Atrial fibrillation (AF) is a particular type of heartbeat (arrhythmia) characterized by an extremely fast irregular rhythm.
When at rest, the healthy heartbeats between 60 and 90 times a minute, with the atria (the two upper chambers of the heart) beating slightly earlier than the ventricles (the two lower chambers of the heart). The rate and timing of contractions (beats) are regulated by electrical impulses generated by the sinoatrial node (a specialized group of cells that produce small...
The first thing I noticed about atrial fibrillation had nothing to do with my heart or chest. The first thing I noticed was that my lips... Read more »
Whenever I go to a doctor, I expect a clean bill of health. In this, I suspect I'm not very different from most people. Even if a symptom... Read more »
A look of concern, maybe even fear flashed across the face of the young woman. I had just told her mother, a spry woman of 73 years, that... Read more »
Q: My brother has atrial fibrillation problems. Is there anything that he eats that can cause his heart to act up or certain foods he... Read more »
Reader's Question: I was diagnosed with osteopenia. My doctor advised me to start taking Fosamax. My mother has atrial fibrillation. ... Read more »
Source: ADAM Encyclopedia
Atrial fibrillation/flutter is a common type of abnormal heartbeat in which the heart rhythm is fast and irregular. Alternative Names ... Read more »
Source: ADAM Encyclopedia
VF; Fibrillation - ventricular Prevention An implantable defibrillator can help prevent future VF episodes in some patients. Others may... Read more »
Source: ADAM Encyclopedia
Atrial septal defect (ASD) is a congenital heart defect in which the wall that separates the upper heart chambers (atria) does not close completely.... Read more »
Source: ADAM Encyclopedia
An atrial myxoma is a noncancerous tumor in the upper left or right side of the heart. It grows on the wall (atrial septum) that separates the two... Read more »
Source: HealthCentral Encyclopedia
Radon is a naturally occurring, inert, radioactive gas, derived from naturally occurring uranium deposits in the earth. It is colorless, odorless,... Read more »