While modern pacemakers have become impressively compact and reliable, they still depend on finite batteries that eventually wear out. For many patients, that window of battery life is between five to ...

CRT is a surgical procedure in which doctors implant a pacemaker in both the right and left sides of the heart to help your heart’s chambers beat together. The goal is to improve heart pumping ...

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 ...