Tiny particles in blood may signal hidden heart risk in hypertensive children

This study investigates whether microscopic particles shed from blood vessels, called endothelial extracellular vesicles, can serve as early warning signs of blood vessel damage in children with newly diagnosed, untreated high blood pressure. Researchers will compare these particles between children with normal blood pressure and those with hypertension, and check how they relate to blood pressure levels and blood vessel function. The goal is to better understand how high blood pressure injures vessels early in life and to explore non-invasive ways to predict future heart risk.