Relation between the mitral valve area before and after balloon dilatation and the echo score
| Echo score | |||||
|---|---|---|---|---|---|
| 1–4 | 5–8 | 9–12 | 13–16 | p Value | |
| Number of patients | 79 | 149 | 57 | 15 | |
| Valve area before dilatation (cm2) | 1.10 (0.31) | 0.89 (0.25) | 0.79 (0.28) | 0.63 (0.25) | < 0.0001 |
| Valve area after dilatation (cm2) | 2.12 (0.92) | 1.67 (0.55) | 1.49 (0.57) | 1.19 (0.53) | < 0.0001 |
| Increase in valve area (cm2) | 1.01 (0.77) | 0.77 (0.51) | 0.70 (0.50) | 0.56 (0.47) | < 0.001 |
Values are mean (SD).