The heart may be small, but its rhythm powers life. When something throws that rhythm off—especially after surgery—it can become a race against time to restore balance. For decades, doctors have ...

Add Yahoo as a preferred source to see more of our stories on Google. Roughly one percent of infants are born with heart defects every year. The majority of these cases only require a temporary ...

Patient families often think that there are no complications when a pacemaker’s battery is low, so they anticipate an easy swap of the pacemaker from .

Researchers at Northwestern University just found a way to make a temporary pacemaker that’s controlled by light—and it’s smaller than a grain of rice. A study on the new device, published last week ...

The tiny pacemaker sits next to a single grain of rice on a fingertip. The device is so small that it can be non-invasively injected into the body via a syringe. Northwestern University engineers have ...

Surgical procedure. Image by Pfree2014 - Own work, CC BY-SA 4.0 Surgical procedure. Image by Pfree2014 - Own work, CC BY-SA 4.0 A new, tiny device can be inserted with a syringe to act as a pacemaker.