Baseline and follow up Doppler haemodynamic results
| Parameter | Group 1 (n = 84) | Group 2 (n = 384) | p Value (group 1 v 2) | |
|---|---|---|---|---|
| *p<0.001; **p<0.0001; †p = NS (all in comparison to baseline values in the same group). | ||||
| B, before valvotomy; F, follow up; LA, left atrial; MG, transmitral valve gradient; MVA, mitral valve area; NS, non-significant difference; PAP, pulmonary arterial pressure. | ||||
| Doppler MG (mm Hg) | B | 15 (5.3) | 12.7 (4.5) | <0.001 |
| F | 5.4 (2.2)† | 5.8 (2.7)* | NS | |
| Doppler MVA (cm2) | B | 0.84 (0.17) | 0.92 (0.18) | <0.001 |
| F | 1.8 (0.34)** | 1.7 (0.37)** | NS | |
| Systolic PAP (mm Hg) | B | 47.5 (16.2) | 46.9 (18) | NS |
| F | 28 (4.7)** | 31 (9.9)** | NS | |
| LA dimension (mm) | B | 46 (9) | 48.5 (6.9) | <0.01 |
| F | 44 (6.5)** | 44 (7.3)** | NS | |
| Restenosis | 12 (14.3%) | 62 (16.1%) | NS | |