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What causes pulmonary arterial hypertension?

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Most people get PAH when another illness damages their heart or lungs. The most common are:

In rare cases, the arteries themselves become narrow and stiff, leaving little room for blood to pass through, because of:

  • Heart problems like mitral valve disease or long-term high blood pressure damage the left side of the heart
  • Lung diseases such as sleep apnea and chronic obstructive pulmonary disease (COPD)
  • Blood clots
  • Other disorders including blood, metabolic, and immune system
  • A defect in a gene
  • An illness that affects many parts of your body
  • A heart defect you were born with
  • Some drugs and toxins, especially diet drugs and street drugs
  • Infection with HIV or a parasite called schistosoma

From: What Is Pulmonary Arterial Hypertension? WebMD Medical Reference

SOURCES:

National Heart, Lung, and Blood Institute: “What is Pulmonary Hypertension?”

American Heart Association: “Pulmonary Hypertension.”

American Thoracic Society: “Pulmonary Arterial Hypertension.”

Pulmonary Hypertension Association.

Stringham, R.  August 2010. American Family Physician, 

NCBI Bookshelf: “Heritable Pulmonary Arterial Hypertension.”

National Organization for Rare Disorders: “Pulmonary Arterial Hypertension.”

Kingrey, J:  Fall 2014. Pathlight, 

Reviewed by Neha Pathak on January 02, 2019

SOURCES:

National Heart, Lung, and Blood Institute: “What is Pulmonary Hypertension?”

American Heart Association: “Pulmonary Hypertension.”

American Thoracic Society: “Pulmonary Arterial Hypertension.”

Pulmonary Hypertension Association.

Stringham, R.  August 2010. American Family Physician, 

NCBI Bookshelf: “Heritable Pulmonary Arterial Hypertension.”

National Organization for Rare Disorders: “Pulmonary Arterial Hypertension.”

Kingrey, J:  Fall 2014. Pathlight, 

Reviewed by Neha Pathak on January 02, 2019

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What are causes of pulmonary arterial hypertension (PAH) in the arteries?

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