Add Yahoo as a preferred source to see more of our stories on Google. Electrocardiograms, or ECGs, record the electrical activity of your heart. Randy Faris/The Image Bank via Getty Images Your ...

Dear Doctor: My mom is 93, and her doctor says she needs a pacemaker to control a heart arrhythmia. How does a pacemaker work? Is the operation dangerous for someone her age? Dear Reader: A pacemaker ...

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, ...

Your heart runs on electricity! Discover how tiny sparks keep it beating — and how Buffalo inventor Wilson Greatbatch’s “happy accident” led to the pacemaker, a life-saving device that changed ...

An implant the size of a watch that zaps the heart with electric pulses could help thousands of people with heart failure – by cleverly changing the organ’s source of fuel. Healthy hearts mostly burn ...

CINCINNATI (WKRC) - One of the first patients to receive some high-tech heart help is saying thank you to the team at St. Elizabeth Health after they helped give him back part of his life. One of the ...