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Cardiovascular involvement and its relationship with the severity of the acute phase and persistent symptoms during recovery from COVID-19 infection

Background: The acute phase of COVID-19 infection is associated with cardiovascular involvement, but there is limited information regarding this relationship in the recovery phase from this disease both in patients with or without persistent symptoms. Objectives: The aims of this study were: 1. To analyze cardiovascular involvement by echocardiography in the recovery phase from COVID-19 disease, and 2. To explore its association with: a) the severity of the acute phase and b) the presence of persistent symptoms. Methods: An analytical, observational, prospective and single-center study was carried out, including consecutive patients attending the center for post-COVID-19 evaluation who underwent a transthoracic color Doppler echocardiogram looking for pathological outcomes. Results: A total of 600 patients were included from September 1, 2020 to May 1, 2021, and 29 of these patients (4.8%) presented pathological findings in the echocardiogram. Patients with moderate or severe acute phase COVID-19 infection had a higher prevalence of wall motion disorders (4.3% vs. 0.5%, p=0.02) and pericardial effusion (4.3% vs. 0.24%, p=0.01) compared with those with asymptomatic or mild symptoms;however, after multivariate adjustment, this association did not reach statistical significance. In 28.6% of cases, patients reported persistent symptoms, with no evident association between their presence and pathological echocardiographic results. Conclusion: The prevalence of cardiovascular involvement evaluated by echocardiography was 4.8% in the recovery phase from COVID-19 disease. Patients with more severe initial clinical presentation exhibited more pathological findings, but the significance was not sustained in the multivariate analysis. Persistent symptoms were not associated with greater cardiovascular involvement. © 2021, Sociedad Argentina de Cardiologia. All rights reserved.