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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">microcirculation</journal-id><journal-title-group><journal-title xml:lang="ru">Регионарное кровообращение и микроциркуляция</journal-title><trans-title-group xml:lang="en"><trans-title>Regional blood circulation and microcirculation</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-6655</issn><issn pub-type="epub">2712-9756</issn><publisher><publisher-name>Academician I.P. Pavlov First St. Petersburg State Medical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.24884/1682-6655-2025-24-2-35-42</article-id><article-id custom-type="elpub" pub-id-type="custom">microcirculation-1420</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 (КЛИНИЧЕСКИЕ ИССЛЕДОВАНИЯ)</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES (CLINICAL INVESTIGATIONS)</subject></subj-group></article-categories><title-group><article-title>Устойчивость параметров суточной вариабельности сердечного ритма как паттерн функционального состояния немодифицируемых факторов ее формирования</article-title><trans-title-group xml:lang="en"><trans-title>Stability of Parameters of Daily Heart Rate Variability as a Pattern of the Functional State of Unmodifiable Factors of its Formation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7581-5867</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Новиков</surname><given-names>И. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Novikov</surname><given-names>I. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Новиков Илья Игоревич – слушатель ординатуры по специальности «терапия»</p><p>194044, Санкт-Петербург, ул. Академика Лебедева, д. 6</p></bio><bio xml:lang="en"><p>Novikov Ilya I. – Residency Student in the Specialty «Therapy»</p><p>6, Academica Lebedeva str., Saint Petersburg, 194044</p></bio><email xlink:type="simple">iinow2000@gmail.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/0000-0002-7797-5952</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кицышин</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Kitsyshin</surname><given-names>V. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кицышин Виктор Петрович – д-р мед. наук, профессор 1-й кафедры и клиники (терапии усовершенствования врачей) имени академика Н. С. Молчанова</p><p>194044, Санкт-Петербург, ул. Академика Лебедева, д. 6</p></bio><bio xml:lang="en"><p>Kitsyshin Viktor P. – Dr. Sci. (Med.), Professor, Academician Molchanov 1st Department and Clinic (Advanced Medical Training Therapy)</p><p>6, Academica Lebedeva str., Saint Petersburg, 194044</p></bio><email xlink:type="simple">viktor.kitsyshin@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/0000-0003-1851-0941</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Салухов</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Salukhov</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Салухов Владимир Владимирович – д-р мед. наук, профессор, начальник 1-й кафедры и клиники (терапии усовершенствования врачей) имени академика Н. С. Молчанова</p><p>194044, Санкт-Петербург, ул. Академика Лебедева, д. 6</p></bio><bio xml:lang="en"><p>Salukhov Vladimir V. – Dr. Sci. (Med.), Professor, Head, Academician Molchanov 1st Department and Clinic (Advanced Medical Training Therapy)</p><p>6, Academica Lebedeva str., Saint Petersburg, 194044</p></bio><email xlink:type="simple">vlasaluk@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/0009-0001-8413-0069</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Суржиков</surname><given-names>П. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Surzhikov</surname><given-names>P. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Суржиков Павел Владимирович – канд. мед. наук, преподаватель 1-й кафедры (терапии усовершенствования врачей) имени академика Н. С. Молчанова</p><p>194044, Санкт-Петербург, ул. Академика Лебедева, д. 6</p></bio><bio xml:lang="en"><p>Surzhikov Pavel V., Cand. (PhD) Sc. (Med.), Lecturer, Academician Molchanov 1st Department and Clinic (Advanced Medical Training Therapy)</p><p>6, Academica Lebedeva str., Saint Petersburg, 194044</p></bio><email xlink:type="simple">vmeda_70@mil.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное военное образовательное учреждение высшего образования «Военно-медицинская академия имени С. М. Кирова» Министерства обороны Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Military Medical Academy</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>09</day><month>07</month><year>2025</year></pub-date><volume>24</volume><issue>2</issue><fpage>35</fpage><lpage>42</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Новиков И.И., Кицышин В.П., Салухов В.В., Суржиков П.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Новиков И.И., Кицышин В.П., Салухов В.В., Суржиков П.В.</copyright-holder><copyright-holder xml:lang="en">Novikov I.I., Kitsyshin V.P., Salukhov V.V., Surzhikov P.V.