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Asbestos-related lung diseases are caused by exposure to asbestos fibers.

Some congenital heart defects are diagnosed during pregnancy or soon after birth. Others may not be diagnosed until adulthood. Your or your child’s doctor will perform a physical exam and order diagnostic tests and procedures based on what he or she finds in the physical exam.

A nuclear heart scan is an imaging test that uses special cameras and a radioactive substance called a tracer to create pictures of your heart.

Percutaneous coronary intervention (PCI), also known as coronary angioplasty, is a nonsurgical procedure that improves blood flow to your heart.

Sleep studies are painless, noninvasive tests that measure how well you sleep and how your body responds to sleep problems. The more common sleep studies monitor and record data about your body during a full night of sleep.

A ventricular assist device (VAD) is a mechanical pump that supports heart function and blood flow in people who have weakened hearts. These devices can support the function of the left, right, or both heart ventricles.

El término enfermedad de células falciformes describe a un grupo de trastornos hereditarios de los glóbulos rojos. Las personas con enfermedad de células falciformes tienen una hemoglobina anormal, llamada hemoglobina S o hemoglobina falciforme, en sus glóbulos rojos. La hemoglobina falciforme causa que los glóbulos rojos cambien su forma a una medialuna u hoz de hoja curva.

Buildup of plaque and blood clots causing blockage of an artery that supplies oxygen-rich blood to the brain can cause an ischemic stroke, while sudden bleeding from causes such as high blood pressure can result in a hemorrhagic stroke.

The signs and symptoms of a stroke vary. They often develop quickly and may include sudden weakness, paralysis, confusion, trouble speaking, changes in vision, trouble breathing, dizziness, loss of consciousness, and a sudden severe headache. After you’ve had a stroke, you may develop other complications such as blood clots, muscle weakness, problems swallowing, pneumonia, and loss of bladder control.

Peripheral artery disease happens when plaque builds up in the arteries that carry blood to your head, organs, and limbs. Plaque buildup leads to atherosclerosis, which limits oxygen-rich blood flow to your organs and other parts of your body. This Health Topic focuses on peripheral artery disease that affects blood flow to the legs.