Recommendations for classification of mitral stenosis
| Mild | Moderate | Severe | |
| Specific findings | |||
| Valve area (cm²) | >1.5 | 1.0-1.5 | <1.0 |
| Supportive findings | |||
| Mean gradient (mmHg) | <5 | 5-10 | >10 |
| Pulmonary artery pressure (mmHg) | <30 | 30-50 | >50 |
*at heart rates between 60 and 80 bpm and in sinus rhythm
