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Παρασκευή 18 Αυγούστου 2017

Long-term Outcome of Endovascular Treatment for Mycotic Aortic Aneurysm

Publication date: Available online 18 August 2017
Source:European Journal of Vascular and Endovascular Surgery
Author(s): C.-M. Luo, C.-Y. Chan, Y.-S. Chen, S.-S. Wang, N.-H. Chi, I.-H. Wu
Objective/BackgroundEndovascular repair (EVAR) of mycotic aortic aneurysm (MAA) has become an alternative treatment for high risk patients. The aim of this study was to evaluate long-term survival and outcomes.MethodsRetrospective analysis of 40 consecutive patients with MAAs undergoing EVAR and subsequent intravenous antibiotic treatment between September 2009 and April 2015. Follow-up was truncated on 30 April 2015. Uni- and multivariate logistic regression were used to assess risk factors of adverse outcomes. Cumulative survival was calculated using the Kaplan–Meier method.ResultsMedian age at repair was 73 years (range 48–88 years) and 31 (77%) were men. Eleven (27%) patients were infected with Salmonella, 12 (30%) with non-Salmonella species, and 17 (42%) had negative cultures. Anatomical locations included the aortic arch/thoracic area in 10 (25%), the paravisceral area in seven (17%), and the infrarenal area in 23 (57%). Ten (25%) patients presented with aneurysm rupture and underwent emergency repair. Median follow-up was 25 months (range 1–69 months). Cumulative 1 and 5 year survival rates were 71% and 53%, respectively. Persistent or recurrent infection occurred in 20% (n = 8). Patients with persistent infection were treated with long-term medical therapy, but all died (75%; n = 6) within 6 months of repair. No survival difference was found between patients with or without Salmonella infections. However, there was a trend toward better survival in culture negative patients.ConclusionEVAR of MAA is an acceptable alternative treatment of MAA. However, persistent infection after endovascular treatment does occur and is often fatal without surgical treatment.



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