Peripheral Pulmonary Artery Stenosis (PPAS)
Definition
Peripheral pulmonary artery stenosis (PPAS) is a medical condition characterized by the narrowing of the peripheral branches of the pulmonary arteries, which carry blood from the heart to the lungs for oxygenation. This narrowing can lead to reduced blood flow, increased pressure in the pulmonary arteries, and potential complications such as pulmonary hypertension and right heart failure.