Key clinical message
Citrobactor freundii , an opportunistic bacterium, can infect residual dissections in the descending aorta, and the resulting infectious aortic aneurysm could rupture in a week.
We found that a rifampicin-soaked prosthesis and omental flap wrapping were effective methods to prevent vascular prosthesis infection.
Keywords: Ruptured aortic aneurysm, Citrobacter freundii , anatomical revascularization, omental flap wrapping