Aorto-cavitary fistula: a rare case of Enterobacter cloacae infective endocarditis complicated by aortic root abscess and fistula to the right ventricle

Enterobacter cloacae are a rare cause of infective endocarditis (IE). We present an interesting case of a 51-year-old intravenous drug user with E. cloacae IE of a prosthetic aortic valve and a fistula into the right ventricle. He underwent surgical repair and 6 weeks of intravenous meropenem.