Return to Pharmacotherapy Update Index. Introduction. Pulmonary arterial hypertension (PAH) is a devastating disease defined by an increase in pulmonary vascular resistance which leads to right ventricular failure and ultimately to death. 1 Vasoconstriction has been noted to be part of the etiology of this disease. 2 The release. BACKGROUND. A long-term trial showed that the oral prostacyclin (PGl 2) receptor (IP) agonist, selexipag, delayed disease progression in patients with pulmonary arterial hypertension (PAH). Pulmonary Hypertension Online Medical Reference - covering Definition through Treatment. Co-uthored by Raed A. Dweik, Gustavo A. Heresi, Omar A. Minai, and Adriano R. Tonelli of the Cleveland Clinic. Pulmonary hypertension is a hemodynamic state defined by a resting mean pulmonary artery pressure at or above 25 mm Hg. General Discussion. Summary. Pulmonary arterial hypertension (PAH) is a rare, progressive disorder characterized by high blood pressure (hypertension) in the arteries of the lungs (pulmonary artery) for no apparent reason. Warfarin sodium tablets are indicated for: Prophylaxis and treatment of venous thrombosis and its extension, pulmonary embolism (PE). Prophylaxis and treatment of thromboembolic complications associated with atrial fibrillation (AF) and/or cardiac valve replacement. INTRODUCTION — Early identification and treatment of pulmonary hypertension (PH) is generally suggested because advanced disease may be less responsive to therapy. Treatment begins with a baseline assessment of disease severity, followed by primary therapy. Pulmonary hypertension is increased pressure in the pulmonary circulation. It has many secondary causes; some cases are idiopathic. In pulmonary hypertension, pulmonary vessels become constricted and/or obstructed. Severe pulmonary hypertension leads to right ventricular overload and failure Updated January 25, 2007 Primary Pulmonary hypertension (PPH) hits less than a thousand people a year in the USA. Secondary pulmonary hypertension affects many more. Pulmonary hypertension — Comprehensive overview covers symptoms, risk factors and treatment of this lung condition. Being diagnosed with pulmonary arterial hypertension (PAH) can be overwhelming. Working with your doctor to create a care plan can ease your symptoms and give you some peace of mind.