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Pediatric PHVD Classification
| 1. Prenatal or developmental PHVD |
| 2. Perinatal pulmonary vascular maladaptation |
| 3. Cardiovascular disease |
| 4. Bronchopulmonary dysplasia |
| 5. Isolated PHVD |
| 6. Multifactorial PHVD in congenital malformation syndromes |
| 7. Lung disease |
| 8. Thromboembolic disease |
| 9. Hypobaric hypoxia exposure |
| 10. PHVD with systemic disorders |
PHVD indicates pulmonary hypertensive vascular disease.
