Pulmonary hypertension

Pulmonary hypertension is a type of high blood pressure that affects the arteries in lungs and the right side of heart. In one form of pulmonary hypertension, tiny arteries in lungs, called pulmonary arterioles, and capillaries become narrowed, blocked or destroyed. This makes it harder for blood to flow through lungs, and raises pressure within lungs' arteries. As the pressure builds, the heart's lower right chamber (right ventricle) must work harder to pump blood through the lungs, eventually causing heart muscle to weaken and fail.

Pulmonary Hypertension defined as a pulmonary arterial pressure greater than 25 mm Hg at rest or greater than 30 mm Hg during exercise, is often characterized by a progressive and sustained increase in pulmonary vascular resistance that eventually may lead to right ventricular failure. It can be a life-threatening condition if untreated. Therapy for Pulmonary Hypertension is targeted at the underlying cause and its effects on the cardiovascular system.

Physicians may recommend tests and procedures to diagnose Pulmonary Hypertension and discover its cause and severity. Common diagnostic tests include an echocardiograph, chest X-ray, electrocardiogram (EKG) and catheterization of the right heart. Discovering the underlying cause may involve a chest CT scan, chest MRI, lung function tests, (PSG), lung ventilation/perfusion scan and blood tests.

 

  • Pulmonary arterial hypertension
  • lung disease
  • left-sided heart disease
  • Blood disorders
  • Complications for Pneumonia

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