Table 2.
Patient primary diagnoses
| N | |
| Coronary arterial disease | 27 |
| Congestive heart failure | 22 |
| Valvular disease | 12 |
| Pulmonary embolism | 5 |
| Cardiac arrhythmia | 4 |
| Pulmonary infection | 4 |
| Aortic aneurysm or dissection | 3 |
| Idiopathic PH | 3 |
| Interstitial lung disease | 3 |
| ARDS | 2 |
| Cardiac tamponade | 2 |
| COPD | 2 |
| Obstructive sleep apnea | 2 |
| Other * | 10 |
*Other includes: cancer, anorexigen drug use, cerebrovascular accident, end-stage renal disease, hepatopulmonary syndrome, kyphoscoliosis, prior history of lung transplant, malignant hypertension, scleroderma, and trauma.