Left ventricular dysfunction is the medical name for a weak heart pump. It's a condition that impacts about 9% of people over the age of 60, which is around 7 million Americans. In this Mayo Clinic ...

Panel A shows a cross-section of a normal heart (top) and an endomyocardial biopsy sample from a normal heart (bottom; with hematoxylin and eosin staining) that shows normal histologic characteristics ...

Medical researchers around the world continue to discover new ways Apple Watch can help save your life. A new study from researchers at the Mayo Clinic offers a deeper look at the Apple Watch’s ECG ...

A 70-year-old woman presents to the ED with chest pain, shortness of breath and diaphoresis. Her symptoms began about 24 ...

Cardiomyopathy is the leading cause of mortality in patients with DMD. Compared with their healthy counterparts, patients with DMD — including those with preserved left ventricular ejection fraction ...