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

Gianmarco de Donato; Edoardo PASQUI; Claudia Panzano; Brenda Brancaccio; Gaia Grottola; Giuseppe Galzerano; Domenico Benevento; Giancarlo PALASCIANO

doi:10.3390/polym13081196

journal article Open Access Apr 07, 2021

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

Gianmarco de Donato Edoardo PASQUI

Claudia Panzano Brenda Brancaccio Gaia Grottola Giuseppe Galzerano

Domenico Benevento

Giancarlo PALASCIANO

Polymers Vol. 13 No. 8 pp. 1196 · MDPI AG

View at Publisher Save 10.3390/polym13081196

Abstract

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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Details

Published: Apr 07, 2021
Vol/Issue: 13(8)
Pages: 1196
License: View

Authors

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Gianmarco de Donato