагностики </p><p>664049, г. Иркутск, микрорайон Юбилейный,100</p></bio><bio xml:lang="en"><p>Konstantin V. Protasov – Dr. Sc. (Med.), Professor, Head of the Department of Cardiology and Functional Diagnostics </p><p>Yubileyny, 100, Irkutsk 664049</p></bio><email xlink:type="simple">k.v.protasov@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0155-676X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Федоришина</surname><given-names>О. B.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedorishina</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Федоришина Ольга Васильевна – кандидат медицинских наук, доцент кафедры кардиологии и функциональной диагностики </p><p>664049, г. Иркутск, микрорайон Юбилейный,100</p></bio><bio xml:lang="en"><p>Olga V. Fedorishina – Cand. Sc. (Med.), Associate professor of the Department of Cardiology and Functional Diagnostics</p><p>Yubileyny, 100, Irkutsk 664049</p></bio><email xlink:type="simple">olff@mail.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/0000-0002-5047-1893</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Власюк</surname><given-names>Т. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Vlasyuk</surname><given-names>T. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Власюк Татьяна Петровна – врач-кардиолог кардиологического отделения с палатой реанимации и интенсивной терапии для больных с ОКС </p><p>664049, г. Иркутск, микрорайон Юбилейный,100</p></bio><bio xml:lang="en"><p>Tatiana P. Vlasyuk – Cardiologist of Cardiology department with ICU for patients with ACS  </p><p>Yubileyny, 100, Irkutsk 664049</p></bio><email xlink:type="simple">VlasyukTatiana2015@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4890-5197</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Храмцова</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Khramtsova</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Храмцова Наталья Анатольевна – доктор медицинских наук, доцент, профессор кафедры терапии Иркутской государственной медицинской академии последипломного образования – филиала ФГБОУ ДПО РМАНПО; заведующая кардиологическим отделением с палатой реанимации и интенсивной терапии для больных с ОКС ГБУЗ «Иркутская ордена «Знак почета» областная клиническая больница»</p><p>664049, г. Иркутск, микрорайон Юбилейный,100</p></bio><bio xml:lang="en"><p>Natalia A. Khramtsova –. Dr. Sc. (Med.), Professor of Irkutsk State Medical Academy of Postgraduate Education – Branch of Russian Medical Academy of Continuing Professional Education; Head of the Cardiology department with ICU for patients with ACS of Irkutsk Order “Badge of Honor” Regional Clinical Hospital</p><p>Yubileyny, 100, Irkutsk 664049</p></bio><email xlink:type="simple">khramtsova_na@mail.ru</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Иркутская государственная медицинская академия последипломного образования – филиал ФГБОУ ДПО РМАНПО Минздрава России; &#13;
ФГБОУ ВО «Иркутский государственный медицинский университет» Минздрава России</institution></aff><aff xml:lang="en"><institution>Irkutsk State Medical Academy of Postgraduate Education Branch of Russian Medical Academy of Continuing Professional Education; &#13;
Irkutsk State Medical University</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Иркутская государственная медицинская академия последипломного образования – филиал ФГБОУ ДПО РМАНПО Минздрава России</institution></aff><aff xml:lang="en"><institution>Irkutsk State Medical Academy of Postgraduate Education Branch of Russian Medical Academy of Continuing Professional Education</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>ГБУЗ «Иркутская ордена «Знак почёта» областная клиническая больница»</institution></aff><aff xml:lang="en"><institution>Irkutsk Regional Clinical Hospital</institution></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Иркутская государственная медицинская академия последипломного образования – филиал ФГБОУ ДПО РМАНПО Минздрава России; &#13;
ГБУЗ «Иркутская ордена «Знак почёта» областная клиническая больница»</institution></aff><aff xml:lang="en"><institution>Irkutsk State Medical Academy of Postgraduate Education Branch of Russian Medical Academy of Continuing Professional Education; &#13;
