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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">10.24884/1682-6655-2019-18-4-11-18</article-id><article-id custom-type="elpub" pub-id-type="custom">microcirculation-640</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>Функциональное состояние периферического и микроциркуляторного кровотока у больных с легочной гипертензией на фоне системных заболеваний соединительной ткани</article-title><trans-title-group xml:lang="en"><trans-title>Functional state of peripheral and microcirculatory blood flow in patients with pulmonary hypertension on the background of systemic connective tissue diseases</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Долгова</surname><given-names>Е. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Dolgova</surname><given-names>E. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант отдела новых методов диагностики Института клинической кардиологии им. А. Л. Мясникова</p></bio><bio xml:lang="en"><p>postgraduate student of the of the New Diagnostic Methods Department of the Institute of Clinical Cardiology named A. L. Myasnikov</p></bio><email xlink:type="simple">likeria2@rambler.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Федорович</surname><given-names>А. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Fedorovich</surname><given-names>A. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. мед. наук, старший научный сотрудник Отдела фундаментальных и прикладных аспектов ожирения</p></bio><bio xml:lang="en"><p>Candidate of Medical Sciences, Senior Researcher of the Fundamental and Applied Aspects of Obesity Department the Federal State Institution «National Medical Research Center for Preventive Medicine»</p></bio><email xlink:type="simple">faa-micro@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мартынюк</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Martynyuk</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р мед. наук, руководитель отдела легочной гипертензии и заболеваний сердца Института клинической кардиологии им. А. Л. Мясникова</p></bio><bio xml:lang="en"><p>Doctor of Medical Sciences, Head of the Department of Pulmonary Hypertension and Heart Disease of the Institute of Clinical Cardiology named A. L. Myasnikov</p></bio><email xlink:type="simple">trukhiniv@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рогоза</surname><given-names>А. H.</given-names></name><name name-style="western" xml:lang="en"><surname>Rogoza</surname><given-names>A. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р биол. наук, профессор, руководитель Отдела новых методов диагностики Института клинической кардиологии им. А. Л. Мясникова</p></bio><bio xml:lang="en"><p>Professor, Doctor of Biological Sciences, Head of the New Diagnostic Methods Department of the Institute of Clinical Cardiology named A. L. Myasnikov</p></bio><email xlink:type="simple">anrogoza@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чазова</surname><given-names>И. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Chazova</surname><given-names>I. Ye.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р мед. наук, профессор, академик РАН, руководитель отдела гипертонии, директор Института клинической кардиологии им. А. Л. Мясникова</p></bio><bio xml:lang="en"><p>Academician of the Russian Academy of Sciences, Professor, Doctor of Medical Sciences, Director Institute of Clinical Cardiology named A. L. Myasnikov</p></bio><email xlink:type="simple">chazova@hotmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Федеральное государственное бюджетное учреждение «Национальный медицинский исследовательский центр кардиологии » Министерства здравоохранения Российской Федерации</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National medical research center of cardiology</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>30</day><month>12</month><year>2019</year></pub-date><volume>18</volume><issue>4</issue><fpage>11</fpage><lpage>18</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Долгова Е.В., Федорович А.А., Мартынюк Т.В., Рогоза А.H., Чазова И.Е., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Долгова Е.В., Федорович А.А., Мартынюк Т.В., Рогоза А.H., Чазова И.Е.</copyright-holder><copyright-holder xml:lang="en">Dolgova E.V., Fedorovich A.A., Martynyuk T.V., Rogoza A.N., Chazova I.Y.