Key result
Normalization of serum potassium levels resulted in the complete resolution of the Type 1 Brugada ECG pattern within 4 hours.
Why the study?
Identifying reversible alternate pathology in patients with a Brugada Type 1 pattern is essential to ensure timely management and prevent unnecessary cardiac intervention.
Case Report (n=1)
Hyperkalemia can induce a reversible Brugada Type 1 ECG pattern (Brugada phenocopy) that resolves with correction of potassium levels, highlighting the importance of identifying reversible causes to avoid unnecessary cardiac interventions.
Electrolyte correction warrants consideration in Brugada-like ECGs; extends phenocopy reports but leaves prospective validation open.
We illustrate the case Brugada Type 1 pattern on electrocardiogram in a setting of hyperkalemia, changes which were reversible following normalization of serum potassium levels. Although Brugada Type 1 syndrome is associated with sudden cardiac death, a quick search for alternate reversible pathology is essential to timely management and avoid unnecessary cardiac intervention.
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Manne et al. (2021) conducted a case report in Hyperkalemia induced Brugada phenocopy (n=1). Hyperkalemia correction was evaluated on Resolution of ST-segment elevations. Normalization of serum potassium levels resulted in the complete resolution of the Type 1 Brugada ECG pattern within 4 hours.
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