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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">jofin</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал инфектологии</journal-title><trans-title-group xml:lang="en"><trans-title>Journal Infectology</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2072-6732</issn><publisher><publisher-name>IPO “АIDSSPbR"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22625/2072-6732-2024-16-3-71-79</article-id><article-id custom-type="elpub" pub-id-type="custom">jofin-1664</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 исследования</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Original Research</subject></subj-group></article-categories><title-group><article-title>Показатели силы дыхательных мышц и оксигенации для прогнозирования длительности госпитализации пациентов с COVID-19</article-title><trans-title-group xml:lang="en"><trans-title>Respiratory muscle strength and oxygenation as predictors of length of hospital stay in patients with COVID-19</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>Панько</surname><given-names>Е. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Pan’ko</surname><given-names>E. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Панько Екатерина Сергеевна – врач</p><p>тел: +375(29)727-66-09 </p><p>Брест </p></bio><bio xml:lang="en"><p> Brest</p></bio><email xlink:type="simple">panko.yekaterina@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>Жаворонок</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zhavoronok</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Жаворонок Сергей Владимирович – профессор кафедры инфекционных болезней, д.м.н.</p><p>тел: +375(29)6553387</p><p>Минск</p></bio><bio xml:lang="en"><p>Minsk </p></bio><email xlink:type="simple">zhavoronok.s@mail.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>Соловчук</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Solovchuk</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Соловчук Александр Михайлович – аспирант кафедры интеллектуальных информационных технологий</p><p>Брест </p></bio><bio xml:lang="en"><p>Brest</p></bio><email xlink:type="simple">solovchuk_aleksandr@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Панько</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Pan’ko</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Панько Сергей Владимирович – заведующий кафедрой анатомии, физиологии и безопасности человека, д.м.н., профессор</p><p>тел.: +375(162)21-70-40 </p><p>Брест </p></bio><bio xml:lang="en"><p>Brest</p></bio><email xlink:type="simple">medicine@brsu.brest.by</email><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Брестская областная клиническая больница</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Brest Regional Clinical Hospital</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Белорусский государственный медицинский университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Belarusian State Medical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Брестский государственный технический университет</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Brest State Technical University</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-4"><aff xml:lang="ru"><institution>Брестский государственный университет им. А.С. Пушкина</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Brest State University named after A.S. Pushkin</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>22</day><month>09</month><year>2024</year></pub-date><volume>16</volume><issue>3</issue><fpage>71</fpage><lpage>79</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Панько Е.С., Жаворонок С.В., Соловчук А.М., Панько С.В., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Панько Е.С., Жаворонок С.В., Соловчук А.М., Панько С.В.</copyright-holder><copyright-holder xml:lang="en">Pan’ko E.S., Zhavoronok S.V., Solovchuk A.M., Pan’ko S.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://journal.niidi.ru/jofin/article/view/1664">https://journal.niidi.ru/jofin/article/view/1664</self-uri><abstract><p>Цель: исследовать возможности применения показателей вентиляции и газообмена для прогнозирования длительности лечения острой фазы COVID-19.