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After Endurant stent grafting, the incidence of limb occlusion was low. Classifying patients as high risk vs low risk according to the algorithm used in this study may help define specific strategies to prevent limb occlusion and improve the overall results of endovascular aneurysm repair using the latest generation of stent grafts.

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Background: The aim of this paper was to evaluate a new technique called an ''extended'' provisional extension to induce complete attachment (e-PETTICOAT) technique. Methods: In this prospective single-center clinical study, the primary safety end mid-term remodeling is evaluated for the new endovascular technique. It was based on a standard Petticoat and limited Stabilize technique, extended by the placement of 2 covered stents within the abdominal bare metal stent as parallel iliac stent grafts down to the iliac bifurcations. Computed tomographic angiography was performed postoperatively to assess aortic remodeling after 12 and 24 months. Changes in aortic size and volumes of the false and true lumen were assessed. Results: Between January 2014 and December 2015, 17 patients were treated due to acute, complicated aortic dissection type III B, according to the DaBekey classification. All patients presented with branch vessel obstruction/compromise, including six cases with aortic impending rupture. A 100% technical success rate was recorded regarding the resolution of complications. Favorable remodeling was achieved in 100% of the cases. Complete false lumen thrombosis in the thoracic, infra-renal aorta and the iliac artery was noted. A small volume (9.51 ± 6.9 mL) contrast-enhanced false lumen in the abdominal aorta was observed in 76% of cases with stable aortic size after 1 and 2 years. No visceral branch occlusion, type I endo-leak, renal insufficiency or paraplegia was recorded in follow-up. Conclusions: The expanded PETTICOAT technique was feasible in achieving favorable remodeling in acute extensive aortic dissection. Extended followup is needed to ascertain long-term results. This article presents a series of 17 cases of a new endovascular method called E-PETTICOAT