Mycotic Aortic Aneurysm Caused by Multidrug-Resistant Enterobacteriaceae in an Elderly Patient: A Diagnostic Challenge
DOI:
https://doi.org/10.51987/Rev.Hosp.Ital.B.Aires.v46i3.1325Keywords:
aortic aneurysm, aneurysm infected, Enterobacteriaceae, bacteremia, frailtyAbstract
We report the case of an 86-year-old patient with a complex urological history who presented with fever and generalized weakness. Bloodstream infection was documented and initially attributed to a urinary source, based on the presence of urolithiasis and a positive urine culture for multidrug-resistant Enterobacteriaceae. Targeted antibiotic therapy was therefore initiated.
However, the patient showed persistent fever and sustained elevation of inflammatory markers despite appropriate antimicrobial treatment. Computed tomography subsequently revealed a saccular aneurysm of the abdominal aorta, which was further confirmed as a mycotic aneurysm by positron emission tomography. Given the patient’s advanced age and frailty, a conservative management strategy with prolonged antibiotic therapy was selected. The patient showed a favorable clinical outcome.
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Copyright (c) 2026 Anabel M. Games, Sofía Rossetti, Ana Braslavsky, Ignacio Martingano, Tomás Barrera
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