检验医学 ›› 2020, Vol. 35 ›› Issue (7): 660-662.DOI: 10.3969/j.issn.1673-8640.2020.07.007

• 临床应用研究·论著 • 上一篇    下一篇

平均中性粒细胞体积在重症急性胰腺炎合并菌血症中的应用

林瀚1, 宋颖2, 蔡祺1, 郭平1, 陈骊婷1   

  1. 1.上海交通大学医学院附属瑞金医院检验科,上海 200025
    2.上海市临床检验中心,上海 200126
  • 收稿日期:2019-04-02 出版日期:2020-07-30 发布日期:2020-08-04
  • 作者简介:null

    作者简介:林 瀚,男,1987年生,主管技师,主要从事血细胞分析及形态学检测工作。宋 颖,女,1977年生,硕士,副主任技师,主要从事临床血液学检验工作。
    林瀚与宋颖对本研究具有同等贡献,并列为第一作者。

Application of mean neutrophil volume in severe acute pancreatitis with bacteremia

LIN Han1, SONG Ying2, CAI Qi1, GUO Ping1, CHEN Liting1   

  1. 1. Department of Clinical Laboratory,Ruijin Hospital,Shanghai Jiao Tong University School of Medicine,Shanghai 200025,China
    2. Shanghai Center for Clinical Laboratory,Shanghai 200126,China
  • Received:2019-04-02 Online:2020-07-30 Published:2020-08-04

摘要:

目的 探讨外周血平均中性粒细胞体积(MNV)在重症急性胰腺炎(SAP)合并菌血症中的应用价值。方法 选取SAP患者48例。采集患者入院第1天的外周血标本,检测白细胞(WBC)计数、中性粒细胞绝对数(NEUT#)、MNV、C反应蛋白(CRP)、降钙素原(PCT)并进行血培养,根据血培养结果将患者分为感染组和非感染组。采用受试者工作特征(ROC)曲线评估各项指标诊断SAP合并菌血症的效能。结果 感染组与非感染组CRP和MNV差异有统计学意义(P<0.05),2个组之间WBC、NEUT#、PCT差异均无统计学意义(P>0.05)。ROC曲线分析结果显示,MNV诊断SAP合并菌血症的曲线下面积(AUC)为0.775,敏感性为84.6%,特异性为66.7%,最佳临界值为160.5;CRP的AUC为0.708,敏感性为92.3%,特异性为48.1%,最佳临界值为162.5 mg/L。结论 MNV或可作为SAP合并菌血症的早期辅助诊断指标。

关键词: 平均中性粒细胞体积, 重症急性胰腺炎, 菌血症, C反应蛋白

Abstract:

Objective To investigate the role of mean neutrophil volume(MNV) in severe acute pancreatitis(SAP) with bacteremia. Methods A total of 48 patients with SAP were enolled. Peripheral blood samples were collected at admission. White blood cell(WBC) count,the absolute value of neutrophil(NEUT#),MNV,C-reactive protein(CRP) and procalcitonin(PCT) determinations and blood culturing were performed. According to blood culturing results,the patients were classified into 2 groups,SAP with bacteremia group and SAP without bacteremia group. The efficiency of each parameter was analyzed by receiver operating characteristic(ROC) curve. Results CRP and MNV in the 2 groups had statistical significance(P<0.05). There was no statistical significance in WBC count,NEUT# and PCT between the 2 groups(P>0.05). ROC curve analysis showed that the area under curve(AUC) of MNV was 0.775,the sensitivity was 84.6%,the specificity was 66.7%,and the optimal cut-off value was 160.5. The AUC of CRP was 0.708,the sensitivity was 92.3%,the specificity was 48.1%,and the optimal cut-off value was 162.5 mg/L. Conclusions MNV may be used in the auxiliary diagnosis of SAP with bacteremia.

Key words: Mean neutrophil volume, Severe acute pancreatitis, Bacteremia, C-reactive protein

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