| Frequency* (%) |
Presenting symptoms |
- Persistent fevers (median duration 4 to 6 days)
| 100 |
- Gastrointestinal symptoms (abdominal pain, vomiting, diarrhea)
| 60 to 100 |
| 45 to 76 |
| 30 to 81 |
- Mucous membrane involvement
| 27 to 76 |
- Neurocognitive symptoms (headache, lethargy, confusion)
| 29 to 58 |
- Respiratory symptoms (tachypnea, labored breathing)
| 21 to 65 |
| 10 to 16 |
| 8 to 17 |
| 9 to 16 |
| 6 to 16 |
Clinical findings |
| 32 to 76 |
- Criteria for complete Kawasaki disease met
| 22 to 64 |
- Myocardial dysfunction (by echocardiogram or elevated troponin/BNP)
| 51 to 90 |
| 12 |
- Acute respiratory failure requiring noninvasive or invasive ventilation
| 28 to 52 |
| 8 to 52 |
- Serositis (small pleural, pericardial, and ascitic effusions)
| 24 to 57 |
- Hepatitis or hepatomegaly
| 5 to 21 |
- Encephalopathy, seizures, coma, or meningoencephalitis
| 6 to 7 |
Laboratory findings |
- Abnormal blood cell counts
|
| 80 to 95 |
| 68 to 90 |
| 70 |
| 31 to 80 |
- Elevated inflammatory markers
|
| 90 to 100 |
- Erythrocyte sedimentation rate
| 75 to 80 |
| 67 to 100 |
| 80 to 100 |
| 55 to 76 |
| 80 to 95 |
| 80 to 100 |
|
| 50 to 90 |
| 73 to 90 |
| 48 to 95 |
- Mildly elevated liver enzymes
| 62 to 70 |
- Elevated lactate dehydrogenase
| 10 to 60 |
| 70 |
Imaging findings |
|
| 31 to 58 |
- Coronary artery dilation/aneurysm
| 8 to 38 |
- Other findings can include mitral regurgitation and pericardial effusion
| -- |
|
| -- |
- Abnormal findings included small pleural effusions, patchy consolidations, focal consolidation, and atelectasis
| -- |
|
- Findings generally similar to those on chest radiograph
| -- |
- A few patients had nodular ground-glass opacification
| -- |
- Abdominal imaging (ultrasound and/or CT)
|
- Findings are nonspecific, including free fluid, ascites, bowel and mesenteric inflammation, including terminal ileitis, mesenteric adenopathy/adenitis, and pericholecystic edema
| -- |