Imaging parameters
| Before PVR | Early after PVR | Δ PVR | p Value Δ | |
|---|---|---|---|---|
| Echocardiography | n=135 | n=140 | n=125 | n=125 |
| Time echo from PVR (years) | −0.37 (−0.14, −0.71) | 0.02 (0.01, 0.30) | ||
| PR grade (0–3) | −2 (−2 to −3) | <0.001 | ||
| None/trivial (grade 0) | 3 (2%) | 118 (88%) | ||
| Mild (grade 1) | 16 (12%) | 14 (10%) | ||
| Moderate (grade 2) | 44 (33%) | 1 (1%) | ||
| Severe (grade 3) | 70 (53%) | 1 (1%) | ||
| PS-max gradient (mm Hg) | 24±21 | 19±12 | −4.7±22 | 0.01 |
| TR grade (0–3) | 0 (−1 to 0) | <0.001 | ||
| None/trivial (grade 0) | 2 (2%) | 23 (18%) | ||
| Mild (grade 1) | 85 (69%) | 96 (71%) | ||
| Moderate (grade 2) | 26 (21%) | 15 (11%) | ||
| Severe (grade 3) | 10 (8%) | 0 | ||
| Estimated PAP | 20±15 | 19±13 | −1±16 | 0.64 |
| CMR | n=101 | n=81 | n=67 | n=67 |
| Time CMR from PVR (years) | −0.46 (−0.29, −0.96) | 0.88 (0.51, 1.60) | ||
| RV EDVI (mL/m2) | 171±40 | 116±31 | −55±31 | <0.001 |
| RV ESVI (mL/m2) | 99±31 | 66±29 | −33±24 | <0.001 |
| LV EDVI (mL/m2) | 89±21 | 97±21 | 8±18 | <0.001 |
| LV ESVI (mL/m2) | 43±14 | 46±16 | 3.0±12 | 0.04 |
| RV EF (%) | 43±9 | 45±10 | 2.0±9.0 | 0.07 |
| LV EF (%) | 52±11 | 53±11 | 1.4±7.5 | 0.15 |
| PR fraction (%) | 46±11 | 0 (0,4) | −42±12 | <0.001 |
Data are described as number with frequency, mean with SD or median with IQR. In 125 patients, echocardiography, and in 67 patients, CMR imaging were available both preoperatively and early postoperatively.
CMR, cardiovascular magnetic resonance; EDVI, end-diastolic volume index; ESVI, end-systolic volume index; PAP, pulmonary artery pressure; PR, pulmonary regurgitation; PS, pulmonary stenosis; PVR, pulmonary valve replacement; TR, tricuspid regurgitation.
Δ refers to the difference between preoperatively and postoperatively.