Vasse Marc, Sukhachev Dmitry, Ballester Marie-Christine, Delcominette Frédérique, Mellot François, Habarou Florence, Védrenne Aurélie, Jolly Emilie, Sukhacheva Elena, Farfour Eric, Pascreau Tiffany
Service de Biologie Clinique, Hôpital Foch, Suresnes, France.
UMRS 1176, Hôpital du Kremlin-Bicêtre, Le Kremlin-Bicêtre, France.
Inform Med Unlocked. 2023;38:101207. doi: 10.1016/j.imu.2023.101207. Epub 2023 Mar 8.
Beckman Coulter hematology analysers identify leukocytes by their volume (V), conductivity (C) and scatter (S) of a laser beam at different angles. Each leukocyte sub-population [neutrophils (NE), lymphocytes (LY), monocytes (MO)] is characterized by the mean (MN) and the standard deviation (SD) of 7 measurements called "cellular population data" (@CPD), corresponding to morphological analysis of the leukocytes. As severe forms of infections to SARS-CoV-2 are characterized by a functional activation of mononuclear cells, leading to a cytokine storm, we evaluated whether CPD variations are correlated to the inflammation state, oxygen requirement and lung damage and whether CPD analysis could be useful for a triage of patients with COVID-19 in the Emergency Department (ED) and could help to identify patients with a high risk of worsening.
The CPD of 825 consecutive patients with proven COVID-19 presenting to the ED were recorded and compared to classical biochemical parameters, the need for hospitalization in the ward or ICU, the need for oxygen, or lung injury on CT-scan.
40 of the 42 CPD were significantly modified in COVID-19 patients in comparison to 245 controls. @MN-V-MO and @SD-V-MO were highly correlated with C-reactive protein, procalcitonin, ferritin and D-dimers. SD-UMALS-LY > 21.45 and > 23.92 identified, respectively, patients with critical lung injuries (>75%) and requiring tracheal intubation. @SD-V-MO > 25.03 and @SD-V-NE > 19.4 identified patients required immediate ICU admission, whereas a @MN-V-MO < 183 suggested that the patient could be immediately discharged. Using logistic regression, the combination of 8 CPD with platelet and basophil counts and the existence of diabetes or obesity could identify patients requiring ICU after a first stay in conventional wards (area under the curve = 0.843).
CPD analysis constitutes an easy and inexpensive tool for triage and prognosis of COVID-19 patients in the ED.
贝克曼库尔特血液分析仪通过白细胞的体积(V)、电导率(C)以及激光束在不同角度的散射(S)来识别白细胞。每个白细胞亚群[中性粒细胞(NE)、淋巴细胞(LY)、单核细胞(MO)]都由7项测量值的平均值(MN)和标准差(SD)来表征,这7项测量值被称为“细胞群体数据”(@CPD),与白细胞的形态学分析相对应。由于严重的新型冠状病毒2型(SARS-CoV-2)感染以单核细胞的功能激活为特征,进而导致细胞因子风暴,我们评估了CPD变化是否与炎症状态、氧需求和肺损伤相关,以及CPD分析对于急诊科(ED)中2019冠状病毒病(COVID-19)患者的分诊是否有用,是否有助于识别病情恶化风险高的患者。
记录了825例连续到急诊科就诊且确诊为COVID-19患者的CPD,并与经典生化参数、在病房或重症监护病房(ICU)住院的需求、氧需求或CT扫描显示的肺损伤情况进行比较。
与245名对照相比,42项CPD中的40项在COVID-19患者中发生了显著改变。@MN-V-MO和@SD-V-MO与C反应蛋白、降钙素原、铁蛋白和D-二聚体高度相关。SD-UMALS-LY > 21.45和> 23.92分别识别出有严重肺损伤(>75%)和需要气管插管的患者。@SD-V-MO > 25.03和@SD-V-NE > 19.4识别出需要立即入住ICU的患者,而@MN-V-MO < 183表明患者可以立即出院。使用逻辑回归分析,8项CPD与血小板和嗜碱性粒细胞计数以及糖尿病或肥胖的存在相结合,可以识别出在首次入住普通病房后需要入住ICU的患者(曲线下面积 = 0.843)。
CPD分析是一种用于急诊科COVID-19患者分诊和预后评估的简便且低成本的工具。