Laboratory Medicine ›› 2025, Vol. 40 ›› Issue (9): 901-906.DOI: 10.3969/j.issn.1673-8640.2025.09.013

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Role of peripheral blood lymphocyte morphological classification in curative effect judgment of critical influenza

WANG Qiuju, XIAO Huijian(), WU Shuang, ZHAO Wanting, DAI Xubo, ZHUANG Yuepeng   

  1. Department of Clinical Laboratory,the 910th Hospital of the Joint Logistics Support Force of the People's Liberation Army of China,Quanzhou 362000,Fujian,China
  • Received:2024-09-02 Revised:2025-02-11 Online:2025-09-30 Published:2025-09-30

Abstract:

Objective To analyze the correlation between peripheral blood lymphocyte morphological classification and lymphocyte subsets,and to investigate its role in the curative effect judgment of critical influenza. Methods From June 2018 to May 2024,142 patients with critical influenza and 126 healthy subjects without influenza infection and with nucleic acid testing negative (control group) admitted to the 910th Hospital of the Joint Logistics Support Force of the People's Liberation Army of China were enrolled. Blood smears were prepared. According to lymphocyte characteristics,lymphocytes were classified into ClassⅠ,Ⅱ and Ⅲ. According to B lymphocyte count,ClassⅠlymphocyte count,T lymphocyte count,ClassⅡ lymphocyte count,natural killer(NK)cell count and ClassⅢ lymphocyte count,they were classified into Group A,Group B and Group C. The differences in various indicators among the groups were compared. Pearson correlation analysis was used to evaluate the correlation between the proportion of peripheral blood lymphocyte classification and flow cytometry. Multivariate Logistic regression analysis was used to assess the risk factors for the conversion of critical influenza. Results Compared with control group,ClassⅡ lymphocyte count in critical influenza group was decreased (P<0.05). ClassⅡand T lymphocyte count in death patients of critical influenza group remained low. The Class Ⅱ and T lymphocyte count in recovered patients of critical influenza group gradually returned to normal. Group A,Group B and Group C showed a positive correlation (r= 0.757,P<0.01). T lymphocyte,ClassⅡ lymphocyte,B lymphocyte,NK cell,ClassⅠlymphocyte and ClassⅢ lymphocyte counts were all risk factors for critical influenza (P<0.05). Conclusions The correlation between lymphocyte morphological classification and lymphocyte subsets is good. In patients with critical influenza,the increase of ClassⅡ lymphocyte count in peripheral blood can indicate improvement of the condition,while low values indicate poor prognosis.

Key words: Lymphocyte, Morphological classification, Lymphocyte subset, Influenza, Critical influenza

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