TY - CHAP M1 - Book, Section TI - Pulmonary Hypertension A1 - Maron, Bradley A. A1 - Loscalzo, Joseph A2 - Loscalzo, Joseph A2 - Fauci, Anthony A2 - Kasper, Dennis A2 - Hauser, Stephen A2 - Longo, Dan A2 - Jameson, J. Larry PY - 2022 T2 - Harrison's Principles of Internal Medicine, 21e AB - Pulmonary hypertension (PH) is a heterogenous disease involving pathogenic remodeling of the pulmonary vasculature, which increases pulmonary artery pressure and vascular resistance. The most common causes of PH are left heart or primary lung disease; PH is also observed in some patients as a late complication of luminal pulmonary embolism. Pulmonary arterial hypertension (PAH) is an uncommon, but distinct, PH subtype characterized by the interplay between molecular and genetic events that cause an obliterative arteriopathy and symptoms of dyspnea, chest pain, and syncope. If left untreated, PH carries a high mortality rate, largely owing to decompensated right heart failure. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/23 UR - accessmedicine.mhmedical.com/content.aspx?aid=1190498908 ER -