| Patient 1 | Patient 2 | |
| Age (years) | 27 | 28 |
| Gender | Male | Male |
| Main symptom | Dyspnea, angina | Dyspnea |
| PA diameter (mm) | 78 | 110 |
| Pulmonary trunk/aortic diameter ratio | 2.75 | 3.33 |
| Degree of LMCA compression | 70% | 55% |
| Angle between the LMCA and left sinus of Valsalva | 25˚ | 15˚ |
| sPAP (mmHg) | 97 | 82 |
| Pulmonary regurgitation | Severe | Moderate |
| Outcome | Fatal | Alive |