Atrial Fibrillation and Ventricular Tachycardia in a Patient with Cardiac Sarcoidosis

Figures

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  Figure 1:. ECG showing sinus rhythm with a fractionated RBBB (arrow).

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  Figure 2:. CMR imaging scan demonstrating patchy, delayed enhancement throughout the left ventricular myocardium in a nonvascular distribution pattern. Arrows indicate regions of delayed enhancement in the sagittal (left) and transaxial (right) views.

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  Figure 3:. Cardiac 18F-FDG-PET scan showing myocardial 18F-FDG uptake. A: Extensive abnormal heterogeneous 18F-FDG myocardial uptake (thin arrow) and uptake of mediastinal lymph nodes (wide arrow). B: Overall decreased 18F-FDG uptake 10 months after the initial procedure following immunosuppressive therapy.

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  Figure 4:. A: Atrial and ventricular electrograms from a dual-chamber ICD showing non-sustained polymorphic ventricular tachycardia with ventriculoatrial dissociation. Arrhythmia correlates with episode of presyncope. B: An example of non-sustained monomorphic ventricular tachycardia.

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  Figure 5:. Twelve-lead ECG recorded at the time of admission for multiple presyncopal spells showing polymorphic premature ventricular contractions, normal QTc interval, and RBBB.