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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">medalphabet</journal-id><journal-title-group><journal-title xml:lang="ru">Медицинский алфавит</journal-title><trans-title-group xml:lang="en"><trans-title>Medical alphabet</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2078-5631</issn><issn pub-type="epub">2949-2807</issn><publisher><publisher-name>ООО «Альфмед»</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.33667/2078-5631-2021-30-12-18</article-id><article-id custom-type="elpub" pub-id-type="custom">medalphabet-2292</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>СОВРЕМЕННАЯ ЛАБОРАТОРИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MODERN LABORATORY</subject></subj-group></article-categories><title-group><article-title>Диагностическая значимость новых гематологических показателей при коронавирусной инфекции</article-title><trans-title-group xml:lang="en"><trans-title>Diagnostic signifcance of new hematological parameters in coronavirus infection</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6188-1548</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Барановская</surname><given-names>И. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Baranovskaya</surname><given-names>I. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Барановская Ирина Борисовна, к. б. н., биолог</p><p>г. Краснодар</p></bio><bio xml:lang="en"><p>Baranovskaya Irina B., PhD Bio Sci, biologist</p><p>Krasnodar</p></bio><email xlink:type="simple">irina.baranovskay@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/0000-0002-0430-0241</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сысоева</surname><given-names>И. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Sysoeva</surname><given-names>I. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Сысоева Ирина Петровна, биолог, зав. клинико-диагностической лабораторией</p><p>г. Краснодар</p></bio><bio xml:lang="en"><p>Sysoeva Irina. P., biologist, head of Clinical Diagnostic Laboratory</p><p>Krasnodar</p></bio><email xlink:type="simple">sysoeva_ip@maii.tu</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ГБУЗ «Краевая клиническая больница № 2» Минздрава Краснодарского края</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Regional Clinical Hospital No. 2</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>01</day><month>12</month><year>2021</year></pub-date><volume>1</volume><issue>30</issue><issue-title>Современная лаборатория (2)</issue-title><fpage>12</fpage><lpage>18</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Барановская И.Б., Сысоева И.П., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Барановская И.Б., Сысоева И.П.</copyright-holder><copyright-holder xml:lang="en">Baranovskaya I.B., Sysoeva I.P.</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.med-alphabet.com/jour/article/view/2292">https://www.med-alphabet.com/jour/article/view/2292</self-uri><abstract><p>Бактериальное инфицирование и, как следствие, сепсис являются грозным осложнением у пациентов с новой коронавирусной инфекцией и одним из ведущих факторов летальности в стационаре. В условиях пандемии COVID-19 экономические затраты здравоохранения на биохимический мониторинг значительно возросли. Назрела необходимость нового подхода к анализу и, возможно, структурированию результатов рутинных исследований, получаемых посредством общего анализа крови. Цель работы: оценка диагностических возможностей новых гематологических показателей «NEUT-RI – реактивность нейтрофилов» и «NEUT-GI – гранулярность нейтрофилов», получаемых при помощи гематологического анализатора Sysmex XN, с позиций диагностики сепсиса. Были проанализированы лабораторные данные выборки пациентов с коронавирусной инфекцией (n = 449). В дальнейшем генеральную статистическую совокупность разделили на две группы по уровню прокальцитонина – PCT (cut off = 0,5 нг/мл). При PCT ниже 0,5 нг/мл считали наличие сепсиса маловероятным, при PCT более 0,5 нг/мл – высоковероятным событием. Для математической обработки данных использовали традиционный статистический анализ, ROC-анализ и авторский вероятностный подход. Согласно полученным данным, при PCT ниже 0,5 нг/мл имеет место корреляция средней силы между С-реактивным белком и прокальцитонином (r = 0,49, p &lt; 0,05). В диапазоне высоких концентраций прокальцитонина (PCT выше 0,5 нг/мл) математическая связь между аналогичными биохимическими маркерами утрачивается. Установлено отсутствие информативной ценности лактатдегидрогеназы в плане диагностики сепсиса. В соответствии с результатами исследований значение показателя NEUT-RI ≥ 56,9 Fl c вероятностью 72 % (специфичность 62,0%, чувствительность 83,5%) свидетельствует о наличии сепсиса. Рассчитана вероятность альтернативного прогноза (наличия и отсутствия сепсиса) в том или ином интервале значения показателей NEUT-RI и NEUT-GI. Выделены узкие количественные диапазоны параметра NEUT-RI, в которых вероятность сепсиса отсутствует – 0 % (35–45 Fl) и очень высока – 77 % (65–75 Fl).</p></abstract><trans-abstract xml:lang="en"><p>Bacterial infection, and as a result, sepsis is a formidable complication in patients with new coronavirus infection, and one of the leading factors in hospital mortality. In the context of the COVID-19 pandemic, the economic costs of health care for biochemical monitoring have increased signifcantly. There is a need for a new approach to the analysis and, possibly, structuring of the results of routine studies obtained through a general blood test. The aim of the work is to assess the diagnostic capabilities of the new hematological parameters NEUT-RI – neutrophil reactivity and NEUT-GI – neutrophil granularity obtained using the Sysmex XN hematological analyzer from the standpoint of sepsis diagnostics. We analyzed laboratory data from a sample of patients with coronavirus infection (n = 449). Subsequently, the general statistical population was divided into two groups according to the level of procalcitonin – PCT (cut off = 0.5 ng/ml). With PCT &lt; 0.5 ng/ml, the presence of sepsis was considered as ‘unlikely’, with PCT &gt; 0.5 ng/ml as ‘highly likely’ event. For mathematical data processing, traditional statistical analysis, ROC analysis and the author’s ‘probabilistic approach’ were used. According to the data obtained, at PCT &lt; 0.5 ng/ml, there is a correlation of average strength between C-reactive protein and procalcitonin (r = 0.49, p &lt; 0.05). In the range of high concentrations of procalcitonin (PCT &gt; 0.5 ng/ml), the mathematical relationship between similar biochemical markers is lost. The absence of the informative value of lactate dehydrogenase in terms of the diagnosis of sepsis has been established. According to the research results, NEUT-RI ≥ 56.9 Fl with a probability of 72% (specifcity 62.0%, sensitivity 83.5%) indicates the presence of sepsis. The probability of an alternative prognosis (presence or absence of sepsis) in one or another interval of the NEUT-RI and NEUT-GI values was calculated. The narrow quantitative ranges of the NEUT-RI parameter were identifed, in which the probability of sepsis is absent – 0% (35–45 Fl) and very high – 77% (65–75 Fl).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>коронавирусная инфекция</kwd><kwd>сепсис</kwd><kwd>гематологические показатели</kwd><kwd>реактивность нейтрофилов</kwd><kwd>гранулярность нейтрофилов</kwd><kwd>прокальцитонин</kwd><kwd>С-реактивный белок</kwd></kwd-group><kwd-group xml:lang="en"><kwd>coronavirus infection</kwd><kwd>sepsis</kwd><kwd>hematological parameters</kwd><kwd>neutrophil reactivity</kwd><kwd>neutrophil granularity</kwd><kwd>procalcitonin</kwd><kwd>C-reactive protein</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">Koozia Н., Lengquistab М., Frigyesi А. C-reactive protein as a prognostic factor in intensive care admissions for sepsis: A Swedish multicenter study. 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