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  • Title: [Acute Aortic Dissection with Rapidly Enlarged Aneurysm after Methicillin-resistant Staphylococcus Aureus Bacteremia].
    Author: Horie Y, Ohuchi S, Oyama S.
    Journal: Kyobu Geka; 2022 Nov; 75(12):1003-1006. PubMed ID: 36299153.
    Abstract:
    The patient is a 62-year-old man. He was referred to our hospital from a nearby clinic with a complaint of chest and back pain, and was urgently admitted with a diagnosis of Stanford type A (Debakey typeⅢbR) acute aortic dissection. During the course of his treatment, he developed a urinary tract infection caused by methicillin-resistant Staphylococcus aureus (MRSA). Thereafter, the patient developed bacteremia, and follow-up computed tomography( CT) showed a rapidly enlarging descending aortic aneurysm and a left external iliac artery( EIA) aneurysm. On day 49 after admission, thoracic endovascular aortic repair, left EIA resection, and right EIA-left femoral artery bypass were performed. However, a contrast-enhanced CT scan on day 70 of hospitalization revealed a type Ia endoleak and enlargement of the descending aortic aneurysm, so the patient underwent replacement of the descending aorta on day 84. Postoperatively, the patient needed time for recovery, but was discharged on day 158. Three years after discharge, there has been no recurrence of infection, and the patient has been visiting our outpatient clinic. We report a case of acute aortic dissection with rapidly enlarged aneurysm after MRSA bacteremia. This serious condition was succesfully cured with continued antibiotic treatment, two surgical resections and revascularization.
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