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QRS axis

76 bytes added, 16:55, 30 May 2009
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|nextname=Step 5: P wave morphology
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|mainauthor= [[user:Vdbilt|I.A.C. van der Bilt, MD]]
{{clr}}{{box|<flashow>|height=350px|width=600px|</flashow>'''''Click and drag the arrow in the above animation to change the heart axis and see how the ECG changes.''''' 
The electrical heartaxis is an average of all depolarizations in the heart. The depolarization wave begins in the right atrium and proceeds to the left and right ventricle. Because the left ventricle wall is thicker than the right wall, the arrow indicating the direction of the depolarization wave is directed to the left.
For a lot of people, this is a difficult concept. The theoretic part seems difficult but by doing it a lot, it will become clear.
==How do you determine the electrical heartaxis==


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