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Editorial comment

Performance of stentgrafts in growing arteries: there is demand for super-adaptable devices

Department of Cardiovascular Surgery, University Hospital CHUV, Rue de Bugnon 46, 1011 Lausanne, Switzerland

^_* Corresponding author. Tel.: +41 26 426 7185; fax: +41 26 426 7314. (Email: martyb@h-fr.ch).

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The long-term impact of implanting stentgrafts on the behavior of growing arteries is still not fully understood. The ability of the aorta in its growing phase to react to and repair injuries induced by an implanted stentgraft makes this a unique and special area of research. Typically, a stented aortic segment containing either a bare stent or a stentgraft will develop stenosis, while the adjacent non-stented aortic segments grow and increase to their normal size and function as demonstrated by Siegenthaler et al. [1]. In clinical settings, stenting of aortic coarctation in adolescents usually requires redilation compensating for growth to avoid stenosis. Currently, the challenge facing stent and stentgraft design is the ability to adapt their geometries to the potentially large increase in the aortic dimensions . . . [Full Text of this Article]