Cardiac Sarcoidosis as a Cause of Total Atrioventricular Block: Importance of Differential Diagnosis
Jorge Elias Neto et al. Márcio Augusto Silva Ricardo Ryoshim Kuniyoshi Guilherme Futuro … Erick Sessa Merçon Petherson Susano Grativvol Fátima Cristina Pedrotti
Introduction
Sarcoidosis is a systemic granulomatous disorder of unknown cause that can affect virtually any organ. The extracardiac forms are usually benign and subjected to spontaneous remission. However, the prognosis may be unfavorable in case of cardiac involvement.
Symptomatic cardiac sarcoidosis (CS) is diagnosed in approximately 5% of patients with sarcoidosis. However, based on some autopsy series, the prevalence of subclinical CS can reach 25–30%.
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