Revised duplex criteria and outcomes for renal stents and stent grafts following endovascular repair of juxtarenal and thoracoabdominal aneurysms

摘要: Objectives To assess outcomes and develop duplex scan criteria that will reliably determine the luminal status of covered uncovered renal stents following fenestrated branched endovascular repair. Methods A prospective database patients treated with endografts between 2001 2006 was reviewed. All evidence artery pathology including assessed peak systolic velocity (PSV) 200 cm/s, aortic ratio (RAR) >3.5, elevation serum creatinine >30%, computed tomography (CT) stenosis underwent further analyses medical chart review, a review CT imaging data. Correlations ultrasound scan, CT, angiographic, clinical were conducted receiver operator curve (ROC) analysis performed. Freedom from or occlusion determined by Kaplan-Meier differences log rank tests. Results total 518 arteries (287 patients). Mean follow-up 25 months. The estimated freedom at 12, 24, 36 months 95% (95% confidence interval [CI] 93-98), 92% (89-96), 89% (85-93) for stents, 98% (96-100), 97% (95-100), (91-100) (log P = .04). Secondary interventions performed in 20% who developed stenoses. Only one detected stenoses not secondary intervention progressed to occlusion. Duplex derived ROC correlating curved planar reconstruction (CPR) axial data calculated 60-99% in-stent be associated PSV >280 cm/s RAR >4.5. Occlusions best identified mid Conclusion Revised have been improve sensitivity specificity non-invasive interrogation aneurysm repair (EVAR). Covered are lower incidence thus recommended over use endografts.