Pulmonary Arterial Hypertension

Pulmonary arterial hypertension is also known as Primary Pulmonary Arterial Hypertension (PAH), or idiopathic Pulmonary Arterial Hypertension (PAH).

The pulmonary arteries carry blood from the heart to the lungs. PAH increases the resistance of blood flow through the lungs. Due to the increased strain the right side of the heart pumps blood less effectively, this can eventually lead to heart failure, known as right ventricular failure.

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