This Medical Video:
Atrial Fibrillation is the most common heart rythmn abnormatlity and
is very common as you age. Atrial fibrillation is a condition in
which the top chambers of the heart, the Atrium are fibrillating,
rather than having a regular synchronized contraction. One of the
worst complications of Atrial Fibrillation can be Stroke. There are
very good treatments of Atrial Fibrillation. This animated video is
an overview of Atrial Fibrillation.