Table 1

- Baseline demographics at admission in acute myocarditis patients.

VariableN (%)
Age, mean±SD, years33.5±10.2
Female22 (26.2)
Comorbidities
Heart failure17 (20.2)
Hypertension14 (16.7)
Auto-immune disease11 (13.1)
Dyslipidemia10 (11.9)
Diabetes mellitus9 (10.7)
Chronic kidney disease4 (4.8)
Clinical presentation
Symptoms onset, mean±SD, days3.2±3.4
Fulminant11 (13.1)
Chest pain70 (83.3)
Dyspnea34 (40.5)
Fever21 (25)
Nausea and vomiting15 (17.9)
Palpitations13 (15.5)
Syncope5 (6)
Respiratory tract infection23 (27.4)
COVID-199 (10.7)
ECG Changes 
ST-T changes38 (45.2)
Ventricular arrhythmias0 (0)
BBB0 (0)
AV block2 (2.4)
Lab Findings
Increased troponin I*84 (100)
Increased CK-MB, CK64 (76.2)
Increased BNP20 (23.8)
Increased WBC26 (31)
Increased lactate13 (15.5)
Increased CRP, ESR36 (42.9)
ECHO findings
Pericardial effusion7 (1.2)
LVEF, mean±SD46±12.4

Values are presented as values and percentage (%). This table presents the clinical and laboratory characteristics of patients in the study. The data is summarized using numbers (n) and percentages (%), or mean ± standard deviation (mean±SD) where applicable. Mean±SD: Mean value with standard deviation. ECG: electrocardiogram, ST-T Changes: changes in the ST segment or T wave on an ECG. BBB: bundle branch block, AV block: atrioventricular block, Troponin I: cardiac troponin I, a biomarker for cardiac muscle injury. CK-MB: Creatine Kinase-MB, an enzyme found in the heart muscle, used as a biomarker for myocardial infarction, CK: creatine kinase, an enzyme indicative of muscle damage. BNP: B-type natriuretic peptide, a biomarker used in the diagnosis of heart failure. WBC: white blood cells, an indicator of infection or inflammation. CRP: C-reactive protein, a marker of inflammation. ESR: erythrocyte sedimentation rate, another marker of inflammation. ECHO: echocardiogram, an ultrasound of the heart. LVEF: left ventricular ejection fraction, a measure of the heart’s pumping efficiency. SD: standard deviation