Vote Here Now. Below is Newsmax's list of the 100 most influential business leaders in America. This list takes into account each candidatesâ net worth, the companyâs brand value, and the positions in both their relevant industries as well as the global business market.ote Here Now. Below is Newsmax's list of the 100 most influential business leaders in America. This list takes into account each candidatesâ net worth, the companyâs brand value, and the positions in both their relevant industries as well as the global business market.
What Causes an Arrhythmia? An arrhythmia can occur if the electrical signals that control the heartbeat are delayed or blocked. This can happen if the special nerve cells that produce electrical signals don't work properly. It also can happen if the electrical signals don't travel normally through the heart.
Arrhythmias often occur in people who do not have heart disease. In people with heart disease, it is usually the heart disease which is dangerous, not the arrhythmia. Arrhythmias often occur during and after heart attacks. Some types of arrhythmias, such as ventricular tachycardia, are serious and even life threatening.In the United States, arrhythmias are the primary cause of sudden cardiac death, accounting for more than 350,000 deaths each year.rrhythmias occur when the heartbeat starts in a part of the heart other than the sinus node, an abnormal rate or rhythm develops in the sinus node, or a heart conduction block prevents the electrical signal from traveling down the normal pathway.