"The Root of the Problem: Cardiobacterium Hominis Endocarditis Complicated by an Aortic Root Abscess"

Infective Endocarditis (IE) poses a persistent threat, with increasing incidence and mortality rates observed in recent decades. While gram-positive bacteria are the primary culprits, gram-negative organisms like Cardiobacterium hominis (C. hominis) from the HACEK group also contribute, albeit infrequently. We present a case illustrating the critical role of considering HACEK organisms, particularly C. hominis, in IE diagnosis.