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Late potentials

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Late potentials are thought to be caused by early afterdepolarizations of cells in the right ventricle (in [[ARVD]]). Their amplitude is often too small to show up on a normal ECG. However, when multiple QRS recordings (typically 250 consecutive QRS complexes) are averaged, random noise is filtered out and late potentials can show up.
[[Image:late_potentials.svgpng|thumb]]
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! Criteria for late potentials on a signal averaged ECG <cite>simson</cite><cite>Breithardt</cite>

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