Exercise-induced torsades de pointes as an unusual presentation of cardiac sarcoidosis: A case report and review of literature

Figure 1 Resting electrocardiogram on presentation, showing first degree atrioventricular block and QTc at 450 ms.

Figure 2 Exercise stress test, showing multifocal ventricular extrasystoles and torsades de pointes.

Figure 3 Cardiac electrophysiology study, showing a sustained induced ventricular tachycardia.

Figure 4 T1-weighted cardiac magnetic resonance image with delayed enhancement. A: Hyperenhancement of the papillary muscles (arrows); B: Patchy transmural fibrosis of the septum (arrow).

Figure 5 Episode of nonsustained ventricular tachycardia during implantable cardiac defibrillator interrogation stopped by an antitachycardia pacing run.