Blood flow problems within the lungs could be driving long COVID in some children, according to scans using an advanced form of MRI. Children and teens with long COVID appear to have significantly ...

Reduced blood flow in the lungs could be causing long COVID symptoms in children An advanced form of MRI found lower blood ...

Tetralogy of Fallot with pulmonary atresia is a congenital heart defect that prevents blood from flowing to your lungs. Treatment typically includes surgery during infancy. Share on Pinterest SDI ...

Heart valves allow blood to flow one way and prevent it from flowing in the wrong direction. The tricuspid valve controls blood flow between the right atrium and right ventricle. The bicuspid or ...

High blood pressure (hypertension) causes thickening of the blood vessels and hardening of the arteries (arteriosclerosis). A study conducted by Brazilian researchers has shown for the first time that ...