Irkutsk Regional Clinical Hospital</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>14</day><month>01</month><year>2026</year></pub-date><volume>10</volume><issue>6</issue><fpage>68</fpage><lpage>75</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Енисеева Е.С., Протасов К.В., Федоришина О.B., Власюк Т.П., Храмцова Н.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Енисеева Е.С., Протасов К.В., Федоришина О.B., Власюк Т.П., Храмцова Н.А.</copyright-holder><copyright-holder xml:lang="en">Eniseeva E.S., Protasov K.V., Fedorishina O.V., Vlasyuk T.P., Khramtsova N.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.actabiomedica.ru/jour/article/view/5739">https://www.actabiomedica.ru/jour/article/view/5739</self-uri><abstract><p>Нефизиологическая синусовая тахикардия (НСТ) — это необъяснимая видимыми физиологическими и вторичными причинами синусовая тахикардия с частотой сердечных сокращений в покое более 100 в 1 мин. Истинная распространенность НСТ неизвестна. При этом НСТ, по-видимому, нередко встречается при нормально протекающей беременности, что вызывает существенные затруднения в дифференциальной диагностике и тактике ведения пациентов. Практика постановки диагноза НСТ в России отсутствует. При анализе литературы не выявлено описаний клинических случаев НСТ у беременных в отечественных изданиях и обнаружено лишь одно сообщение о НСТ в обзорной статье.</p><p>Вработепредставленклиническийслучай НСТу 33-летнейженщинывтретьем триместре беременности. У пациентки выявлена синусовая тахикардия с частотой 180 в мин., сопровождавшаяся жалобами на одышку, слабость, сердцебиение. При холтеровском мониторировании сердечного ритма синусовая тахикардия регистрировалась как в дневные, так и в ночные часы. Проведен дифференциальный диагноз с пароксизмальной реципрокной синусовой тахикардией и синдромом постуральной ортостатической тахикардии. Исключены другие возможные причины синусовой тахикардии. Установлен диагноз НСТ. Наличие беременности ограничивало возможности медикаментозной терапии. На фоне приема метопролола сукцината 25 мг отмечался незначительный эффект по снижению частоты сердечных сокращений до 120 в мин. На сроке 38 недель проведено родоразрешение путем кесарева сечения. В ходе динамического наблюдения через 4 месяца после родов отмечено уменьшение тахикардии до 100 в мин, что требует продолжения наблюдения. Особенностями представленного клинического случая является описанная впервые чрезвычайно высокая для синусового ритма ЧСС (180 в 1 мин.) и сохраняющаяся умеренная синусовая тахикардия через 4 месяца после родов.</p></abstract><trans-abstract xml:lang="en"><p>Inappropriate sinus tachycardia (IST) is a sinus tachycardia unexplained by visible physiological and secondary causes with a resting heart rate of more than 100 beats per minute. The true prevalence of IST is unknown. At the same time, IST seems to be common in normal pregnancies, which causes significant difficulties in differential diagnosis and patient management. There is no practice of diagnosing IST in Russia. An analysis of the literature revealed no descriptions of clinical cases of IST in pregnant women in Russian publications and found only one report of IST in the review article.</p><p>The paper presents a clinical case of IST in a 33-year-old woman in the third trimester of pregnancy. The patient had sinus tachycardia with a heart rate of 180 beats per minute, accompanied by complaints of shortness of breath, weakness, and palpitations. During Holter monitoring, sinus tachycardia was recorded during both daytime and nighttime hours. A differential diagnosis with paroxysmal reciprocal sinus tachycardia and postural orthostatic tachycardia syndrome was performed. Other potential causes of sinus tachycardia were ruled out. The diagnosis of HCT has been established. Therapeutic options were limited due to pregnancy. Administration of metoprolol succinate at a dose of 25 mg produced only a modest reduction in heart rate to 120 beats per minute. At 38 weeks of gestation, delivery was performed via cesarean section. During dynamic follow-up 4 months after delivery, a decrease in tachycardia to 100 beats per minute was noted, which requires continued monitoring.</p><p>The features of the presented clinical case are the extremely high heart rate for the sinus rhythm described for the first time (180 beats per minute) and persistent moderate sinus tachycardia 4 months after delivery.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>синусовая тахикардия</kwd><kwd>беременность</kwd><kwd>неадекватная синусовая тахикардия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>sinus tachycardia</kwd><kwd>pregnancy</kwd><kwd>inappropriate sinus tachycardia</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">Codvelle MM, Boucher H. Tachycardie sinusale permanente a haute frequence sans troubles functionells. 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