One night when Blackwell was eleven, a fire destroyed her father's business. In 1832, the family emigrated to the United States and set up a refinery in New York City. The Blackwells were very religious Quakers, believing that all men and women were equal in the eyes of God.
What causes atrial flutter? Atrial flutter may be caused by abnormalities of the heart, by diseases of the heart, or by diseases elsewhere in the body that affect the heart. Atrial flutter may also be caused by consuming substances that change the way electrical impulses are transmitted through the heart. Atrial flutter can occur after open heart surgery.
Atrial Flutter Overview. Atrial flutter is an abnormality of the heart rhythm, resulting in a rapid and sometimes irregular heartbeat. Such abnormalities, whether in the rate or regularity of the heartbeat, are known as arrhythmias. The beating of the heart is controlled by electrical impulses.