COVID-19(32) Mortality(12) outcome(12) patients(11) Patient(11) COVID-19 patient(10) ECG(10) cardiovascular disease(9) in-hospital mortality(9) Acute coronary syndrome(9) COVID-19 pandemic(9) myocarditis(8) coronary syndrome(8) cardiac(8) heart failure(7) reported(7) hypertension(7) Biomarker(7) Coronavirus disease 2019(6) lymphopenia(6) age(6) COVID-19 patients(6) Acute cardiac injury(6) Myocardial infarction(6) conducted(6) Biomarkers(6) elevated(6) Treatment(6) collected(6) Shock(6)