Novel Coronary Stent Platforms

Bon-Kwon Koo; Peter J. Fitzgerald

doi:10.4070/kcj.2008.38.8.393

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Koo and Fitzgerald: Novel Coronary Stent Platforms

Review

Korean Circulation J 2008;38(8):393-397.

Published online: 20 January 2008

DOI: https://doi.org/10.4070/kcj.2008.38.8.393

Novel Coronary Stent Platforms

Bon-Kwon Koo, MD^1,^2,, Peter J. Fitzgerald, MD²

¹Department of Internal Medicine, Seoul National University College of Medicine, Cardiovascular Center and Cardiovascular Research Institute, Seoul National University Hospital, Seoul, Korea

²Stanford University Medical Center, Stanford, California, USA

Correspondence: Bon-Kwon Koo, MD, Department of Internal Medicine, Seoul National University College of Medicine, Cardiovascular Center and Cardiovascular Research Institute, Seoul National University Hospital, 28 Yeongeon-dong, Jongno-gu, Seoul 110-744, Korea Tel: 82-2-2072-2062, Fax: 82-2-3676-4103 E-mail: bkkoo@snu.ac.kr

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The stent has been a key part of percutaneous coronary intervention. The advent of drug-eluting stents has further expanded the indication for this technology with a lower overall rate of restenosis. However, the limitations of the current generation stent platforms have become more apparent as more complex are being treated with percutaneous coronary intervention. Coronary stenting sometimes results in a suboptimal outcome for challenging lesion subsets such as tortuous, calcified, bifurcating and multiple and long lesions. In this review, novel stent systems that have been developed to overcome the challenges surrounding current stent designs will be discussed.

Keywords: Coronary artery stenosis, Angioplasty, transluminal, percutaneous, coronary, Stents, Drug-eluting stents

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Fig. 1.

Crossing profile and flexibility (right lower)of the Sparrow^TM stent system.

Fig. 2.

The interdigitating stent design of the Custom NX^®DES system. Manipulation of the switch on the handle (Right) activates the separation of the interdigitated segment at a desired location; therefore, the operator can customize the stent length.

Fig. 3.

Designs of the Multilink Frontier^TM (upper) and TAXUS Petal^TM (lower) bifurcation stents.

Fig. 4.

Angiographic and intravascular ultrasound results of a bifurcation lesion treated with an Antares^TM stent. The ostial preservation structure (arrow) covers the side branch ostium to provide scaffolding.

Fig. 5.

The Stentys^TM coronary bifurcation stent. The struts can be disconnected using an angioplasty balloon to create side branch access and to achieve side branch ostial scaffolding as the struts are linked by small interconnections.

Fig. 6.

The design of the Tryton side branch stent^TM (Left)and the Sideguard^TM Ostium protection device^TM (Right).

Fig. 7.

The straight and conical configuration of the Axxess^TM (left upper)and Axxess LM^TM (for left main, left lower) stents and a longitudinal intravascular ultrasound view of a bifurcation lesion treated with the Axxess^TM stent and additional stents (Right).

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