Student guest post Dayna Groskreutz
Pulmonary hypertension (PH) refers to a condition in which there is high blood pressure in the vessels carrying blood from the heart to the lungs. Pulmonary arterial hypertension (PAH) is a subset of PH referring specifically to an increase in the pressure within the pulmonary arteries (rather than the pulmonary veins or capillaries). The high blood pressure in the vessels causes thickening of these arteries, making it hard for the heart to pump blood to the lungs. Pressure builds up and backs up. Over time, stress on the heart causes it to enlarge, and it…
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