Microvolt T-wave alternans in early repolarization syndrome associated with ventricular arrhythmias: A case report
Alexander Edo Tondas1, Edwin Adhi Darmawan Batubara1, Novi Yanti Sari1
1Department of Cardiology and Vascular Medicine, Dr. Mohammad Hoesin General Hospital, Palembang, Indonesia.
Abstract:
Despite early repolarization (ER) syndrome being usually considered benign, its association with severe/malignant ventricular arrhythmias (VA) was also reported. Microvolt T-wave alternans (MTWA) is an electrocardiographic marker for the development of VA, but its role in ER syndrome remains unknown. A 90-second 6-lead electrocardiogram from an ER syndrome patient, acquired with the Kardia recorder, was analyzed by the enhanced adaptive matched filter for MTWA quantification. On average, MTWA was 50 μV, higher than what was previously observed on healthy subjects using the same method. In our ER syndrome patient, MTWA plays a potential role in VA development in ER syndrome.
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