Journal
EUROPEAN HEART JOURNAL
Volume 42, Issue 23, Pages 2270-2279Publisher
OXFORD UNIV PRESS
DOI: 10.1093/eurheartj/ehaa1103
Keywords
C-reactive protein; Coronavirus; COVID-19; Critical illness; Inflammation; Mortality
Categories
Funding
- New York University (NYU) CTSA from the National Center for Advancing Translational Sciences [UL1TR001445]
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Elevated CRP levels upon hospital admission in COVID-19 patients are associated with increased risks of VTE, AKI, critical illness, and mortality, suggesting a crucial role of systemic inflammation in the clinical course of COVID-19.
Background A systemic inflammatory response is observed in coronavirus disease 2019 (COVID-19). Elevated serum levels of C-reactive protein (CRP), a marker of systemic inflammation, are associated with severe disease in bacterial or viral infections. We aimed to explore associations between CRP concentration at initial hospital presentation and clinical outcomes in patients with COVID-19. Methods and results Consecutive adults aged >= 18 years with COVID-19 admitted to a large New York healthcare system between 1 March and 8 April 2020 were identified. Patients with measurement of CRP were included. Venous thrombo-embolism (VTE), acute kidney injury (AKI), critical illness, and in-hospital mortality were determined for all patients. Among 2782 patients hospitalized with COVID-19, 2601 (93.5%) had a CRP measurement [median 108 mg/L, interquartile range (IQR) 53-169]. CRP concentrations above the median value were associated with VTE [8.3% vs. 3.4%; adjusted odds ratio (aOR) 2.33, 95% confidence interval (CI) 1.61-3.36], AKI (43.0% vs. 28.4%; aOR 2.11, 95% CI 1.76-2.52), critical illness (47.6% vs. 25.9%; aOR 2.83, 95% CI 2.37-3.37), and mortality (32.2% vs. 17.8%; aOR 2.59, 95% CI 2.11-3.18), compared with CRP below the median. A dose response was observed between CRP concentration and adverse outcomes. While the associations between CRP and adverse outcomes were consistent among patients with low and high D-dimer levels, patients with high D-dimer and high CRP have the greatest risk of adverse outcomes. Conclusions Systemic inflammation, as measured by CRP, is strongly associated with VTE, AKI, critical illness, and mortality in COVID-19. CRP-based approaches to risk stratification and treatment should be tested.
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