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What are atrial fibrillation and atrial flutter?

Heart - wire system
The heart has an electric conduction system. From an area in the right atrium (right atrium) triggers electrical impulses these spreads throughout the heart through the conduction system of the left atrium and through the so-called AV node to both chambers at the heart (ventricles). These impulses trigger the contraction over the heart that causes blood inside the heart, is pumped into the body's blood vessels. It normally causes a contraction in the anterior chamber to a contraction in the main chamber.

In atrial fibrillation and atrial flutter triggered impulses much faster than normal upper chambers, the atria, contract faster than normal and faster than the principal chamber. Atrium and the main chamber thus follow their rhythm. This allows the pumping of the heart becomes less efficient.

what is the difference between atrial fibrillation and atrial flutter

Atrial fibrillation and atrial flutter due to the same disease mechanism, the difference lies in the anterior chamber pulls together faster in atrial fibrillation. Atrial flutter is, in other words, a slower variation than atrial fibrillation. When the anterior chamber sends too many impulses to the foremost chamber, some of these impulses are filtered out before reaching the main chamber. If the main chamber had followed the speed of the anterior chamber would lead to ventricular fibrillation, a condition which in practice means cardiac arrest. It fortunately causes atrial fibrillation as well as never to ventricular fibrillation

It is estimated that approximately 45 000 people suffer from atrial fibrillation.

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