When you have transthyretin amyloid cardiomyopathy (ATTR-CM), proteins called amyloids build up in your heart, stiffening the muscle and interfering with its ability to pump blood throughout the body.

Irregular heart rhythms, such as atrial fibrillation and atrial flutter, affect millions of Americans and can increase the risk of serious complications if left untreated. Understanding the warning ...

Atrial fibrillation (AFib) is an irregular and often very rapid heart rhythm, also called an arrhythmia and can create blood ...

New research from a multi-institutional team, published in Nature Cardiovascular Research, reveals that heart failure and atrial fibrillation share underlying genetic and molecular mechanisms, ...