| Characteristic | Patients (n = 14) |
| Male, n (%) | 10 (71%) |
| Females, n (%) | 4 (28.5%) |
| Diagnoses, n (%) |
|
| Double Outlet Right Ventricle | 6 (42%) |
| Tricuspid Atresia | 5 (35%) |
| Pulmonary Atresia | 3 (21%) |
| Pulmonary Stenosis | 1 (7%) |
| Ventricular Septal Defect | 1 (7%) |
| Hypoplastic Left Heart Syndrome | 1 (7%) |
| Transposition of the Great Arteries | 1 (7%) |
| Complete Atrioventricular Canal Defect | 1 (7%) |
| Double Inlet Left Ventricle | 1 (7%) |
| Heterotaxy | 3 (21%) |
| 2 or more of the above diagnoses | 7 (50%) |
| Preoperative |
|
| Age at Fontan (months), Median (IQR) | 31 (27.5 - 37.5) |
| Weight at Fontan (kg), avg ± std. dev | 12.6 ± 2.1 |
| BSA at Fontan (m2) | 0.56 ± 0.1 |
| Abnormal Arrhythmias | 1 (8%) |
| Intraoperative |
|
| CPB Time (minutes), Median (IQR) | 103.1 ± 12.5 |
| Cross Clamp Time (minutes) | 55.1 ± 9.8 |
| Fenestration | 100% |
| Postoperative |
|
| Ventilation Time (days), Median (IQR) | 0 (0, 1) |
| ICU Stay (days), Median (IQR) | 12 (9, 21) |
| Length of Stay (days), Mean (IQR) | 14.5 (10.3, 19.8) |
| Length of Follow-Up to Date (months), Median (IQR) | 41 (19, 47) |
| Chest Tube Drainage (days), Median (IQR) | 6.5 (3, 8) |
| Abnormal Arrhythmias |
|
| Pre-fontan | 1/13 (8%) |
| <2 Weeks after Fontan | 8/13 (61%) |
| >2 Weeks after Fontan | 5/12 (41%) |
| Inotrope Score, Median (IQR) |
|
| 24 Hours | 5 (5, 7.5) |
| 48 Hours | 0 (0, 3) |
| Vasoactive Inotropic Score (IQR) |
|
| 24 Hours | 13 (10,15) |
| 48 Hours | 10 (5, 10) |
| Mortalities | 0 (0%) |