What causes chronic thromboembolic pulmonary hypertension (CTEPH)?

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What causes chronic thromboembolic pulmonary hypertension (CTEPH)?

CTEPH is caused by the blood clots in the lungs that create scarring that in turn blocks the arteries in the lungs. Certain conditions, like cancer, blood diseases or inflammatory diseases are linked to a higher risk of CTEPH. Other risk factors for CTEPH include:

  • Unprovoked large pulmonary embolisms, or PEs.
  • Not having a spleen.
  • Being on thyroid replacement therapy.
  • Some blood clotting disorders, such as the lupus anticoagulant or antiphospholipid syndrome.
  • Having an infected pacemaker.
  • Having a blood type that is not Type O.

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