When Sarah and Michael Oliveri went to their 20-week ultrasound for their third pregnancy, they thought to knew what to expect. Their previous visit had been stressful — doctors had detected an ...

MIT engineers have developed a noninvasive pacemaker that stimulates the heart using ultrasound. The design could one day ...

Sizing as small as a nickel, as thin as a pill, this pacemaker used highly progressive technology to become of use cardiac patients. During a trial run, this Medtronic Micra Transcatheter Pacing ...

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 ...

The blood circulates around the body 24 hours a day 7 days a week. Heart of a normal person has a regular rhythm, which allows enough oxygen and nutrients to reach all organs. In some individuals, ...

A pacemaker is a small, battery-powered device that controls the heartbeat. Our heartbeats are controlled by a highly efficient, biological electrical system that ensures our heart steadily pumps ...

A new, temporary pacemaker is smaller than a grain of rice. John A. Rogers / Northwestern University Researchers have developed the smallest temporary pacemaker ever created. It’s littler than a grain ...

The implantable pacemaker, a medical marvel that has extended millions of lives since its invention nearly 60 years ago, is getting a 21st century makeover. First came a wireless version; these ...