As the search for Savannah Guthrie's mother, Nancy, continues, a cardiologist explains how pacemakers work and if they can be used to track a missing person's location.

Information about Nancy Guthrie's pacemaker helped authorities piece together a new timeline in her kidnapping. Can the devices track you?

A new, tiny pacemaker — smaller than a grain of rice — developed at Northwestern University near Chicago could play a sizeable role in the future of medicine, according to the engineers who developed ...

Nancy Guthrie’s 2 a.m. pacemaker spike on the day she vanished could mean that the elderly woman was involved in a heart rate ...

WASHINGTON, D.C. – A healthy heart beats 60 to 100 beats per minute, but when that rate slows down, patients require a pacemaker. Traditional versions are bulky and ...

The world’s tiniest known pacemaker, a device smaller than a grain of rice, can be implanted using minimally invasive techniques and dissolves when no longer needed. Researchers described their ...

Dr. Srihari S. Naidu speaks with Parade to answer all our questions about pacemakers.

Smaller than a grain of rice, new pacemaker is particularly suited to the small, fragile hearts of newborn babies with congenital heart defects. Tiny pacemaker is paired with a small, soft, flexible ...

CHICAGO, IL—Reconditioned pacemakers carry the same low infection rate as new devices out to 90 days, according to preliminary data from the international My Heart Your Heart trial. The findings ...