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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">ssmu</journal-id><journal-title-group><journal-title xml:lang="ru">Бюллетень сибирской медицины</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Siberian Medicine</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1682-0363</issn><issn pub-type="epub">1819-3684</issn><publisher><publisher-name>Siberian State Medical University, the Ministry of Healthcare of the Russian Federation</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20538/1682-0363-2025-3-81-88</article-id><article-id custom-type="elpub" pub-id-type="custom">ssmu-6166</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</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL PAPERS</subject></subj-group></article-categories><title-group><article-title>Прогнозирование летального исхода у пациентов с пневмонией, вызванной карбапенем-резистентной Klebsiella pneumoniae, при помощи гематологических индексов</article-title><trans-title-group xml:lang="en"><trans-title>Predicting a fatal outcome in patients with pneumonia caused by carbapenem-resistant Klebsiella pneumoniae by hematological indices</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0368-0473</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Левченко</surname><given-names>К. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Levchenko</surname><given-names>K. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Левченко Кристина Владимировна – ассистент, кафедра фтизиопульмонологии с курсом факультета повышения квалификации и переподготовки.</p><p>246000, Гомель, ул. Ланге, 5</p></bio><bio xml:lang="en"><p>5 Lange St., 246000 Gomel</p></bio><email xlink:type="simple">kristy_levchenko@mail.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/0000-0002-0449-5026</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мицура</surname><given-names>В. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Mitsura</surname><given-names>V. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Мицура Виктор Михайлович – д-р мед. наук, профессор, заместитель директора по научной работе.</p><p>246040, Гомель, ул. Ильича, 290</p></bio><bio xml:lang="en"><p>290 Ilyich St., 246040 Gomel</p></bio><email xlink:type="simple">mitsura_victor@tut.by</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Гомельский государственный медицинский университет</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Gomel State Medical University</institution><country>Belarus</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Республиканский научно-практический центр радиационной медицины и экологии человека</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Republican Research Center for Radiation Medicine and Human Ecology</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>15</day><month>10</month><year>2025</year></pub-date><volume>24</volume><issue>3</issue><fpage>81</fpage><lpage>88</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Левченко К.В., Мицура В.М., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Левченко К.В., Мицура В.М.</copyright-holder><copyright-holder xml:lang="en">Levchenko K.V., Mitsura V.M.</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://bulletin.ssmu.ru/jour/article/view/6166">https://bulletin.ssmu.ru/jour/article/view/6166</self-uri><abstract><sec><title>Цель</title><p>Цель. Определение наиболее значимых показателей для прогнозирования летального исхода у пациентов с пневмонией, вызванной карбапенем-резистентной K. pneumoniae.</p></sec><sec><title>Материалы и методы</title><p>Материалы и методы. Ретроспективно проанализировано 114 случаев пневмонии, вызванной K. pneumoniae, в том числе на фоне коронавирусной инфекцией (COVID-19). В зависимости от исхода заболевания сформировано две группы: группа 1 – 54 пациента, выписанных из стационара по завершении лечения; группа 2 – 60 пациентов с неблагоприятным (летальным) исходом. Отдельно проанализированы пациенты, у которых не выявлено сопутствующей инфекции COVID-19. Изучена структура сопутствующих заболеваний, определены показатели гемограммы, С-реактивного белка (СРБ), а также гематологические индексы: отношение нейтрофилов и лимфоцитов (НЛИ), моноцитов и лимфоцитов (МЛИ), тромбоцитов и лимфоцитов (ТЛИ). Риск летального исхода оценивался по шкале CURB-65.