Q: My dad fainted and they told him needed a pacemaker. I would like to understand more about pacemakers. A: The first step is to understand the normal electrical activity of the heart. Each of the ...

Your heart has an internal pacemaker called the sinus node. It's a group of cells, located on top of your heart, that sends electrical signals into the heart and controls your heartbeat. Sometimes, ...

Scientists have discovered a previously unidentified potassium channel in cardiac cells that regulate the human heartbeat. This could be a significant step towards developing "biological pacemakers" ...

CHICAGO — One person’s used pacemaker is another person’s treasure. A program to refurbish used pacemakers could expand access to the lifesaving devices. In a clinical trial of nearly 300 people, ...

FALLS CHURCH, Virginia--Former Vice Pres. and Indiana governor Mike Pence now has a pacemaker, after surgery Wednesday in Virginia. The condition that led to his having the pacemaker is called ...

Heart problems are nothing new. Humans have been fascinated by electrocardiography since the era of Hippocrates (via St. Luke's Hospital Cardiology Department). With each passing century, medicine's ...

A pacemaker is a small electronic device that helps keep the heart beating regularly. It can represent a life-changing treatment for heart conditions such as arrhythmias. It is generally not too ...

Recycled pacemakers can function as well as new devices, according to a new study. These used and reconditioned devices have the potential to increase access to pacemaker therapy in low- and ...

Generally, pacemakers improve quality of life for individuals who have a condition causing bradycardia, or a slowed heart rate. However, because there is an electrical device implanted near your heart ...

The heart's regular rhythm is crucial to the delivery of oxygenated blood and nutrients to all the organs of the body. It is regulated by a bundle of cells called "the pacemaker," which use electrical ...