| Excessive fatigue or exercise intolerance |
| Chest pain |
| Unexplained sinus tachycardia |
| S3, S4, or summation gallop |
| Abnormal electrocardiogram |
| Abnormal echocardiogram |
| New cardiomegaly on chest radiograph |
| Atrial or ventricular arrhythmia |
| Partial or complete heart block, new-onset bundle branch block |
| New-onset or worsening heart failure |
| Acute pericarditis |
| Cardiogenic shock |
| Sudden cardiac death |
| Respiratory distress/tachypnea |
| Hepatomegaly |
