Table 1 Characteristics of study cohort
Characteristic | First CMR (N = 237) | Second CMR (N = 92) | ||
|---|---|---|---|---|
N | % | N | % | |
Gender | ||||
Male | 157 | 66.2 | 68 | 73.9 |
Female | 80 | 33.8 | 24 | 26.1 |
Race/Ethnicity | ||||
White | 182 | 77.5 | 68 | 73.9 |
African American | 23 | 9.8 | 10 | 10.9 |
Hispanic | 13 | 5.5 | 5 | 5.4 |
Other | 17 | 7.2 | 9 | 9.8 |
Missing | 2 | – | 0 | – |
Body Mass Index (kg/m2) | ||||
Underweight (< 18.5) | 51 | 21.5 | 23 | 25.0 |
Normal (18.5 to < 25) | 125 | 52.7 | 51 | 55.4 |
Overweight (25 to < 30) | 34 | 14.4 | 9 | 9.8 |
Obese (≥30) | 27 | 11.4 | 9 | 9.8 |
Prematurity | ||||
Yes | 40 | 18.4 | 22 | 26.8 |
No | 177 | 81.6 | 60 | 73.2 |
Missing | 20 | – | 10 | – |
Pulmonary Valve Anatomy | ||||
Absent | 18 | 7.9 | 7 | 7.8 |
Atresia | 43 | 18.8 | 20 | 22.2 |
Stenosis | 168 | 73.4 | 63 | 70.0 |
Missing | 8 | – | 2 | – |
RVOT Obstruction | ||||
Yes | 18 | 8.1 | 10 | 11.0 |
No | 203 | 91.9 | 81 | 89.0 |
Missing | 16 | – | 1 | – |
Palliative Procedure | ||||
Yes | 37 | 15.6 | 18 | 19.6 |
No | 200 | 84.4 | 74 | 80.4 |
Age at complete repair (months) | ||||
0–4 | 149 | 63.1 | 52 | 56.5 |
5–8 | 49 | 20.8 | 20 | 21.7 |
9–12 | 22 | 9.3 | 11 | 12.0 |
> 12 | 16 | 6.8 | 9 | 9.8 |
Missing | 1 | – | 0 | – |
Type of Surgical Repair | ||||
Transannular Patch | 176 | 75.2 | 71 | 77.2 |
Right Ventricle to Pulmonary Artery Conduit | 35 | 15.0 | 13 | 14.1 |
Nontransannular Patch or Ventricular Septal Defect Closure Only | 23 | 9.8 | 8 | 8.7 |
Missing | 3 | – | 0 | – |
Intervening events since complete repair | ||||
Yes | 120 | 50.6 | 56 | 60.9 |
No | 117 | 49.4 | 36 | 39.1 |
Pulmonary Artery Confluence | ||||
Yes | 217 | 93.1 | 87 | 95.6 |
No | 16 | 6.9 | 4 | 4.4 |
Missing | 14 | – | 1 | – |
Pulmonary Regurgitant Fraction | ||||
Mild (0–20) | 53 | 23.0 | 0 | 0 |
Moderate (> 20–40) | 90 | 39.1 | 37 | 50.0 |
Severe (> 40) | 87 | 37.8 | 37 | 50.0 |
Missing | 7 | – | 18 | – |
Median | IQR | Median | IQR | |
Age (years) | 12.3 | 8.7–16.2 | 15.8 | 12.2–18.7 |
Time between complete repair and first CMR (years) | 11.0 | 8–15 | 15.0 | 11–18 |
RV fibrotic volume, indexed (ml/m2) | 0.6 | 0.3–1.0 | 0.7 | 0.4–1.0 |
RV fibrotic score | 2 | 1–3 | 2 | 1–3 |
RVEDVI | 112.0 | 89.7–140.0 | 125.9 | 105.5–144.6 |
RVEF (%) | 58.8 | 52.8–63.8 | 56.6 | 50.5–60.9 |