Propafenone administration can unmask the concealed form of the Brugada phenomenon on ECG in patients with frequent ventricular premature beats.
Propafenone may unmask concealed Brugada pattern; single case leaves open need for ECG screening or prospective validation.
A case report of a patient with frequent ventricular premature beats but with an otherwise normal ECG and no structural heart disease. Propafenone in therapeutical doses unmasked the ECG picture of the Brugada phenomenon.
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Matana et al. (2000) studied this question.
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