Clinical significance of serum interleukin 6 in elderly patients infected with severe acute respiratory syndrome coronavirus 2 omicron variant and its correlation with underlying diseases.
Academic Journal of Naval Medical University
; 43(9):1037-1043, 2022.
Artículo
en Chino
| EMBASE | ID: covidwho-20234987
ABSTRACT
Objective To investigate the clinical significance of serum interleukin 6 (IL-6) in elderly patients infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) omicron variant and its correlation with underlying diseases. Methods A total of 22 elderly patients (80 years old) infected with omicron variant, who were admitted to Department of Infectious Diseases, The First Affiliated Hospital of Naval Medical University (Second Military Medical University) from Apr. to Jun. 2022 and tested positive for SARS-CoV-2 RNA, were included. The level of serum IL-6 was measured by flow cytometry, and the level of serum C reactive protein (CRP) was measured by immunonephelometry. Patients were divided into pneumonia group (16 cases) and non-pneumonia group (6 cases) according to the imaging examination results, and were divided into severe group (severe and critical type, 5 cases) and non-severe group (mild and normal type, 17 cases) according to the condition. Binary logistic regression model and receiver operating characteristic (ROC) curve were used to analyze the correlation between serum IL-6 and CRP levels and the severity of the disease and whether it would progress to pneumonia. Meanwhile, the relationships between underlying diseases and serum IL-6 level were explored. Results Among the 22 patients, 6 were mild, 11 were normal, 3 were severe, and 2 were critical. The baseline serum IL-6 level in the pneumonia group was significantly higher than that in the non-pneumonia group (20.16+/-12.36pg/mL vs 5.42+/-1.57 pg/mL, P=0.009), and there was no significant difference in baseline serum CRP level between the 2 groups (P0.05). There were no significant differences in baseline serum IL-6 or CRP levels between the severe group and the non-severe group (both P0.05). Logistic regression analysis showed that the baseline serum IL-6 and CRP might be related to pneumonia after infection with omicron variant (odds ratio OR=2.407, 95% confidence interval CI0.915-6.328;OR=1.030, 95% CI 0.952-1.114). ROC curve analysis showed that the area under curve values of serum IL-6 and CRP in predicting the progression to pneumonia were 0.969 (95% CI 0.900-1.000) and 0.656 (95% CI 0.380-0.932), respectively, with statistical significance (Z=2.154, P=0.030). There were no significant differences in the baseline serum IL-6 level or proportions of severe patients or pneumonia patients among patients with or without hypertension, diabetes mellitus, coronary heart disease, chronic kidney disease or chronic obstructive pulmonary disease (all P0.05). The baseline serum IL-6 levels of the omicron variant infected elderly patients with 1, 2, and 3 or more underlying diseases were 12.50 (9.15, 21.75), 23.55 (9.63, 50.10), and 10.90 (5.20, 18.88) pg/mL, respectively, with no statistical significance (P0.05). Conclusion For omicron variant infected patients, serum IL-6 level is significantly increased in patients with pneumonia manifestations and is correlated with disease progression. Serum IL-6 level is of great guiding significance to judge disease progression and evaluate efficacy and prognosis of elderly coronavirus disease 2019 patients.Copyright © 2022, Second Military Medical University Press. All rights reserved.
aged 80 years over; coronavirus disease 2019; interleukin 6; omicron variant; severe acute respiratory syndrome coronavirus 2; underlying diseases; aged; article; chronic kidney failure; chronic obstructive lung disease; clinical significance; controlled study; coronavirus disease 2019/di [Diagnosis]; diabetes mellitus; diagnostic procedure; diagnostic test accuracy study; disease exacerbation; disease severity; flow cytometry; human; hypertension; ischemic heart disease; pneumonia; prognosis; receiver operating characteristic; SARS-CoV-2 Omicron; very elderly; C reactive protein/ec [Endogenous Compound]; interleukin 6/ec [Endogenous Compound]; immunonephelometry
Texto completo:
Disponible
Colección:
Bases de datos de organismos internacionales
Base de datos:
EMBASE
Tipo de estudio:
Estudio experimental
/
Estudio pronóstico
/
Ensayo controlado aleatorizado
Tópicos:
Variantes
Idioma:
Chino
Revista:
Academic Journal of Naval Medical University
Año:
2022
Tipo del documento:
Artículo
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