ArticleVascular health and risk management2024
Fatal Acute Limb Ischemia Due to Catastrophic Late Endograft Infection and Adjacent Arterial Infection After Endovascular Aneurysm Repair - A Case Report.
Article in Vascular health and risk management, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: We present a case of late endograft infection that progressed to the left iliac and femoral arteries, leading to left lower extremity gangrene, and the patient's death. Case: A 65-year-old male with a history of endovascular abdominal aortic aneurysm repair (EVAR) developed left acute limb ischemia (Rutherford category III) and abdominal pain. A CT scan showed significant gas formation around the endograft and complete occlusion of the left distal iliac artery to the femoral arteries. Despite undergoing hip disarticulation and wound care, aortic endograft removal was not possible due to a lack of replacement grafts. Microbiological cultures from arterial pus and urine identified multiple antibiotic-resistant extended-spectrum beta-lactamases (ESBL) producing Escherichia coli. Histopathological analysis of the common femoral artery specimen indicated chronic medium-sized arteritis characterized by endothelial erosion, fibrotic myocytes in the tunica media, and fibrosis of the adventitial layer with inflammatory cell infiltration. The patient succumbed in the ICU 6 days later due to uncontrolled sepsis. Discussion: Although the incidence of endograft infection after EVAR is low (20-75% morbidity and mortality), it poses significant risks. Sources are often hematogenous, stemming from urinary or respiratory tract infections, and infections extending to subsequent arteries are very rare; they could cause chronic arterial inflammation and, in the long term, may lead to thrombosis and limb ischemia. This case highlights a low-grade infection that emerged 3 months post-procedure. Diagnosis typically involves CT angiography to detect periaortic gas or fluid. Management of high-grade infections necessitates complete endograft removal and graft replacement with infection-resistant options. Conclusion: Endograft infections after EVAR, while rare, can have severe outcomes. Early diagnosis based on symptoms and CT-Scan. In high-grade infections, endograft removal is the gold-standard therapy, with ongoing follow-up post-EVAR being essential for prevention.
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