Late potentials
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.
Criteria for late potentials on a signal averaged ECG [1][2] |
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References
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- Error fetching PMID 2007727: