Arritmias ventriculares como manifestación de sarcoidosis cardiaca primaria

Cardiac involvement is increasingly being observed in patients with sarcoidosis and is associated with a poor prognosis. Although environmental and genetic factors play a part in its pathogenesis, the aetiology of cardiac sarcoidosis is still not clear. The clinical signs include anomalies in atrial-ventricular conduction, arrhythmias, and congestive cardiac failure. It is an extremely difficult condition to diagnose as the clinical signs are vague, and the sensitivity and specificity of the diagnostic models are limited. There is no well-defined optimum cardiac treatment, and although corticosteroids continue to be the mainstay of its management, there is little evidence on the dose or duration of the treatment. It is presented a case of a patient with isolated cardiac sarcoidosis that debuted with ventricular extrasystoles and progressed to cardiac failure and sustained ventricular arrhythmias.