BACKGROUND: Heart failure with reduced ejection fraction (HFrEF) is characterized by impaired contractility and high ...

Premature ventricular contraction (PVC) is a type of abnormal heartbeat, or arrhythmia. It happens when the heartbeat begins in the lower, rather than the upper, heart chambers. This creates an ...

Researchers at the University of California, Irvine, have developed a polymeric biohybrid cardiac device that harnesses the power of light to electrically and mechanically control living heart tissue ...

Researchers at UT Southwestern Medical Center have identified a previously unrecognized small protein in cells of the human heart that plays a key role in heart muscle contraction. The protein is made ...

If a person has left sided heart failure, the left side of their heart does not fill with enough blood or pump it effectively. Left sided heart failure can lead to right sided heart failure. Heart ...

The next time you train, remember: You’re not just building endurance. You’re upgrading your heart's software. You're ...

What Is the Heart Conduction System? The heart conduction system is made up of cells, nodes, and signals that help your heart to beat. In fact, the cardiac conduction system is responsible for our ...