Pulmonary Hypertension (PH) is an increase in the pressure within the blood vessels of the lung. Normal pulmonary artery pressure is 25/15. PH is broken down into 2 groups based upon what is causing the problem. Primary PH is caused by problems within the pulmonary blood vessels. Secondary PH is due to a lung or heart problem. PH can cause the inferior vena cava (IVC) to dilate, but does not cause it to rupture.
Your evaluation should determine the cause of your PH. PH is a treatable disease. The best treatment will depend upon the cause. I strongly suggest that you discuss these findings with your doctor.
A local University Medical Center Clinic would have experience treating people with PH.