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

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?

Unconfirmed media reports say Nancy Guthrie's pacemaker stopped syncing with her Apple devices. Here's what that means.

Abbott Laboratories is pushing the envelope with its pacemaker program. The Abbott, IL-based company has nabbed approval for what it is calling the first dual chamber leadless pacemaker. The Aveir ...