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 ...
In the normal heart, the lower chambers (ventricles) pump at the same time and in sync with the heart's upper chambers (atria). Cardiac resynchronization therapy (CRT), also called biventricular ...
The U.S. Food and Drug Administration has cleared a minimally invasive pacemaker-implant system from Medtronic that attaches to the inside of the heart in a way that some physicians believe is more ...
The sinoatrial (SA) node is the natural pacemaker of the heart. It generates electrical impulses that cause the heart’s chambers to contract, setting the heart rate. The SA node typically generates 60 ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results