Clinical significance of variants of J-points and J-waves: early repolarization patterns and risk

The variations in the electrocardiographic patterns of J-point elevations, and the complex of J-points and J-waves in early repolarization (ER), in conjunction with disparities in associated sudden cardiac death (SCD) risk, have lead to a recognition of the need to carefully classify the spectrum of...

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Bibliographic Details
Published in:European heart journal Vol. 33; no. 21; p. 2639
Main Authors: Junttila, M Juhani, Sager, Solomon J, Tikkanen, Jani T, Anttonen, Olli, Huikuri, Heikki V, Myerburg, Robert J
Format: Journal Article
Language:English
Published: England 01.11.2012
Subjects:
Adult
Aged
Arrhythmias, Cardiac - diagnosis
Arrhythmias, Cardiac - epidemiology
Brugada Syndrome - diagnosis
Brugada Syndrome - epidemiology
Death, Sudden, Cardiac - prevention & control
Electrocardiography
Female
Humans
Male
Middle Aged
Prevalence
Prognosis
Sports - physiology
ISSN:1522-9645, 1522-9645
Online Access:Get more information
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Summary:The variations in the electrocardiographic patterns of J-point elevations, and the complex of J-points and J-waves in early repolarization (ER), in conjunction with disparities in associated sudden cardiac death (SCD) risk, have lead to a recognition of the need to carefully classify the spectrum of these observations. Many questions about the pathogenesis of J-wave patterns, and the associated magnitudes of risk, remain unanswered, especially in regard to the risk implications in certain high-prevalence subpopulations such as athletes, children, and adolescents. Interest in these electrocardiography (ECG) patterns has grown dramatically in recent years, in large part because of the frequency with which these patterns are observed on routine ECGs. In this review, we discuss the current knowledge on the prevalence of different J-point/J-wave patterns and estimates of the magnitude of mortality and SCD risk associated with J-point elevations and J-waves, in what has become known as ER patterns.
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ISSN:1522-9645
1522-9645
DOI:10.1093/eurheartj/ehs110