The Early Repolarization Pattern
Why the study?
After early repolarization was linked to sudden cardiac arrest due to idiopathic ventricular fibrillation, confusion over its definition motivated an agreed definition to facilitate future research.
Design
Consensus paper and review of definitions
Authors
Discussion
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Member takes
Key expert perspectives
Captured external expert commentary on this paper, strongest first. Original sources are linked where available.
“This statement, drafted by leading experts in the field of electrocardiology, provides an insightful review of the state of the art and state of confusion in the field, with thoughtful recommendations for standardization of terminology regarding the early repolarization pattern.”
“It's easy to mistake an ECG diagnosis of a true STEMI for early repolarization.”
Implication
Reduces risk of mistaking STEMI for early repolarization; extends research by standardizing uniform ECG criteria for future studies.
Key Points
- This paper aims to create a clear definition of early repolarization to aid future research.
- Reviewed various definitions of early repolarization.
- Identified electrocardiographic measures relevant to defining the pattern.
- Established criteria for early repolarization involving the Jp measure.
- An agreed definition of early repolarization was established, requiring Jp to be ≥0.1 mV.
- The presence of ST-segment elevation is not necessary for this definition.
PICO
P
Population
Early repolarization pattern
I
Intervention / Comparator
Agreed definition of early repolarization
Provides a standardized consensus definition for the early repolarization ECG pattern to resolve confusion and facilitate future research.
Cite This Study
Macfarlane et al. (2015) conducted a review in Early repolarization pattern. Agreed definition of early repolarization was evaluated. An agreed definition of early repolarization was established, requiring the peak of an end-QRS notch and/or the onset of an end-QRS slur (Jp) ≥0.1 mV, without requiring ST-segment elevation.