Clinical characteristics (n=42)
| Age at transcatheter ASD closure (years) | 51±18 |
| Female | 32 (76) |
| Maximum defect diameter (mm) | 23 |
| WHO functional class I or II | 18 (43) |
| WHO functional class III or IV | 24 (57) |
| B-type natriuretic peptide (pg/mL) | 158±192 |
| Pulmonary vascular resistance (Wood unit) | 6.9±3.2 |
| Mean PAP (mm Hg) | 45±15 |
| Pulmonary to systemic blood flow ratio | 1.9±0.8 |
| Estimated systolic PAP (mm Hg) | 78±26 |
Data are presented as mean±SD, median or number (%) of patients.
ASD, atrial septal defect; PAP, pulmonary artery pressure.