Endograft explantation and in situ reconstruction to treat infections can be performed safely. Extra-anatomic bypass may be used in high-risk patients. Resection of all infected aortic wall is recommended to prevent anastomotic breakdown. Despite high early morbidity, the risk of long-term graft-related complications and reinfections is low.
II-EVAR of IIAAs is associated with fewer complications and shorter hospital stay compared with OR. Open and endovascular IIA reconstructions have very good long-term patency, and preservation of IIA flow is associated with higher freedom from buttock claudication.
duplex and CTA with complete unilateral carotid occlusion between 2000 and 2009. CTA was used to obtain diameter and cross-sectional area measurements of carotid stenosis. Percent stenosis was calculated using the NASCET technique with both diameter and cross-sectional area measurements. Pearson's correlation coefficients were generated to detect congruency between duplex velocity, diameter-derived stenosis, and crosssectional area-derived stenosis.Results: A total of 20 patients were included. Correlation coefficients for diameter-based stenosis were: r ϭ 0.698 (P ϭ .001) for Ͻ 50% stenosis, r ϭ 0.375 (P ϭ .103) for 50% to 79% stenosis, and r ϭ 0.490 (P ϭ .028) for Ն 80%. Correlation coefficients for cross-sectional area measurement were: r ϭ 0.903 (P Ͻ.001) for Ͻ 50% stenosis, r ϭ 0.802 (P Ͻ.001) for 50% to 79% stenosis, and r ϭ 0.866 (P Ͻ.001) for Ն 80% stenosis.Conclusions: In the setting of contralateral carotid artery occlusion, duplex ultrasound had a higher correlation with cross-sectional area-derived stenosis than with traditional diameter-derived measurements on CTA. For this subgroup of patients, cross-sectional area measurements may be more reflective of the duplex-derived data due to the ability of CTA to delineate more complex carotid bulb anatomy. Additional studies are needed to correlate cross-sectional data and clinical outcomes.
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