Table 3.
Results of magnetic resonance imaging at rest and during exercise stress within the pulmonary stenosis and pulmonary regurgitation group
| pre-PPVI rest vs. exercise |
post-PPVI rest vs. exercise |
Δ pre- vs. post-PPVI |
||||
|---|---|---|---|---|---|---|
| Rest | Exercise | Rest | Exercise | Rest | Exercise | |
| Pulmonary stenosis (n = 9) | ||||||
| RV EDV, mL/m2 | 103.0 ± 52.0 | 104.0 ± 44.4 | 93.9 ± 38.4 | 96.4 ± 35.9 | −9.2 ± 16.1 | −7.6 ± 11.9** |
| RV ESV, mL/m2 | 56.9 ± 42.2 | 57.7 ± 32.8 | 48.3 ± 37.3 | 43.7 ± 35.4* | −8.6 ± 7.9** | −14.0 ± 13.1** |
| RV SV, mL/m2 | 46.1 ± 14.1 | 46.4 ± 11.3 | 45.6 ± 6.4 | 52.7 ± 8.9* | −0.6 ± 9.6 | 6.3 ± 4.2 |
| RV EF, % | 48.2 ± 12.1 | 48.4 ± 14.8 | 53.4 ± 15.0 | 59.6 ± 17.3* | 5.2 ± 7.1** | 11.3 ± 9.8** |
| PRF, % | 8.6 ± 10.8 | 4.2 ± 4.4 | 0.5 ± 0.8 | 1.4 ± 3.8 | −8.1 ± 10.1** | −2.8 ± 4.2** |
| LV EDV, mL/m2 | 66.1 ± 16.7 | 66.0 ± 17.4 | 73.7 ± 14.1 | 75.9 ± 13.2 | 7.6 ± 4.8** | 9.9 ± 6.8** |
| LV ESV, mL/m2 | 24.8 ± 12.3 | 21.4 ± 12.8* | 28.3 ± 11.2 | 23.1 ± 10.1* | 3.5 ± 3.2** | 1.7 ± 3.9 |
| Effective LV/RV SV, mL/m2 | 41.3 ± 8.8 | 44.6 ± 10.4* | 45.4 ± 6.2 | 52.8 ± 8.8* | 4.1 ± 3.8** | 8.2 ± 4.1** |
| LV EF, % | 63.9 ± 11.4 | 69.6 ± 12.7* | 62.7 ± 8.6 | 70.4 ± 9.6* | −1.2 ± 4.6 | 0.9 ± 4.4 |
| Heart rate, b.p.m. | 76.6 ± 10.0 | 136.5 ± 15.3* | 76.0 ± 9.9 | 117.8 ± 13.8* | −0.6 ± 6.2 | −18.7 ± 12.3** |
| CO LV, mL/min * m2 | 3.1 ± 0.6 | 6.0 ± 1.4* | 3.4 ± 0.5 | 6.2 ± 1.4 | 0.3 ± 0.3 | 0.2 ± 0.4 |
| Pulmonary regurgitation (n = 8) | ||||||
| RV EDV, mL/m2 | 126.5 ± 24.5 | 127.9 ± 24.8 | 112.7 ± 24.1 | 115.7 ± 19.5 | −13.8 ± 12.0** | −12.2 ± 12.6** |
| RV ESV, mL/m2 | 65.3 ± 20.1 | 64.6 ± 20.9 | 63.0 ± 20.5 | 58.4 ± 17.7 | −2.2 ± 4.0 | −6.2 ± 10.7 |
| RV SV, mL/m2 | 61.3 ± 14.0 | 63.3 ± 9.9 | 49.7 ± 7.8 | 57.3 ± 6.9* | −11.6 ± 10.7** | −6.0 ± 5.4** |
| RV EF, % | 48.9 ± 9.9 | 50.4 ± 8.4 | 45.5 ± 8.3 | 50.4 ± 7.9* | −3.9 ± 3.6 | 0.0 ± 4.5 |
| PRF, % | 29.2 ± 5.2 | 13.6 ± 6.1* | 0.3 ± 0.0 | 1.9 ± 3.1 | −29.2 ± 5.1** | −11.7 ± 5.4** |
| LV EDV, mL/m2 | 76.7 ± 19.2 | 82.1 ± 25.9 | 81.7 ± 23.9 | 87.1 ± 129.5 | 4.9 ± 7.7 | 5.1 ± 5.9** |
| LV ESV, mL/m2 | 33.7 ± 19.9 | 27.7 ± 23.7* | 33.2 ± 16.7 | 29.9 ± 24.3 | −0.4 ± 4.5 | 2.1 ± 3.9 |
| effective LV/RV SV, mL/m2 | 43.0 ± 8.5 | 54.3 ± 6.6* | 48.4 ± 8.8 | 57.2 ± 8.1* | 5.4 ± 6.6** | 2.9 ± 4.2 |
| LV EF, % | 57.5 ± 10.8 | 69.5 ± 13.5* | 60.7 ± 7.4 | 68.7 ± 11.9* | 3.2 ± 5.0 | −0.8 ± 4.2 |
| Heart rate, b.p.m. | 79.5 ± 9.8 | 128.9 ± 10.9* | 81.4 ± 10.3 | 123.1 ± 12.5* | 1.9 ± 2.8 | −5.8 ± 11.9 |
| CO LV, mL/min m2 | 3.4 ± 0.7 | 7.0 ± 1.2* | 3.8 ± 0.6 | 7.1 ± 1.3* | 0.5 ± 0.5** | 0.0 ± 0.7 |
RV, right ventricle; EDV, end-diastolic volume; ESV, end-systolic volume; SV, stroke volume; EF, ejection fraction; PRF, pulmonary regurgitation fraction; LV, left ventricle; CO, cardiac output.
*A significant difference (P < 0.05) between parameters at rest vs. during exercise.
**A significant difference (P < 0.05) between parameters pre-PPVI vs. post-PPVI.