CHICAGO — When a female patient received a pacemaker at the Frankel Cardiovascular Center at the University of Michigan, Ann Arbor, Michigan, and died shortly after with the brand-new and fully ...

Mechanical and electrical energy are linked and can be exchanged back and forth. Just like ultrasound converts electrical voltage into pressure or sound, we can engineer similar materials onto ...

With heart failure, the heart becomes enlarged and its electrical systems become stretched. This interferes with how the parts of the heart coordinate to contract and pump blood, making it inefficient ...

Pacemakers are medical devices implanted in the body to regulate heart rhythms. They're composed of electronic circuits with batteries and leads anchored to the heart muscle to stimulate it. However, ...

A brisk walking pace, and the amount of time spent at this speed, may lower the risk of heart rhythm abnormalities, such as atrial fibrillation, tachycardia (rapid heartbeat), and bradycardia (very ...

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 ...