2D Echocardiography Findings
| Parameter | Before therapy | After 6 cycles |
| Right ventricular ejection fraction (%) | 45 | 50 |
| Right ventricle size (cm) | 4.1 | 4.3 |
| Right atrium size (cm) | 5.8 | 6.0 |
| Tricuspid regurgitation | Severe | Severe |
| Tricuspid stenosis | Severe | Moderate |
| Pulmonary stenosis | Moderate | Mild |