Long-term outcomes of open and endovascular treatment of recurrent carotid artery stenosis - a 16-year retrospective single centre case series.

Background: The aim of this study is to evaluate perioperative as well as long-term outcomes in patients operated with carotid endarterectomy (CEA) or stenting (CAS) due to symptomatic or asymptomatic high-grade restenosis of the internal carotid artery (ICA). Patients and methods: In a retrospective analysis of our electronic database including 2980 patients who underwent carotid endarterectomy or stenting due to a symptomatic or asymptomatic high-grade stenosis of the ICA, between 2000 and 2016, we enrolled 111 patients with recurrent ICA stenosis. Results: An ipsilateral 2nd time restenosis (> 80 % in the asymptomatic and > 50 % in the symptomatic patients according to NASCET criteria) of ICA was detected in 13 patients (12 %); 3 of them were symptomatic. These patients were managed with either CEA (n = 5/38 %) or CAS (n = 8/62 %) with no perioperative stroke or death. The stroke-free survival rates at 2 and 8 years for CEA were 98 % and 98 % versus 100 % and 100 % for CAS respectively (P = .271). The type of the initial procedure (patch, CAS or interposition) did not play any significant role for the development of a 2nd time restenosis (P = .841). Conclusions: Redo-CEA/CAS seem to have similar results as primary procedures (as reported in the literature) with favorable periprocedural and long-term outcomes.

Prevalence of Bovine Aortic Arch Variant in Patients with Aortic Dissection and its Implications in the Outcome of Patients with Acute Type B Aortic Dissection.

OBJECTIVE/BACKGROUND: To investigate the prevalence of bovine arch (BA) among patients with type A and B aortic dissection, and to provide insight into the implication of this variation on the outcome of patients with acute or subacute type B aortic dissection (a/sTBAD). METHODS: This retrospective cohort analysis includes patients with a/sTBAD admitted between January 2006 and December 2016. Computed tomographic angiograms (CTAs) of patients referred because of type A aortic dissection were also re-evaluated with regard to the presence of BA. As a control group, 110 oncological patients who had undergone a chest CTA for disease staging during the study period were enrolled. A total of 154 patients with a/sTBAD and 168 with type A aortic dissection were identified during the study period. RESULTS: An overall prevalence of 17.6% for BA variants was revealed. The comparison between patients with aortic dissection and the control group showed no statistically significant difference in BA prevalence (17.7% vs. 17.3%; p = 1.0). No statistically significant difference in BA prevalence was observed when comparing patients with type A aortic dissection with those with type B aortic dissection (16.6% vs. 18.8%; p = .66). During a median follow-up period of 27.8 months, 30 patients died. The mortality rate among patients presenting a BA variant was 34.5%, whereas among patients without, it was 16.0% (p = .04). Multivariate analysis revealed the presence of a BA as an independent predictor of mortality (adjusted odds ratio 3.4, 95% confidence interval 1.2-9.8). CONCLUSION: The BA should be considered as a predictor of the outcome for patients with type B aortic dissection.