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Persistent Abnormal Value of Late Potential in Brugada Syndrome Associated with Hypokalemia

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Hypokalemia accentuates the electrocardiographic (ECG) pattern of Brugada syndrome. We report two patients with Brugada syndrome and hypokalemia-induced lethal events. Despite concealing the typical ECG pattern with normalization of serum potassium levels, late potentials were persistently detected by signal-averaged ECG, even at the 18-month follow-up. An implantable cardioverter defibrillator was inserted to prevent sudden cardiac death.

Ann Noninvasive Electrocardiol 2011;16(1):104–106
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Keywords: Brugada syndrome; hypokalemia; late potential

Document Type: Research Article

Affiliations: Department of Cardiology, Pulmonology, and Nephrology, Yamagata University School of Medicine, Yamagata, Japan

Publication date: January 1, 2011

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