Joint Use of Electrocardiogram and Transthoracic Echocardiography With Other Clinico-biological Parameters in an Observational Study to Monitor Cardio-vascular Events and Predict Outcomes in Patients Diagnosed With COVID-19

"* 12 derivations electrocardiogram done at baseline and repeated every 3 days~* transthoracic echocardiography at baseline~* clinical features at baseline: WHO performans status comorbidities and treatments~* biological results in routine care, such as baseline full blood count, inflammation markers: C-reactive protein, procalcitonin, interleukin-6 and ferritin, coagulation and troponin and brain natriuretic peptide"