Medical research

Battery-free pacemaker reduces equipment to size of a dime

Researchers have developed and tested for the first time in vivo a miniaturized, battery-free pacemaker that supports optical and electrical multisite stimulation. The new device is powered wirelessly, omitting the weight ...

Alzheimer's disease & dementia

Ohio State implants first brain pacemaker to treat Alzheimer's

During a five-hour surgery last October at The Ohio State University Wexner Medical Center, Kathy Sanford became the first Alzheimer's patient in the United States to have a pacemaker implanted in her brain.

Cardiology

Rhythm is it: Ion channels ensure the heart keeps time

The heartbeat is the result of rhythmic contractions of the heart muscle, which are in turn regulated by electrical signals called action potentials. Action potentials result from the controlled flow of ions into heart muscle ...

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