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Figure 1 Electrocardiogram of a 45-Year-Old Man in the Ventricular Fibrillation Group
This patient was eventually diagnosed as Brugada syndrome. Note that leads V1 to V3 do not show any ST-segment elevation. In contrast, the J-point elevation in leads II, III, and aVF is obvious. Note also the ventricular extrasystoles with short coupling interval. The very short coupling interval is best appreciated in lead V2.