Laboratory features of cardiovascular injury in COVID-19 and other acute respiratory viral infections

Abstract

The article presents data from a study of specific cardiac markers in patients with acute respiratory viral infection (ARVI) or coronavirus disease 2019 (COVID-19). COVID-19 caused by severe acute respiratory syndrome-related coronavirus 2 (SARS-CoV-2) is characterized by cardiovascular injury. However, with other ARVIs, the prevalence of heart involvement is also high and, according to the literature data, is about 20%. At the same time, laboratory characteristics of these lesions have significant differences in ARVI and COVID-19, which necessitates different approaches to therapy.Aim. To determine the most significant markers for the diagnosis of cardiovascular involvement in patients with COVID-19.Material and methods. A total of 60 patients were included in the study: main group (n=30), COVID-19 was laboratory confirmed; comparison group (n=30), other ARVI pathogens were verified. The groups were completely comparable in sex, age and severity of disease course. The average values of troponin, creatine kinase MB, N-terminal pro-brain natriuretic peptide (NT-proBNP) and D-dimer were compared in patients of both groups in the acute disease phase, corresponding from 1 to 8 days from the symptoms’ onset. Data analysis was performed using a two-sided independent samples t-test using SPSS Statistics version 23.Results. The higher levels of troponin-I and D-dimer were significantly more common in the main group. The mean value of creatine kinase MB did not exceed the upper limits of reference values. There were no significant differences in NTproBnP levels between the groups. At the same time, in both groups, its level significantly exceeded the age reference values.Conclusion. The most effective markers of cardiovascular complications in COVID-19 patients should be considered troponin-I, D-dimer and NT-proBNP. Early diagnosis and laboratory monitoring in dynamics is important for the timely detection of cardiac pathology and alteration of therapy regimen.