What ECG pattern is typical of Brugada syndrome?

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Multiple Choice

What ECG pattern is typical of Brugada syndrome?

Explanation:
Brugada syndrome is identified on the ECG by a distinctive ST-segment elevation in the right precordial leads, particularly V1 to V3, with a coved-type morphology: an elevated J point followed by a downsloping ST segment and a negative T wave. This Type 1 Brugada pattern is the diagnostic form and can appear spontaneously or be revealed with a sodium-channel blocker challenge. The pattern reflects a sodium-channelopathy that raises the risk of ventricular fibrillation and sudden death, so recognizing it is crucial. Patterns like ST depressions in inferior leads, prominent U waves, or peaked T waves in aVR point to other conditions such as ischemia, electrolyte disturbances, or hyperkalemia, and do not define Brugada syndrome.

Brugada syndrome is identified on the ECG by a distinctive ST-segment elevation in the right precordial leads, particularly V1 to V3, with a coved-type morphology: an elevated J point followed by a downsloping ST segment and a negative T wave. This Type 1 Brugada pattern is the diagnostic form and can appear spontaneously or be revealed with a sodium-channel blocker challenge. The pattern reflects a sodium-channelopathy that raises the risk of ventricular fibrillation and sudden death, so recognizing it is crucial. Patterns like ST depressions in inferior leads, prominent U waves, or peaked T waves in aVR point to other conditions such as ischemia, electrolyte disturbances, or hyperkalemia, and do not define Brugada syndrome.

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