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Davido B, Jaffal K, Saleh-Mghir A, Vaugier I, Bourlet S, De Truchis P, Annane D. Normalization of eosinophil count is predictive of oxygen weaning over the course of COVID-19 infection among hospitalized adults during the first wave of 2020 pandemic. Front Immunol 2024; 15:1381059. [PMID: 38855100 PMCID: PMC11157028 DOI: 10.3389/fimmu.2024.1381059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 05/07/2024] [Indexed: 06/11/2024] Open
Abstract
Background Understanding COVID-19 outcomes remains a challenge. While numerous biomarkers have been proposed for severity at admission, limited exploration exists for markers during the infection course, especially for the requirement of oxygen therapy. This study investigates the potential of eosinophil count normalization as a predictor for oxygen weaning during the initial wave of the pandemic. Methods A retrospective study was conducted between March and April 2020 (first wave) among adults admitted directly to a medicine ward. Biological abnormalities, including lymphocyte count, eosinophil count, and C-reactive protein (CRP), were gathered daily during the first week of admission according to oxygen level. In case of worsening, oxygen level was censored at 15 L/min. The primary aim was to assess whether eosinophil count normalization predicts a subsequent decrease in oxygen requirements. Results Overall, 132 patients were admitted, with a mean age of 59.0 ± 16.3 years. Of the patients, 72% required oxygen, and 20.5% were admitted to the intensive care unit after a median delay of 48 hours. The median CRP at admission was 79 (26-130) mg/L, whereas the eosinophil count was 10 (0-60)/mm3. Eosinophil count normalization (≥100/mm3) by day 2 correlated significantly with decreased oxygen needs (<2 L) with hazard ratio (HR) = 3.7 [1.1-12.9] (p = 0.04). Likewise, CRP < 80 mg/L was associated with reduced oxygen requirements (p < 0.001). Predictors, including underlying chronic respiratory disease, exhibited a trend toward a negative association (p = 0.06). Conclusion The study highlights the relationship between eosinophil count and CRP, with implications for predicting oxygen weaning during COVID-19. Further research is warranted to explore the relevance of these biomarkers in other respiratory infections.
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Affiliation(s)
- Benjamin Davido
- Maladies Infectieuses, Université Paris-Saclay, Assistance Publique des Hôpitaux de Paris (AP-HP) Hôpital Raymond Poincaré, Garches, France
| | - Karim Jaffal
- Maladies Infectieuses, Université Paris-Saclay, Assistance Publique des Hôpitaux de Paris (AP-HP) Hôpital Raymond Poincaré, Garches, France
| | - Azzam Saleh-Mghir
- Maladies Infectieuses, Université Paris-Saclay, Assistance Publique des Hôpitaux de Paris (AP-HP) Hôpital Raymond Poincaré, Garches, France
| | - Isabelle Vaugier
- Centre d’Investigation Clinique (Inserm CIC 1429), Université Paris-Saclay, Assistance Publique des Hôpitaux de Paris (AP-HP) Hôpital Raymond Poincaré, Garches, France
| | - Stephane Bourlet
- Maladies Infectieuses, Université Paris-Saclay, Assistance Publique des Hôpitaux de Paris (AP-HP) Hôpital Raymond Poincaré, Garches, France
| | - Pierre De Truchis
- Maladies Infectieuses, Université Paris-Saclay, Assistance Publique des Hôpitaux de Paris (AP-HP) Hôpital Raymond Poincaré, Garches, France
| | - Djillali Annane
- Médecine Intensive Réanimation, Université Paris-Saclay, Assistance Publique des Hôpitaux de Paris (AP-HP) Hôpital Raymond Poincaré, Garches, France
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Chen J, Wang Y, Yu H, Wang R, Yu X, Huang H, Ai L, Zhang T, Huang B, Liu M, Ding T, Luo Y, Chen P. Epidemiological and laboratory characteristics of Omicron infection in a general hospital in Guangzhou: a retrospective study. Front Public Health 2023; 11:1289668. [PMID: 38094227 PMCID: PMC10716230 DOI: 10.3389/fpubh.2023.1289668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 11/16/2023] [Indexed: 12/18/2023] Open
Abstract
The COVID-19 pandemic caused by SARS-CoV-2 has emerged as a major global public health concern. In November 2022, Guangzhou experienced a significant outbreak of Omicron. This study presents detailed epidemiological and laboratory data on Omicron infection in a general hospital in Guangzhou between December 1, 2022, and January 31, 2023. Out of the 55,296 individuals tested, 12,346 were found to be positive for Omicron. The highest prevalence of positive cases was observed in the 20 to 39 age group (24.6%), while the lowest was in children aged 0 to 9 years (1.42%). Females had a higher incidence of infection than males, accounting for 56.6% of cases. The peak time of Omicron infection varied across different populations. The viral load was higher in older adults and children infected with Omicron, indicating age-related differences. Spearman's rank correlation analysis revealed positive correlations between Ct values and laboratory parameters in hospitalized patients with Omicron infection. These parameters included CRP (rs = 0.059, p = 0.009), PT (rs = 0.057, p = 0.009), INR (rs = 0.055, p = 0.013), AST (rs = 0.067, p = 0.002), LDH (rs = 0.078, p = 0.001), and BNP (rs = 0.063, p = 0.014). However, EO (Eosinophil, rs = -0.118, p < 0.001), BASO (basophil, rs = -0.093, p < 0.001), and LY (lymphocyte, rs = -0.069, p = 0.001) counts showed negative correlations with Ct values. Although statistically significant, the correlation coefficients between Ct values and these laboratory indices were very low. These findings provide valuable insights into the epidemiology of Omicron infection, including variations in Ct values across gender and age groups. However, caution should be exercised when utilizing Ct values in clinical settings for evaluating Omicron infection.
