The blood circulates around the body 24 hours a day 7 days a week. Heart of a normal person has a regular rhythm, which allows enough oxygen and nutrients to reach all organs. In some individuals, ...

The implantable pacemaker, a medical marvel that has extended millions of lives since its invention nearly 60 years ago, is getting a 21st century makeover. First came a wireless version; these ...

A pacemaker modified for newborns' tiny bodies safely and effectively stabilized their heart rhythms for up to two years, according to new research published in Circulation: Arrhythmia and ...