The normal heartbeat is generated just like clockwork by electric signals sent out from a natural pacemaker known as the sinus node. Normal individuals have heart rates of between 60-90 beats per minute. This is actually slower than the natural pacemaker of the heart, partly because there is the slowing influence of the nervous system […]
Sinus Arrhythmia – What Is It?
What is Sinus Arrhythmia? What is sinus arrhythmia? Heartbeats are like clockwork. In the same way the second hand on a clock ticks regularly each second, the heart has an electrical impulse that is generated and leads to a heartbeat in a regular manner. The timing between each of these generated impulses is known as […]
PVC Heart Beats – Are They Dangerous?
PVC’s are common. Some people are troubled by just a few PVC’s where as others may have a PVC heart beat almost every other beat and not even notice it. Apart from being annoying to some (symptoms are sometimes described as heart flutter), are they of long-term significance? In this article we will look at […]
Afib with RVR – When The Heart Races Out Of Control
What Is Afib with RVR? Afib with RVR refers to atrial fibrillation with rapid ventricular rate. Usually the heart is like clockwork, the top (collecting) chambers beat then the bottom (main pumping) chambers sense this and also beat, and so on, in a nice regular fashion just like a clock ticking second after second. Usually […]