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What is pulmonary hypertension?

Pulmonary hypertension is a lung disorder in which blood pressure in the pulmonary artery rises above normal levels. The pulmonary artery is the blood vessel carrying oxygen-poor blood from the heart to the lungs. Pulmonary hypertension is present when the mean pulmonary artery pressure is greater than 25mmHg at rest or 30mmHg with exercise. This abnormally high pressure (pulmonary hypertension) is associated with changes in the small blood vessels in the lungs, resulting in (More)

Understanding Pulmonary Hypertension

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