Early Repolarization Syndrome is a condition where the electrical activity of the heart is altered, resulting in a specific pattern on an electrocardiogram (ECG). This pattern is known as the J wave, which is a positive deflection between the QRS complex and the ST segment. The presence of early repolarization is relatively common and is often seen as a benign variant in otherwise healthy individuals. However, in certain cases, it has been associated with an increased risk of ventricular arrhythmias and sudden cardiac death, particularly when the J wave is prominent or when other ECG abnormalities are present. read more >>

Early Repolarization Syndrome. ... The term early repolarization (ER) is used to characterize an anomaly on the electrocardiogram (ECG) consisting of appearance of a J wave on a normal heart beat pattern.read more >>