Evaluation of a modified Cheatham-Platinum stent for the treatment of aortic coarctation by finite element modelling

JRSM Cardiovascular Disease
Barbara Eu BurkhardtTarique Hussain

Abstract

Stent implantation for the treatment of aortic coarctation has become a standard approach for the management of older children and adults. Criteria for optimal stent design and construction remain undefined. This study used computational modelling to compare the performance of two generations of the Cheatham-Platinum stent (NuMED, Hopkinton, NY, USA) deployed in aortic coarctation using finite element analysis. Three-dimensional models of both stents, reverse engineered from microCT scans, were implanted in the aortic model of one representative patient. They were virtually expanded in the vessel with a 16 mm balloon and a pressure of 2 atm. The conventional stent foreshortened to 96.5% of its initial length, whereas the new stent to 99.2% of its initial length. Diameters in 15 slices across the conventional stent were 11.6-15 mm (median 14.2 mm) and slightly higher across the new stent: 10.7-15.3 mm (median 14.5 mm) (p= 0.021). Apposition to the vessel wall was similar: conventional stent 31.1% and new stent 28.6% of total stent area. The new design Cheatham-Platinum stent showed similar deployment results compared to the conventional design. The new stent design showed slightly higher expansion, using the same delivery balloo...Continue Reading

References

Jul 7, 2011·EuroIntervention : Journal of EuroPCR in Collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology·Peter MortierBenedict Verhegghe
Jul 17, 2012·American Heart Journal·Richard E RingelKathy J Jenkins
Sep 9, 2015·EuroIntervention : Journal of EuroPCR in Collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology·Daria CosentinoSilvia Schievano
Dec 2, 2015·Cardiovascular Engineering and Technology·Tré R WelchCheng-Jen Chuong

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Citations

Jun 17, 2019·The International Journal of Cardiovascular Imaging·Barbara E U BurkhardtAnimesh Tandon

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Aortic Coarctation

Aortic coarctation is a congenital condition characterized by narrowing of the aorta. Discover the latest research on this disease here.

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