Table 2.
Results of magnetic resonance imaging at rest and during exercise stress within the total population
| pre-PPVI rest vs. exercise |
post-PPVI rest vs. exercise |
Δ pre- vs. post-PPVI |
||||
|---|---|---|---|---|---|---|
| Rest | Exercise | Rest | Exercise | Rest | Exercise | |
| RV EDV, mL/m2 | 113.8 ± 41.0 | 115.2 ± 37.5 | 102.7 ± 33.0 | 105.5 ± 30.2 | −11.1 ± 13.7** | −9.7 ± 12.0** |
| RV ESV, mL/m2 | 61.3 ± 33.3 | 60.9 ± 33.4 | 55.2 ± 30.7 | 50.6 ± 28.6* | −6.1 ± 6.9** | −10.3 ± 12.4** |
| RV SV, mL/m2 | 52.5 ± 15.4 | 54.3 ± 13.5 | 47.5 ± 7.2 | 54.9 ± 8.2* | −5.0 ± 11.0 | 0.5 ± 7.8 |
| RV EF, % | 48.1 ± 11.1 | 49.3 ± 11.6 | 49.5 ± 12.7 | 55.3 ± 14.1* | 1.4 ± 7.1 | 5.9 ± 9.6** |
| PRF, % | 17.3 ± 13.3 | 8.6 ± 7.0* | 1.9 ± 2.5 | 1.3 ± 3.8 | −15.4 ± 11.6** | −7.3 ± 6.3** |
| LV EDV, mL/m2 | 71.1 ± 18.1 | 73.6 ± 22.7 | 77.4 ± 19.2 | 81.2 ± 22.4 | 6.4 ± 6.3** | 7.6 ± 6.7** |
| LV ESV, mL/m2 | 29.0 ± 14.9 | 24.4 ± 18.4* | 30.6 ± 13.8 | 26.3 ± 17.9 | 1.6 ± 4.2 | 1.9 ± 3.8 |
| Effective LV/RV SV, mL/m2 | 42.1 ± 8.4 | 49.2 ± 9.9* | 46.8 ± 7.5 | 54.9 ± 8.6* | 4.7 ± 5.2** | 5.7 ± 4.8** |
| LV EF, % | 60.9 ± 11.3 | 69.5 ± 12.7* | 61.7 ± 7.9 | 69.6 ± 10.5* | 0.9 ± 5.2 | 0.1 ± 4.2 |
| Heart rate, b.p.m. | 78.0 ± 9.7 | 132.9 ± 13.6* | 78.5 ± 10.2 | 120.5 ± 13.0* | 0.6 ± 4.9 | −12.4 ± 13.5** |
| CO LV, mL/min m2 | 3.3 ± 0.7 | 6.5 ± 1.3* | 3.6 ± 0.6 | 6.6 ± 1.4* | 0.3 ± 0.4** | 0.1 ± 0.5 |
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.