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ST Morphology: Difference between revisions
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[[Image:early_repol.png|thumb|none|Characteristics of early repolarization]] | [[Image:early_repol.png|thumb|none|Characteristics of early repolarization]] | ||
'''Early repolarization''' is a term used for ST elevation without underlying disease. It probably has nothing to do with actual early repolarization. It is commonly seen in young men. It is important to discern early | '''Early repolarization''' is a term used for ST elevation without underlying disease. It probably has nothing to do with actual early repolarization. It is commonly seen in young men. It is important to discern early repolarization from ST elevation from other causes such as [[ischemia]]. Characteristics of early repolarization are:<cite>Kambara</cite> | ||
* an upward concave elevation of the RS-T segment with distinct or "embryonic" J waves | * an upward concave elevation of the RS-T segment with distinct or "embryonic" J waves | ||
* slurred downstroke of R waves or distinct J points or both | * slurred downstroke of R waves or distinct J points or both | ||
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* absence of reciprocal ST depression | * absence of reciprocal ST depression | ||
* large symmetrical T waves | * large symmetrical T waves | ||
Early repolarization in inferior leads (II, III en AVF) has recently been found to be associated with an increased risk of cardiac death (1 mm of ST elevation carried an OR of 1.3 and 2 mm an OR of 3.0 )<cite>Tikkanen</cite> | |||
{{clr}} | {{clr}} | ||
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#Otto pmid=8273952 | #Otto pmid=8273952 | ||
#Kambara pmid=133604 | #Kambara pmid=133604 | ||
#Tikkanen pmid=19917913 | |||
</biblio> | </biblio> | ||
}} | }} | ||
[[Category:ECG Course]] | [[Category:ECG Course]] | ||