The diameters of cardiac cavity and LVEF
The diameters of cardiac cavity and other echocardiographic parameters are shown in Table 3. Patients with COVID-19 pneumonia had significantly larger right atrium and right ventricle than healthy subjects (P < 0.01), and there were no statistically significant difference in RAD and RVD between severe and critically severe patients (P > 0.05). Critically severe patients had a significantly lower LVEF than healthy subjects and severe patients (P < 0.05).