</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.microcirc.ru/jour/article/view/1420">https://www.microcirc.ru/jour/article/view/1420</self-uri><abstract><p>Введение. В вариабельности сердечного ритма (ВСР) вследствие ритмически протекающих процессов прослеживаются устойчивые циклические колебания, которые к настоящему времени широко регистрируются в технологиях длительного мониторинга сердечного ритма. Представляется интересным, возможно ли применение данных ВСР, полученных методом холтеровского мониторирования (ХМ) ЭКГ, для оценки немодифицируемого индивидуального состояния сердечной реактивности. Цель. Поиск доказательств наличия в стандартных условиях поведения человека устойчивого паттерна вариабельности сердечного ритма на протяжении суток, обусловленного набором стойких рефлексий, индивидуально сформированных в процессе онтогенеза. Материалы и методы. В исследование включено 20 практически здоровых лиц мужского пола полузакрытого коллектива в возрасте 18–19 лет, которым проводилось суточное ХМ ЭКГ. Обследуемые были распределены на 2 группы с одинаковой средней частотой сердечных сокращений (ЧСС) за сутки (n=10): группа 1 – лица с высокой ВСР и группа 2 – лица с низкой ВСР. Изучаемые параметры ВСР анализировались двукратно с интервалом между исследованиями 4 года. Результаты. При схожих значениях среднего R-R-интервала за сутки разница числовых параметров ВСР между группами сохранялась как в начале, так и в конце исследования. Показатели ВСР (SDNN, SDANN, rMSSD, pNN50) были стабильно выше в группе 1 (p&lt;0,01). Спектральный анализ выявил значимо более высокие уровни LF и HF у лиц с высокой ВСР (p&lt;0,01), тогда как VLF преобладал в группе 2 (p&lt;0,01). Внутригрупповые показатели ВСР не продемонстрировали статистически значимых различий с течением времени – SDNN (p1 =0,06, p2 =0,11), SDANN (p1 =0,06, p2 =0,17), rMSSD (p1 =0,06, p2 =0,07) и pNN50 (p1 =0,14, p2 =0,09), это позволяет выдвинуть предположение о существовании стойких во времени паттернов ВСР. Установлены признаки достоверного снижения общей мощности показателей ВСР (р&lt;0,05) у обследованных лиц в генеральной выборке (n=20) за исследуемый период (50 месяцев) при отсутствии изменения параметров средних значений ЧСС и индекса LF/HF (1,4–1,5, p=0,08), что исключает изменение вегетативного баланса как причину снижения ВСР. Заключение. Полученные результаты свидетельствуют в пользу существования устойчивого паттерна ВСР наряду со снижением реактивности системы с течением времени из-за изменения функционального состояния сосудистого рецепторного поля.</p></abstract><trans-abstract xml:lang="en"><p>Introduction. Heart rate variability (HRV) due to rhythmically occurring processes exhibits stable cyclical fluctuations, which are now widely recorded in long-term heart rate monitoring technologies. It seems interesting whether it is possible to use HRV data obtained by Holter monitoring (HM) of ECG to assess the non-modifiable individual state of cardiac reactivity. Aim. Search for evidence of the presence, under standard conditions of human behavior, of a stable pattern of heart rate variability throughout the day, caused by a set of stable reflections, individually formed during the process of ontogenesis. Materials and methods. The study included 20 practically healthy male subjects of a semi-closed group aged 18–19 years, who underwent daily HM ECG. The subjects were divided into 2 groups with the same average heart rate (HR) per day (n=10): group 1 – subjects with high HRV and group 2 – subjects with low HRV. The studied HRV parameters were analyzed twice with an interval of 4 years between studies. Results. Despite similar 24-hour mean RR interval values between groups, significant differences in HRV parameters persisted both at baseline and study end. HRV indices (SDNN, SDANN, rMSSD, pNN50) remained consistently higher in Group 1 (p &lt; 0.01). Intragroup HRV parameters showed no statistically significant temporal variations: SDNN (p₁=0.06, p₂=0.11),  SDANN (p₁=0.06, p₂=0.17), rMSSD (p₁=0.06, p₂=0.07), and pNN50 (p₁=0.14, p₂=0.09), suggesting the existence of persistent HRV patterns over time. The general study population (n=20) demonstrated significant reduction in total HRV power (p &lt;0.05) during the 50-month observation period, while maintaining stable heart rate values and LF/HF ratio (1.4–1.5, p=0.08). These findings exclude autonomic balance alterations as the cause of HRV decline. Conclusions. The obtained results indicate the existence of a stable HRV pattern along with a decrease in the reactivity of the system over time due to changes in the functional state of the vascular receptor field.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>электрокардиограмма</kwd><kwd>холтеровское мониторирование ЭКГ</kwd><kwd>вариабельность сердечного ритма</kwd><kwd>частота сердечных сокращений</kwd><kwd>вегетативная нервная система</kwd></kwd-group><kwd-group xml:lang="en"><kwd>electrocardiogram</kwd><kwd>ECG holter monitoring</kwd><kwd>heart rate variability</kwd><kwd>heart rate</kwd><kwd>autonomic nervous system</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">Tiwari R, Kumar R, Malik S, et al. Analysis of Heart Rate Variability and Implication of Different Factors on Heart Rate Variability. 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