Endovascular Management of Mycotic Pseudoaneurysm After Pancreas Transplantation: Case Report and Literature Review.

Mycotic pseudoaneurysm is a rare complication of pancreas transplantation. Successful management relies on early diagnosis and expedient treatment comprising surgery and antibiotics. While the standard of care in recipients of pancreatic transplants is open repair of pseudoaneurysm with or without excision of the allograft, endovascular management has been reported. Endovascular repair is a less invasive treatment option with advantages of expedient control of hemorrhage, avoidance of adhesions with an open repair, and greater suitability for elderly and frail patients. We report a case of a 40-year-old recipient of a pancreas transplant who had a mycotic pseudoaneurysm managed with endovascular repair. A systematic search of PubMed-MEDLINE, Embase, and Cochrane Library was performed of all cases of mycotic aneurysms following pancreas or kidney transplantation managed with endovascular repair. There were 14 cases of mycotic aneurysms in transplant recipients managed with endovascular repair in the literature. Of those who received an endovascular stent as the only initial management strategy, 6 (54.5%) required a subsequent graft excision. Four (28.6%) patients required excision of their stent due to continued sepsis. There was 1 death from unrelated causes. Endovascular repair was a reasonable bridging technique to further definitive surgical treatment in our case. Endovascular management may be used with caution in high-risk patients. We advocate for prolonged antibiotic therapy combined with vigilant surveillance of the clinical response, and a low threshold for allograft excision in the event of clinical deterioration.

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