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Patterns of ST abnormalities in leads V1 to V3 in Brugada syndrome*

Patterns of ST abnormalities in leads V1 to V3 in Brugada syndrome*
Feature Type 1 Type 2
J wave amplitude ≥2 mm ≥2 mm
T wave Negative Positive or biphasic
ST-T configuration Coved type Saddle back
ST segment (terminal portion) Gradually descending Elevated ≥1 mm
ECG: electrocardiographic.
* In contemporary studies of Brugada syndrome, the focus has generally been on ECG findings in leads V1 and V2 only.
Modified with permission from: Wilde AA, Antzelevitch C, Borggrefe M, et al. Proposed diagnostic criteria for the Brugada syndrome. Eur Heart J 2002; 23:1648. Copyright © 2002 Elsevier Science.
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