Atrial fibrillation is a medical condition of the heart. It is also known as an aortic regurgitation. This condition involves the rapid contraction of the atrium to push blood into the ventricles. This is the movement that produces the first heart sound.
The flow of blood is faster than what would be normal as the atria of the heart do not have time to fill properly before the next contraction. Thus the heart does not go through the normal contraction but does so at a rapid pace. There can be almost as many as 140-180 beats per minute. Anyone with atrial fibrillation will be able to feel that his pulse rate while at rest is quite fast.
There are a number of conditions which can lead to the atria contracting at such a rapid rate.
One cause includes hyperthyroidism that produces a high amount of thyroid hormone. This overactive thyroid can lead to atrial fibrillation.
Any breathing problem such as a lung infection caused by pneumonia or a pulmonary embolism can cause atrial fibrillation. Atrial fibrillation can also be secondary to heart valve disease.
The most common signs and symptoms associated with atrial fibrillation is a low blood pressure, dizziness, sweating and fainting. Some people have turned to the massage technique of acupressure to find relief from their atrial fibrillation.