Hearing that you might need a stent or a pacemaker can feel overwhelming, especially if you're not quite sure what either device actually does. "A stent and a pacemaker treat entirely different heart ...

A 76-year-old woman with known ischemic cardiomyopathy, a left ventricular ejection fraction of 25%, and a previously inserted pacemaker presents to her cardiologist concerned that there is a problem ...

Your heart's job is to keep your pulse steady to pump blood throughout your body. Sometimes your heart rate is slower when you're relaxing, and sometimes it's faster when you're exercising or stressed ...

In 1992, an episode of the iconic TV show Law & Order aired a storyline that now feels eerily prescient. The episode revolved around a teenage boy who dies due to a faulty pacemaker. As detectives dig ...

Dear Doctor Roach: What’s the difference between a pacemaker and a defibrillator? -- T.S.B. Answer: Both are implantable ...

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 ...

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 ...