A Case of Left-Sided Infective Endocarditis of Multiple Native Valves Complicated by Valve Leaflet Perforation, Multiple Septic Emboli, Thromboembolic Events, and Cardiac Arrhythmias.

Coagulase-negative staphylococci (CoNS) can uncommonly cause native valve endocarditis. We present a case of left-sided infective endocarditis of native valves presenting with splenic, lung, and brain infarcts along with aortic and significant mitral valve involvement with mitral valve perforation. The patient was also found to be in atrial flutter and atrial fibrillation. Left-sided endocarditis is reported to cause brain and spleen infarcts but pulmonary embolisms are usually a complication of right-sided endocarditis. Atrial fibrillation is also known to increase mortality in patients with infective endocarditis.