| Number (%) or median (range) |
---|---|
Median age (years) | 16.0 (0.1 – 20.3) |
Symptoms | 142 (99Â %) |
  Chest pain | 106 (74 %) |
  Recent or current viral symptoms | 60 (42 %) |
  Shortness of breath | 46 (32 %) |
  Fatigue | 35 (25 %) |
  Fever | 34 (24 %) |
  Palpitations | 18 (13 %) |
  Syncope | 11 (8 %) |
  Poor feeding | 10 (7 %) |
Signs of congestive heart failure | 18 (13Â %) |
New gallop rhythm | 11 (8Â %) |
New murmur | 4 (3Â %) |
Abnormal electrocardiogram | 125 (87Â %) |
  Ventricular tachycardia/fibrillation | 12 (8 %) |
  Atrial tachycardia | 2 (1 %) |
Abnormal laboratory data | 123 (86Â %) |
  Elevated troponin | 93 (65 %) |
  Elevated C-reactive protein | 59 (65 %) |
  Elevated CK-MB | 51 (36 %) |
  Elevated erythrocyte sedimentation rate | 18 (13 %) |
Admitted to the hospital | 139 (97Â %) |
  Inotropic support | 36 (25 %) |
  Ventilatory support | 17 (12 %) |
  Circulatory support | 5 (4 %) |
Treatment | Â |
  Intravenous immunoglobulin | 81 (57 %) |
  Steroids | 21(15 %) |
  Other immunomodulators | 8 (6 %) |