Pacemaker therapy that boosts impaired heart rate (HR) response to exertion failed to improve exercise capacity or quality of life in patients with heart failure with preserved ejection fraction ...

University of Iowa researchers found using pacemakers to stimulate a patient’s heart rate can protect the heart from injury and mimic the benefits of exercise. Nearly 6.2 million adults in the U.S.

A pacemaker the size of a nickel can now be implanted in patients, report experts. When a lower heart rate is present, the heart is unable to pump enough oxygen-rich blood to the body during normal ...

Sometimes a slow heart rhythm can cause people to experience tiredness, difficulty with exercise, or dizziness and fainting. Although other problems can cause these symptoms (for example, blood loss ...