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Affiliation(s)
- Jingrou Chen
- Department of Laboratory Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yang Wang
- Department of Laboratory Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hongwei Yu
- Department of Radiation Hygiene and Protection, Guangdong Province Prevention and Treatment Center for Occupational Diseases, Guangzhou, China
| | - Ruizhi Wang
- Department of Laboratory Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xuegao Yu
- Department of Laboratory Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Hao Huang
- Department of Laboratory Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Lu Ai
- Department of Laboratory Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Tianruo Zhang
- Department of Medical Laboratory Technology, Medical College of Jiaying University, Meizhou, China
| | - Bin Huang
- Department of Laboratory Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Min Liu
- Department of Laboratory Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Tao Ding
- Department of Immunology and Microbiology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Key Laboratory of Tropical Diseases Control, Ministry of Education, Sun Yat-sen University, Guangzhou, China
| | - Yifeng Luo
- Division of Pulmonary and Critical Care Medicine, Institute of Respiratory Diseases, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Peisong Chen
- Department of Laboratory Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Guest PC, Neyazi A, Braun-Dullaeus RC, Müller P, Schreiber J, Haghikia A, Vasilevska V, Steiner J. A Molecular Biomarker-Based Triage Approach for Targeted Treatment of Post-COVID-19 Syndrome Patients with Persistent Neurological or Neuropsychiatric Symptoms. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2023; 1412:97-115. [PMID: 37378763 DOI: 10.1007/978-3-031-28012-2_5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
Approximately 30% of COVID-19 cases may experience chronic symptoms, known as post-COVID-19 syndrome (PCS). Common PCS symptoms can include fatigue, cognitive impairment, and persistent physical, neurological, and neuropsychiatric complaints. To improve healthcare and management of the current and future pandemics, we highlight the need for establishing interdisciplinary post-viral outpatient clinics comprised of specialists in fields such as psychiatry, psychotherapy, neurology, cardiology, pneumology, and immunology. In this way, PCS patients with a high health burden can receive modern diagnostics and targeted therapeutic recommendations. A key objective is to distinguish the "sick recovered" from the "healthy recovered." Our hypothesis is that there is a PCS subgroup with autoimmune-mediated systemic and brain-vascular dysregulation, which may lead to circulatory disorders, fatigue, cognitive impairment, depression, and anxiety. This can be clarified using a combination of specific antibody diagnostics and precise clinical, psychological, and apparative testing.
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Affiliation(s)
- Paul C Guest
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Brazil
- Laboratory of Translational Psychiatry, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- Department of Psychiatry and Psychotherapy, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Alexandra Neyazi
- Laboratory of Translational Psychiatry, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- Department of Psychiatry and Psychotherapy, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany
| | - Rüdiger C Braun-Dullaeus
- Department of Internal Medicine I, Division of Cardiology, Angiology and Intensive Medical Care, Otto-von-Guericke University, Magdeburg, Germany
| | - Patrick Müller
- Department of Internal Medicine I, Division of Cardiology, Angiology and Intensive Medical Care, Otto-von-Guericke University, Magdeburg, Germany
- German Center for Neurodegenerative Diseases (DZNE), Magdeburg, Germany
- German Center for Mental Health (DZP), Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits Underlying Mental Health (C-I-R-C), Jena-Magdeburg-Halle, Germany
| | - Jens Schreiber
- Department of Pneumology, Otto von Guericke University, Magdeburg, Germany
| | - Aiden Haghikia
- Department of Neurology, Otto-von-Guericke University, Magdeburg, Germany
- Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany
| | - Veronika Vasilevska
- Laboratory of Translational Psychiatry, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
- Department of Psychiatry and Psychotherapy, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Johann Steiner
- Laboratory of Translational Psychiatry, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.
- Department of Psychiatry and Psychotherapy, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.
- German Center for Mental Health (DZP), Center for Intervention and Research on Adaptive and Maladaptive Brain Circuits Underlying Mental Health (C-I-R-C), Jena-Magdeburg-Halle, Germany.
- Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany.
- Center for Health and Medical Prevention (CHaMP), Magdeburg, Germany.
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