QRS axis: Difference between revisions

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{{authors|
|mainauthor= [[user:Vdbilt|I.A.C. van der Bilt, MD]]
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|coauthor=
|moderator= [[user:Vdbilt|I.A.C. van der Bilt, MD]]
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==What is the electrical heartaxis?==
==What is the electrical heartaxis?==
[[Image:hartas2.jpg|thumb|De hartas geeft het gemiddelde aan van alle electrische ontladingen. Een normale hartas, zoals op dit plaatje, ligt tussen de -30 en +90 graden. Hier is de hartas ongeveer +45 graden.]]
[[Image:hartas2.jpg|thumb|The heartaxis indicates the average directiuon of the depolarization wave. A normal heartaxis, the picture shows an example, is between -30 and +90 degrees. Hier is de hartas ongeveer +45 graden.]]
[[Image:einthhartas.png|thumb|Hartas uit de originele publicatie van Einthoven. Reprinted from The Lancet, March 30 1912, Einthoven W.,
[[Image:einthhartas.png|thumb|Hartas uit de originele publicatie van Einthoven. Reprinted from The Lancet, March 30 1912, Einthoven W.,
''The Different Forms of The Human Electrocardiogram and Their Signification'', 853-861, 1912, with permission from
''The Different Forms of The Human Electrocardiogram and Their Signification'', 853-861, 1912, with permission from

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