The prognostic value of echocardiographic findings in prediction of in-hospital mortality of COVID-19 patients

Introduction: The correlation between echocardiographic findings and the outcome of COVID-19 patients is still under debate. Objective: In the present study it has been endeavored to evaluate the cardiovascular condition of COVID-19 patients using echocardiography and to assess the association of these findings with in-hospital mortality. Methods: In this retrospective cohort study, hospitalized COVID-19 patients from February to July 2020 with at least one echocardiogram were included. Data were extracted from patients’ medical records and the association between echocardiographic findings and in-hospital mortality was assessed using a multivariate model. The findings were reported as relative risk (RR) and 95% confidence interval (95% CI). Results: Data from 102 COVID-19 hospitalized patients were encompassed in the present study (63.7±15.7 mean age;60.8% male). Thirty patients (29.4%) died during hospitalization. Tricuspid regurgitation (89.2%), mitral valve regurgitation (89.2%), left ventricular (LV) diastolic dysfunction (67.6%), pulmonary valve insufficiency (PI) (45.1%) and LV systolic dysfunction (41.2%) were the most common findings on patients’ echocardiogram. The analyses of data showed that LV systolic (p=0.242) and diastolic (p=0.085) dysfunction was not associated with in-hospital mortality of COVID-19 patients, while the presence of PI (RR=1.85;95% CI: 1.02 to 3.33;p=0.042) and patients’ age (RR=1.03;95% CI: 1.01 to 1.08;p=0.009) were the two independent prognostic factors of in-hospital mortality. Conclusions: It seems that LV systolic and diastolic dysfunction was not associated with in-hospital mortality of COVID-19 patients. However, presence and PI and old age are possible prognostic factors of COVID-19 in-hospital mortality. Therefore, using echocardiography might be useful in management of COVID-19. © 2021 Tehran University of Medical Sciences.