Benign early repolarization

Benign early repolarization
Classic and new definitions of early repolarization with end-QRS notching and end-QRS slurring
ECG of a benign early repolarization in a 15-year-old male
SpecialtyCardiology
Frequency1-13%

Benign early repolarization (BER) or early repolarization is found on an electrocardiogram (ECG) in about 1% of those with chest pain. It is diagnosed based on an elevated J-point / ST elevation with an end-QRS notch or end-QRS slur and where the ST segment concave up. It is believed to be a normal variant.

Benign early repolarization that occurs as some patterns is associated with ventricular fibrillation. The association, revealed by research performed in the late 2000s, is very small.

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