Table 2. Case Description and Clinical Coursea.
| Patient No. | Demographicsb | Days to chest pain onset | ECG | Troponin I peak, ng/mL | Evaluation of CAD | LVEF on echo, % | LOS, d |
|---|---|---|---|---|---|---|---|
| 1 | 18-25 y, White man | 7 | Diffuse ST elevation | 8.10 | No CT evidence of CAD | 55-60 | 3 |
| 2 | 18-25 y, White man | 5 | Inferolateral T wave inversion | 8.87c | No CT evidence of CAD | 55-60 | 2 |
| 3 | 18-25 y, White man | 5 | Sinus tachycardia, no ischemic changes | 1.59c | No CT evidence of CAD | 60-65 | 3 |
| 4 | 26-40 y, White man | 3 | No ischemic changes | 2.50 | Normal coronaries on cardiac catheterization | 60-65 | 3 |
| 5 | 26-40 y, Hispanic man | 3 | Diffuse ST elevation | 1.53c | Normal coronaries on cardiac catheterization | 55-60 | 1 |
| 6 | 26-40 y, White man | 3 | Diffuse ST elevation | 17.12c | Normal coronaries on cardiac catheterization | 45, Global hypokinesis | 3 |
| 7 | 18-25 y, White man | 4 | Diffuse ST elevation | 5.00 | No cardiac catheterization or CT performed | 60-65 | 2 |
| 8 | 18-25 y, Hispanic man | 2 | Diffuse ST elevation | 11.79 | No CT evidence of CAD, MRI with myopericarditis | 50-55 | 3 |
| 9 | 18-25 y, White man | 3 | No ischemic changes | 7.37 | No CT evidence of CAD | 55-50 | 5 |
| 10 | 26-40 y, Hispanic man | 1 | No ischemic changes | 2.98 | Normal coronaries on cardiac catheterization | 60-65 | 3 |
| 11 | 26-40 y, man, unknown ethnicity | 3 | Diffuse ST elevation | 32.30 | No CT evidence of CAD | 55-60 | 3 |
| 12 | 26-40 y, White man | 1 | Diffuse ST elevation | 6.28 | No cardiac catheterization or CT performed | 55-60 | 1 |
| 13 | 18-25 y, Hispanic man | 3 | Diffuse ST elevation | 16.9 | No cardiac catheterization or CT performed | 30-35, Global hypokinesisd | 3 |
| 14 | 18-25 y, White man | 1 | Diffuse ST elevation | 15.9c | No cardiac catheterization or CT performed | 50-55 | 3 |
| 15 | 26-40 y, Asian man | 2 | Diffuse ST elevation | 0.49c | No CT evidence of CAD | 50-55 | 3 |
Abbreviations: CAD, coronary artery disease; CT, computed tomography; ECG, electrocardiogram; Echo, echocardiogram; LOS, length of stay; LVEF, left ventricular ejection fraction; MRI, magnetic resonance imaging.
a
To confirm myocarditis, the following criteria were used (1) symptoms consistent with myocarditis, (2) elevated troponin I level, (3) no evidence of obstructive coronary artery disease, and (4) no other identifiable cause.
b
Self-reported race and ethnicity from the electronic health record. To protect patient privacy, patient age was designated as either 18 to 25 or 26 to 40 years.
c
High-sensitivity troponin I values were converted from pg/mL to ng/mL (99th upper reference limit: 0.02 ng/mL).
d
LVEF recovered on a follow-up echocardiogram.