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If you have severe pulmonary hypertension, your doctor may prescribe medications called calcium channel blockers. These medicines lower blood pressure in the lungs and the rest of the body. If calcium channel blockers arenât enough, your doctor may refer you to a specialized treatment center.
Definition and Causes. Pulmonary hypertension is a hemodynamic state defined by a resting mean pulmonary artery pressure at or above 25 mm Hg. Because this definition is based on hemodynamic criteria, pulmonary hypertension can be the result of a variety of diseases of different causes. Pulmonary arterial hypertension (PAH), however, should be distinctly differentiated from pulmonary venous hypertension resulting from left heart disease.