Articles

Aortic stenosis (AS) is a heart condition where the aortic valve narrows. The aortic valve is one of 4 main valves in the heart. Its job is to provide blood...

Aortic stenosis (AS) is one of the most common heart valve conditions. It affects millions of people around the world. With this heart condition, the aortic valve narrows, reducing the...

Aortic stenosis (AS) is a condition in which the aortic valve, which pumps blood from the heart to the rest of the body, becomes narrowed. (“Stenosis” means narrowing.) It is...

Atrial fibrillation, or AFib, is not common in children. But symptoms and treatment may be unique in children with AFib. The heart is made up of 4 rooms, or chambers...

Atrial fibrillation, or afib, is the most common abnormal heartbeat pattern (arrhythmia) in the world. Experts believe that about 3 in every 100 people have had afib at some point...

A clinical trial is a type of research. Research is the process scientists use to explain how our bodies work or why our bodies stop working well. Clinical trials are...

Clinical trials or studies have a language of their own. It helps to understand the common terms doctors use when talking about a clinical trial before you sign up. Here...

Clinical trials are medical studies that pose a question: Does a new treatment work better than older treatments? Each year, thousands of treatments are tested in controlled experiments called clinical...

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