Figure 2.

Intracardiac electrograms recorded by the implanted defibrillator in a Brugada patient without detectable T wave alternans who developed a rapid polymorphic ventricular tachycardia during follow‐up. The upper panel shows the intracardiac bipolar electrogram, the middle panel shows the far field electrogram (coil versus can), and the lower panel shows the marker channel. On the right part of the recording, the defibrillator delivers a shock that successfully restores sinus rhythm. Note that the early ST segment is elevated after the ICD shock.