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Brugada Phenocopy Induced by Electrolyte Disorder: A Transient Electrocardiographic Sign
Aysel Hunuk1, Burak Hunuk2, Ozlem Kusken1
1Department of Emergency Medicine, Fatih Sultan Mehmet Research and Education Hospital, Istanbul, Turkey.
Abstract:
Brugada syndrome (BrS) is an important cause of sudden cardiac death (SCD) with well-defined ST-segment elevation patterns on V1 -V3 . Observation of BrS-Type-electrocardiogram (ECG) patterns in medical conditions without true BrS is called "Brugada Phenocopy" (BrP). We present a case of 61-year-old male patient with hyperkalemia, hyponatremia, and BrS-Type-1 ECG pattern in the setting of acute postrenal failure. He was denying any syncope or family history of SCD. With normalization of electrolyte levels, BrS-Type-1-ECG resolved. Electrolyte disturbances are one of the most common reasons of BrP. Being aware of BrPs and differentiating from an unmasked BrS-ECG pattern could prevent patients from lethal consequences and unnecessary treatments.
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