Table 2.
Demographics of patients at each imaging instance
| Pre-BDG N=63 |
BDG N=118 |
Fontan N=54 |
Total N=235 |
|
|---|---|---|---|---|
| Male | 40 (64%) | 70 (60%) | 37 (69%) | 147 (64%) |
| Female | 23 (37%) | 48 (41%) | 17 (32%) | 88 (37%) |
| Age in years* (range) |
0.45 ± 0.13 (0.27 – 0.78) |
3.25 ± 0.96 (2.08 – 7.64) |
3.92 ± 1.22 (2.13 – 8.36) |
2.64 ± 1.63 (0.27 – 8.36) |
| Height (cm)* | 63.2 ± 6.20 | 91.7 ± 14.04 | 97.3 ± 11.79 | 85.7 ± 17.93 |
| Weight (kg)* | 6.30 ± 1.12 | 13.4 ± 2.96 | 15.7 ± 3.02 | 12.1 ± 4.41 |
| BSA (m2)* | 0.33 ± 0.04 | 0.58 ± 0.10 | 0.64 ± 0.09 | 0.53 ± 0.15 |
| Time from prior surgery to MRI (months)* |
4.9 + 1.5 | 29 + 14.6 | 8.6 + 5.3 | 18.1 + 15.7 |
| Heart rate (BPM) † | 136 ± 25 | 116 ± 20 | 115± 20 | 121 ± 23 |
| Systolic BP (mm Hg) ‡ |
107 ± 26 | 110 ± 23 | 99 ± 16 | 107 ± 23 |
| Diastolic BP (mm Hg)§ |
54 ± 16 | 64 ± 20 | 53 ± 17 | 59 ± 19 |
| Hemoglobin (mg/dl) | 13.5 ± 1.72 | 15.5 ± 1.83 | N/A | 14.8 ± 2.02 |
| PO2 in RA/PO2 in hypercarbia |
45.8 ± 4.05/ 51.5 ± 6.13 |
51.7 ± 7.19/ 60.3 ± 8.94 |
N/A | - |
| O2 sat in RA/O2 sat in hypercarbia |
79.6 ± 4.77/ 76.5 ± 7.32 |
83.9 ± 6.73/ 83.1 ± 6.24 |
N/A | - |
| Cardiopulmonary bypass time (minutes) |
84.6 ± 27.39 | 61.1 ± 27.77 | 70.0 ± 18.21 | 68.5 ± 27.20 |
| Circulatory arrest Time (minutes) |
43.1 ± 14.69 | 28.0 ± 18.66 | 26.5 ± 9.81 | 31.3 ± 16.89 |
| Morphology | ||||
| HLHS | 40 | 62 | 28 | 130 |
| Tricuspid Atresia | 7 | 8 | 3 | 18 |
| DORV | 6 | 12 | 6 | 24 |
| Pulmonary Atresia | 4 | 11 | 8 | 23 |
| Unbalanced AVC | 3 | 13 | 4 | 20 |
| TGA | 0 | 4 | 0 | 4 |
| DILV | 0 | 4 | 4 | 8 |
| Other | 3 | 4 | 1 | 8 |
*
P<0.05 for comparison between all 3 groups,
†
P<0.05 for comparison between all 3 groups except BDG to Fontan,
‡
P<0.05 for comparison between BDG to Fontan.
§
P<0.05 for comparison between all 3 groups except pre-BDG vs Fontan.
AVC=atrioventricular canal, BP=blood pressure, BPM=beats per minute, BSA (m2)=body surface area in meters squared cm=centimeters, DILV=double inlet left ventricle, DORV=double outlet right ventricle, HLHS=hypoplastic left heart syndrome, Kg=kilograms, mg/dl=milligrams/deciliter, mm Hg=millimeters of mercury, TGA=transposition of the great arteries.