Infective Endocarditis Presenting with Complete Atrioventricular Block in the Emergency Department

Endocarditis has been associated with conduction abnormalities because the infection potentially spreads through the septum and affects the conduction system. Aortic valve involvement commonly leads to this complication. Conduction abnormality induced by endocarditis often indicates extensive infection with possible abscess formation and has been demonstrated to be related to high mortality. Urgent surgical treatment is mandatory for better outcome. We presented a patient of endocarditis with a new atrioventricular block to alert physicians this rare but fatal etiology of conduction abnormalities.