Rationale for a new registry on EVAR: The EXTREME study

Sirignano, Pasqualino; Mansour, Wassim; Capoccia, Laura; Speziale, Francesco

doi:10.1016/j.amsu.2017.07.035

Cited by 5 publications

(1 citation statement)

References 10 publications

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“…Challenging anatomies, vessel calcification and thrombosis, iliac vessel tortuosity and complex aortic neck have represented during time some important issues that technological development and research have faced, in order to increase the feasibility and durability of EVAR [ 43 , 44 ]. Ultimately, neck enlargement and type I and II EL are the drawbacks of traditional EVAR devices, which have justified the search for different technologies to seal the aneurysms based on polymers’ use [ 45 , 46 , 47 , 48 ].…”

Section: Polymer and Endovascular Aneurysm Repairmentioning

confidence: 99%

The Polymer-Based Technology in the Endovascular Treatment of Abdominal Aortic Aneurysms

et al. 2021

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An abdominal aortic aneurysm (AAA) is a dilatation of the abdominal aorta that progressively grows until it ruptures. Treatment is typically recommended when the diameter is more than 5 cm. The EVAR (Endovascular aneurysm repair) is a minimally invasive procedure that involves the placement of an expandable stent graft within the aorta to treat aortic disease without operating directly on the aorta. For years, stent grafts’ essential design was based on metallic stent frames to support the fabric. More recently, a polymer-based technology has been proposed as an alternative method to seal AAA. This review underlines the two platforms that are based on a polymer technology: (1) the polymer-filled endobags, also known as Endovascular Aneurysm Sealing (EVAS) with Nellix stent graft; and (2) the O-ring EVAR polymer-based proximal neck sealing device, also known as an Ovation stent graft. Polymer characteristics for this particular aim, clinical applications, and durability results are hereby summarized and commented critically. The technique of inflating endobags filled with polymer to exclude the aneurysmal sac was not successful due to the lack of an adequate proximal fixation. The platform that used polymer to create a circumferential sealing of the aneurysmal neck has proven safe and effective.

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