</p></sec><sec><title>Результаты</title><p>Результаты. Для пациентов с неблагоприятным исходом характерны более высокие показатели лейкоцитов в общем анализе крови, нейтрофилов, значения НЛИ, МЛИ, ТЛИ, СРБ, более высокий риск по шкале CURB-65 и низкий уровень лимфоцитов, тромбоцитов. По результатам проведенного ROC-анализа, наиболее значимыми прогностическими показателями неблагоприятного исхода является уровень лимфоцитов, нейтрофилов, НЛИ, показатели CURB-65, СРБ, ТЛИ. Диагностическая значимость шкалы CURB-65 (3–5 баллов) в прогнозировании риска неблагоприятного исхода составляет: чувствительность теста – 47,5%, специфичность – 98,2; положительная прогностическая ценность – 96,6; отрицательная прогностическая ценность – 63,1; точность – 71,7%. Для НЛИ (при пороговом значении более 6) получены следующие данные: по чувствительности (85,0%), специфичности (87,0%), положительной прогностической ценности (87,9%), отрицательной прогностической ценности (83,9%), точности (86,0%). Диагностическая точность для МЛИ составила 79,0%, для ТЛИ – 73,7%.</p></sec><sec><title>Заключение</title><p>Заключение. Предпочтительным показателем, который можно использовать на первом этапе для прогнозирования летального исхода пневмонии, вызванной карбапенем-резистентной K. pneumoniae, следует считать НЛИ (при уровне более 6) ввиду высокой чувствительности (85%) и специфичности (87%), а также простоты применения. В дополнение к этому можно использовать расчет баллов по шкале CURB-65 при значениях 3 балла и выше.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. To determine the most significant indicators for predicting a fatal outcome in patients with pneumonia caused by carbapenem-resistant K. pneumoniae.</p></sec><sec><title>Materials and мethods</title><p>Materials and мethods. A total of 114 cases of pneumonia caused by K. pneumoniae, including those associated with COVID-19, were retrospectively analyzed. Depending on the outcome of the disease, two groups were formed: group 1 included 54 patients discharged from the hospital upon completion of treatment; group 2 encompassed 60 patients with an unfavorable (fatal) outcome. Patients who did not have a concomitant COVID-19 infection were analyzed separately. The profile of concomitant diseases, hemogram parameters, C-reactive protein (CRP) level, and hematological indices (neutrophil-to-lymphocyte ratio (NLR), monocyte-to-lymphocyte ratio (MLR), platelet-to-lymphocyte ratio (PLR)) were studied, and the risk of death according to the CURB-65 score was assessed.</p></sec><sec><title>Results</title><p>Results. Patients with an unfavorable outcome were characterized by higher leukocyte and neutrophil counts, higher NLR, MLR, PLR, and CRP levels, higher risk according to the CURB-65 score, and lower lymphocyte and platelet concentrations. According to the results of the ROC analysis, the most significant prognostic indicators of an unfavorable outcome were lymphocytes, neutrophils, NLR, CURB-65, CRP, and TLR. The diagnostic value of the CURB-65 score (3–5 points) in predicting the risk of an unfavorable outcome was the following: test sensitive ity was 47.5%, specificity was 98.2%, positive predictive value was 96.6%, negative predictive value was 63.1%, accuracy was 71.7%. For NLR (at a threshold value &gt; 6), sensitivity was 85.0%, specificity was 87.0%, positive predictive value was 87.9%, negative predictive value was 83.9%, accuracy was 86.0%. For MLR, the diagnostic accuracy was 79.0%, and for PLR – 73.7%.</p></sec><sec><title>Conclusion</title><p>Conclusion. The parameter of choice that can be used at the early stage to predict the fatal outcome of pneumonia caused by carbapenem-resistant K. pneumoniae should be NLR (&gt; 6) due to its high sensitivity (85%) and specificity (87%) and ease of use. In addition, the CURB-65 score can be used at NLR &gt; 3. </p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>прогнозирование летального исхода</kwd><kwd>карбапенем-резистентная K. pneumoniae</kwd><kwd>COVID-19</kwd><kwd>шкала CURB-65</kwd><kwd>гематологические индексы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>prediction of a fatal outcome</kwd><kwd>carbapenem-resistant Klebsiella pneumoniae</kwd><kwd>COVID-19</kwd><kwd>CURB-65 score</kwd><kwd>hematological indices</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы заявляют об отсутствии финансирования при проведении исследования</funding-statement><funding-statement xml:lang="en">The authors state that they received no funding for the study</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Lee J., Sunny S., Nazarian E., Fornek M., Abdallah V., Episcopia B. еt al. 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