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KMID : 1011920100110040049
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International Journal of Arrhythmia
2010 Volume.11 No. 4 p.49 ~ p.52
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A case of J wave syndrome with electrical storm and early repolarization pattern
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Choi Jong-Il
Kim Young-Hoon
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Abstract
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Early repolarization, characterized by an elevation of the QRS-ST junction and QRS notching or slurring (J wave), has been considered a benign electrocardiographic manifestation. However, it was recently reported that this ECG pattern in leads other than V1 through V3 is associated with a risk for ventricular fibrillation. The development of ventricular fibrillation is known to be determined by the location of early repolarization, the magnitude of the J wave, and the degree of ST elevation. Several studies suggested that the J wave may be caused by transmural differences in the transient outward current (Ito)-mediated action potential notch. We experienced a case of J wave syndrome presenting with electrical storm, which was managed with administration of pacing and oral quinidine.
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KEYWORD
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early repolarization, J wave, ventricular fibrillation, electrical storm, quinidine
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