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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">medbio</journal-id><journal-title-group><journal-title xml:lang="ru">Медико-биологические проблемы жизнедеятельности</journal-title><trans-title-group xml:lang="en"><trans-title>Medical and Biological Problems of Life Activity</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2074-2088</issn><publisher><publisher-name>Республиканский научно-практический центр радиационной медицины и экологии человека</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.58708/2074-2088.2025-1(33)-89-94</article-id><article-id custom-type="elpub" pub-id-type="custom">medbio-428</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>КЛИНИЧЕСКАЯ МЕДИЦИНА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL MEDICINE</subject></subj-group></article-categories><title-group><article-title>Прогнозирование летального исхода у пациентов с пневмонией, вызванной карбапенемрезистентной Klebsiella pneumoniae</article-title><trans-title-group xml:lang="en"><trans-title>Prediction of fatal outcome in patients with pneumonia caused by carbapenem-resistant Klebsiella pneumoniae</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>Кристина Владимировна Левченко, ассистент</p><p>кафедра фтизиопульмонологии с курсом ФПКиП</p><p>Гомель</p></bio><bio xml:lang="en"><p>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>Виктор Михайлович Мицура, д. м. н., профессор, заместитель директора по научной работе</p><p>Гомель</p></bio><bio xml:lang="en"><p>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>УО «Гомельский государственный медицинский университет»</institution></aff><aff xml:lang="en"><institution>Gomel State Medical University Educational Institution</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>УО «Гомельский государственный медицинский университет»; ГУ «РНПЦ радиационной медицины и экологии человека»</institution></aff><aff xml:lang="en"><institution>Gomel State Medical University Educational Institution; State Institution "Russian Scientific Research Center for Radiation Medicine and Human Ecology"</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>27</day><month>04</month><year>2025</year></pub-date><volume>0</volume><issue>1</issue><fpage>89</fpage><lpage>94</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://medbio.ejournal.by/jour/article/view/428">https://medbio.ejournal.by/jour/article/view/428</self-uri><abstract><p>   Пневмония, вызванная карбапенемрезистентной K. pneumoniae, нередко имеет тяжёлое течение и значительный риск неблагоприятного исхода. Для своевременной оценки состояния пациента и выявления высокого риска неблагоприятного исхода предложены различные шкалы и индексы. Для лечащего врача важным является простота примененияи прогностическая точность используемого при оценке индекса.</p><p>   Целью исследования являлась оценка диагностической значимости клинических и лабораторных параметров для прогнозирования летального исхода у пациентов с пневмонией, вызванной карбапенемрезистентной K. pneumoniae.</p><p>   Ретроспективно проанализирован 71 случай пневмонии, вызванной K. pneumoniae с множественной и экстремальной лекарственной устойчивостью. Были сформированы две группы пациентов в зависимости от исхода: группа 1 — 41 пациент, выписанный из стационара по завершении лечения; группа 2 — 30 пациентов с летальным исходом. Проанализирована структура сопутствующих заболеваний, индекс массы тела (ИМТ), сатурация крови (SpO2), показатели гемограммы, С-реактивный белок (СРБ). Установлено, что для пациентов с летальным исходом характерны более высокие показатели лейкоцитов, нейтрофилов в гемограмме, отношение нейтрофилы/лимфоциты (НЛИ), СРБ, ИМТ; более низкие показатели лимфоцитов, SpO2. Наиболее значимыми прогностическими показателями неблагоприятного исхода являются лимфоциты, нейтрофилы, НЛИ, ИМТ. Для прогнозирования риска летального исхода нами предложен индекс (ИМТ*НЛИ)/SpO2. Проведён ROC-анализ: значения AUC равнялись 0,99 (0,93–1,00), чувствительность теста — 100,0 %, специфичность — 97,6 % при точке разделения &gt; 1,53, индекс Юдена — 0,98. Диагностическая значимость индекса (ИМТ*НЛИ)/SpO2 (при пороговом значении &gt; 1,53): чувствительность теста — 100,0 %, специфичность — 95,1 %, положительная прогностическая ценность — 93,8 %, отрицательная прогностическая ценность — 100,0 %, точность — 97,2 процента. Предлагаемый индекс (ИМТ*НЛИ)/SpO2 (при уровне &gt; 1,53) является индексом, который может быть предпочтительным для прогнозирования летального исхода пневмонии, вызванной карбапенемрезистентной K. pneumoniae, ввиду высокой чувствительности (100 %) и специфичности (97,6 %), а также простоты применения.</p></abstract><trans-abstract xml:lang="en"><p>   Pneumonia caused by carbapenem-resistant K. pneumoniae often has a severe course and a significant risk of unfavorable outcome. Various scales and indices have been proposed for timely assessment of the patient's condition and detection of a high risk of unfavorable outcome. For the attending physician, the ease of use and prognostic accuracy of the index used in the assessment are important.</p><p>   The aim of the study was to evaluate the diagnostic significance of clinical and laboratory parameters for predicting a fatal outcome in patients with pneumonia caused by carbapenem-resistant K. pneumoniae.</p><p>   A total of 71 cases of pneumonia caused by K. pneumoniae with multiple and extreme drug resistance were retrospectively analyzed. Two groups of patients were formed depending on the outcome: group 1 – 41 patients discharged from the hospital upon completion of treatment; group 2 – 30 patients with a fatal outcome. The structure of concomitant diseases, body mass index (BMI), blood saturation (SpO2), hemogram parameters, C-reactive protein (CRP) were analyzed. It was found that patients with a fatal outcome were characterized by higher leukocyte counts, neutrophils in the hemogram, neutrophil/lymphocyte ratio (NLR), CRP, BMI; lower lymphocyte counts, SpO2. The most significant prognostic indicators of an unfavorable outcome are lymphocytes, neutrophils, NLR, BMI. To predict the risk of death, we proposed the index (BMI*NLR)/SpO2. ROC analysis was performed: the AUC was 0,99 (0,93–1,00), test sensitivity 100,0 %, specificity 97,6 % at a cutoff point of &gt; 1,53, Youden index 0,98. Diagnostic value of the index (BMI*NLR)/SpO2 (at a threshold value &gt; 1,53): test sensitivity is 100,0 %, specificity is 95,1 %, positive predictive value is 93,8 %, negative predictive value is 100,0 %, accuracy is 97,2 %. The proposed index (BMI*NLR)/SpO2 (at a level &gt; 1,53) may be preferable for predicting a fatal outcome of pneumonia caused by carbapenem-resistant K. pneumoniae, due to its high sensitivity (100 %) and specificity (97,6 %), as well as ease of use.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>прогнозирование летального исхода</kwd><kwd>нейтрофильно-лимфоцитарный индекс (НЛИ)</kwd><kwd>карбапенемрезистентная K. pneumoniae</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fatal outcome prediction</kwd><kwd>neutrophil-lymphocyte ratio (NLR)</kwd><kwd>carbapenem-resistant K. pneumoniae</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">Molecular epidemiology and antimicrobial resistance profiles of Klebsiella pneumoniae isolates from hospitalized patients in different regions of China / Y. Li, C. Xie, Z. Zhang [et al.] // Front. Cell. Infect. 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