Median age was 64.1 ± 16.7 years, and the majority of patients were male (n = 108, 65.1%). Arterial hypertension constituted the most common risk factor (n = 83, 50.0%). Cardiovascular disease was present in 18.1% (n = 30), cardiomyopathy in 3.0% (n = 5), diabetes mellitus in 17.5% (n = 29), and obesity in 21.7% (n = 36). Other relevant comorbidities comprised pulmonary disease (e.g., chronic obstructive pulmonary disease, pulmonary fibrosis) in 14.5% (n = 24), previous or active cancer disease in 8.4% (n = 14), and conditions associated with immunodeficiency (e.g., due to chronic immunosuppression therapy after organ transplantation or hematological disease) in 8.4% (n = 14). Information on left ventricular ejection fraction (LVEF) was available in 44 patients (26.5%). Mean LVEF in this subgroup was 53.0 ± 12.3%. In three patients a cardiac pacemaker had been implanted (1.8%). Implanted cardioverter-defibrillators (ICDs) were present in two patients (1.2%). Seven patients (4.2%) presented with syncope in association with COVID-19 prior to hospital admission.