Материалы и методы: анализ проведен с использованием базы данных 384 случайно отобранных с декабря 2021 г. по май 2022 г. пациентов в возрасте 61±16 лет с подтвержденным диагнозом острой фазы COVID-19. Кроме стандартных клинико-лабораторных обследований и исследования суррогатного индекса оксигенации (SpO2/FiO2), индекса ROX ((SpO2/FiO2)/частота дыханий), в 1-е сутки (2,2±0,2) выполнялась спирометрия максимального давления вдоха (MIP) и выдоха (MEP) с использованием портативного прибора MicroRPM (CareFusion, UK). После оценки значимости (p&lt;0,05) корреляции между каждым показателем и длительностью госпитализации пациентов мы использовали построение моделей логистической регрессии (STATISTICA 10) с описанием рабочих характеристик (ROC) и определением площади под ними (AUC) для анализа прогностических возможностей показателей силы дыхательных мышц и/или гипоксии.Результаты: наименьшей чувствительностью и специфичностью обладали модели, построенные с использованием показателей силы дыхательных мышц MIP (Ч= 54% и C=70%) и MEP (Ч= 73% и C=47%), а также их комбинации MIP&amp;MEP (Ч= 65%, C=58%). Во всех 3 моделях AUC составили 0,6. Модели, построенные на маркерах гипоксии, обладали большими (p&lt;0,05) классификационными возможностями (AUC 0,7) по сравнению с тремя предыдущими, причем модель с использованием интегрального показателя ROX обладала большей (p&lt;0,05) чувствительностью (Ч=58% и C=78%), а модель с суррогатным индексом оксигенации специфичностью (Ч=48% и C=88%). Комплексная модель, основанная на сочетании 2 интегральных индексах гипоксии, а также маркере силы диафрагмы (SpO2/FiO2 + MIP*ROX+MIP), имела наилучшие показатели чувствительности (67%) и специфичности (84%), а площадь под ROC составила 0,8.Заключение: показатели функции внешнего дыхания с определенными пороговыми значениями силы дыхательных мышц и оксигенации являются подходящими маркерами для построения комплексных моделей и алгоритмов прогнозирования длительности лечения и стратификации госпитализированных пациентов в острую фазу COVID-19.</p></abstract><trans-abstract xml:lang="en"><p>The aim was to analyze the prognostic value of ventilation/ gas exchange dissociation markers to predict the treatment length in patients with the acute phase of COVID-19.Materials and methods: The analysis was performed using a database of 384 randomly selected patients from December 2021 to May 2022 with a confirmed diagnosis of the acute phase of COVID-19, aged 61±16 years. Spirometry of maximal inspiratory pressure (MIP) and maximal expiratory pressure (MEP) was performed on 2,2±0,2 day of hospitalization with a portable MicroRPM device (CareFusion, UK) and measurement of surrogate oxygenation index (SpO2/FiO2), ROX index (SpO2/ FiO2)/respiratory rate) was carried out in all patients. Log-regression models were used (STATISTICA 10) to determine cutoff values for these functional variables and their ability to predict the patients length of hospital stay from the date of examination (≤ 7 vs &gt; 7 days).Results: The lowest sensitivity (SE) and specificity (SP) were shown in models using only the respiratory muscle strength markers MIP (SE=54%, SP=70%) and MEP (SE=73%, SP=47%), that were the same in the combination of MIP and MEP (SE=65%, SP=58%). The areas under ROC were equal to 0.6 in all three models. The models based on hypoxia markers had a higher classification power (AUC 0,7) compared to the previous three, and the sensitivity value was higher in the model using the ROX index (SE = 58% and SP = 78%), but the specificity was better in the surrogate oxygenation index model (SE = 48% and SP = 88%). A complex model based on a combination of the two integral hypoxia indices, as well as a diaphragm strength marker (SpO2/FiO2+MIP*ROX+MIP) had the best sensitivity (67%) and specificity (84%), and the area under ROC reached 0.8.Conclusion: Indicators of respiratory muscle strength and oxygenation are suitable markers for combined models and algorithms for predicting hospital length of stay in COVID-19 patients.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>COVID-19</kwd><kwd>SARS-CoV-2</kwd><kwd>спирометрия</kwd><kwd>максимальное давление вдоха и выдоха</kwd><kwd>слабость дыхательных мышц</kwd><kwd>пульсоксиметрия</kwd><kwd>соотношение SaO 2/FiO2</kwd><kwd>ROX</kwd><kwd>прогнозирование исхода</kwd></kwd-group><kwd-group xml:lang="en"><kwd>COVID-19</kwd><kwd>SARS-CoV-2</kwd><kwd>spirometry</kwd><kwd>maximal respiratory pressures</kwd><kwd>SpO2/FiO2 ratio</kwd><kwd>ROX index</kwd><kwd>predictive model</kwd><kwd>algorithm</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">Yamada G, Hayakawa K, Matsunaga N et al. 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