What is Pulmonary Hypertension?

Pulmonary hypertension is a type of high blood pressure that affects your lungs and heart. Pulmonary hypertension is different than having regular high blood pressure and causes the tiny arteries in your lungs to become narrow or blocked. This makes it harder for blood to flow through and raises the blood pressure in your lungs which makes your heart work harder. This causes the heart muscle to weaken and can eventually lead to heart failure. 


Pulmonary Arterial Hypertension

Pulmonary Arterial Hypertension can develop without a known cause or as the result of other diseases, such as:

  • Collagen vascular diseases
    • Scleroderma
    • CREST syndrome, also known as limited scleroderma
    • Lupus
  • Congenital heart disorders
    • Ventricular septal defect (VSD)
    • Atrial septal defect (ASD)
  • Blood clots in the blood vessels in the lungs
  • HIV
  • Liver diseases
  • Diet drugs

Secondary Pulmonary Hypertension

Secondary Pulmonary Hypertension can occur as the result of other diseases, such as:

  • Emphysema
  • COPD
  • Chronic low oxygen levels
  • Sleep disordered breathing
  • Interstitial lung disease
  • Left heart failure
  • Heart valve disorders
  • End stage renal disease
  • Severe anemia, such as sickle cell disease