</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/640">https://www.microcirc.ru/jour/article/view/640</self-uri><abstract><sec><title>Цель</title><p>Цель. Изучить функциональное состояние периферического и микроциркуляторного кровотока у больных с легочной гипертензией, ассоциированной с системными заболеваниями соединительной ткани (ЛАГ-СЗСТ).</p></sec><sec><title>Материал и методы</title><p>Материал и методы. В исследование вошли 22 пациентов (50,1±14,7 года) с ЛАГ-СЗСТ I–III функционального класса. 18 пациентов имели системную склеродермию, 3 – системную красную волчанку, и 1 пациент страдал ревматоидным артритом. Группу контроля (ГК) составили 25 здоровых добровольцев (39,3±10 года). Исследования проводили методами пальцевой фотоплетизмографии (ФПГ), лазерной допплеровской флоуметрии (ЛДФ) и капилляроскопии (КС).</p></sec><sec><title>Результаты</title><p>Результаты. По данным ФПГ, пациенты ЛАГ-СЗСТ относительно ГК имеют более низкие значения индекса окклюзии по амплитуде 1,51±0,37 и 2,28±0,46 соответственно (&lt;0,05). По данным ЛДФ, у пациентов ЛАГ-СЗСТ отмечаются признаки венулярного полнокровия, что проявляется увеличением амплитуды респираторно обусловленных колебаний кровотока до 0,17±0,11 против 0,13±0,07 в ГК (&lt;0,05), увеличение констрикторной реакции при холодовой пробе – 56,4±16,8 и 42,1±17,9 % (&lt;0,05) и пробе с венозной окклюзией – 56,8±18,7 и 45,2±17,9 % (&lt;0,05) соответственно. По данным КС, пациенты с ЛАГ-СЗСТ имеют выраженное увеличение степени гидратации интерстициального пространства, что проявляется в увеличении размера перикапиллярной зоны до 160,8±37,3 относительно 114,1±17,4 мкм в ГК (&lt;0,00001).</p></sec><sec><title>Выводы</title><p>Выводы. У пациентов с ЛАГ-СЗСТ в патологический процесс вовлекаются все регуляторные механизмы и структурные компоненты микрососудов, включая эндотелиальные и гладкомышечные клетки. Это проявляется повышением констрикторной активности на все виды сосудосуживающих стимулов и нарушением фильтрационно-реабсорбционного механизма обмена веществ.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. To study the functional state of peripheral and microcirculatory blood flow in patients with pulmonary hypertension associated with systemic connective tissue diseases (PH-SCTD).</p></sec><sec><title>Material and methods</title><p>Material and methods. The study included 22 patients (50,1±14,7) with PH-SCTD I–III functional class. 18 patients had systemic scleroderma, 3 – systemic lupus erythematosus, and 1 patient suffered from rheumatoid arthritis. The control group (CG) comprised 25 healthy volunteers (39,3±10). The studies were performed using finger photoplethysmography (FPG), laser Doppler flowmetry (LDF), and capillaroscopy (CS).</p></sec><sec><title>Results</title><p>Results. According to the FPG data, patients with PH-SCTD relative to CG have lower values of occlusion index in the amplitude of 1,51±0,37 and 2,28±0,46 respectively (&lt;0.05). According to LDF data, signs of venular plethora are observed in patients with PH-SCTD, which is manifested by an increase in the amplitude of respiratory-induced fluctuations in blood flow to 0,17±0,11 (PU) versus 0,13±0,07 (PU) in CG (&lt;0.05), an increase in the constrictor reaction in the cold test was 56,4±16,8 % and 42,1±17,9 % (&lt;0.05) and a venous occlusion test was 56,8±18,7 % and 45,2±17,9 % (&lt;0.05), respectively. According to CS data, patients with PH-SCTD have a noticeable increase in the degree of hydration of the interstitial space, which manifests itself in an increase in the size of the pericapillary space to 160,8±37,3 μm against 114,1±17,4 μm in the CG (&lt;0.00001).</p></sec><sec><title>Conclusions</title><p>Conclusions. In patients with PH-SCTD, all regulatory mechanisms and structural components of microvessels, including endothelial and smooth muscle cells, are involved in the pathological process, which is manifested by an increase in the constrictor activity for all types of stimuli and a violation of the filtration-reabsorption mechanism of metabolism.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>системные заболевания соединительной ткани</kwd><kwd>легочная гипертензия</kwd><kwd>микроциркуляция</kwd><kwd>вазомоции</kwd><kwd>фотоплетизмография</kwd><kwd>лазерная допплеровская флоуметрия</kwd><kwd>капилляроскопия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>systemic connective tissue diseases</kwd><kwd>pulmonary hypertension</kwd><kwd>microcirculation</kwd><kwd>vasomotions</kwd><kwd>photoplethysmography</kwd><kwd>laser Doppler flowmetry</kwd><kwd>capillaroscopy</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">Чазова И. 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