Cardiac sarcoidosis and consequent arrhythmias

Myocardial involvement in patients with sarcoidosis can be difficult to diagnose, and requires a high index of suspicion and low threshold for screening. The presentation of cardiac sarcoidosis is variable, and can range from asymptomatic electrocardiographic changes to sudden cardiac death. This review provides an overview of the arrhythmic consequences of cardiac sarcoidosis, with emphasis on the electrophysiologist's role in recognition, diagnostic testing, and management of this rare disease.