Case Report
Copyright ©The Author(s) 2017. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Cardiol. Jan 26, 2017; 9(1): 60-64
Published online Jan 26, 2017. doi: 10.4330/wjc.v9.i1.60
Longitudinal deformation of a third generation zotarolimus eluting stent: “The concertina returns!”
Vasileios F Panoulas, Ozan M Demir, Neil Ruparelia, Iqbal Malik
Vasileios F Panoulas, Ozan M Demir, Neil Ruparelia, Iqbal Malik, Cardiology Department, Imperial College Healthcare NHS Trust, Hammersmith Hospital, London W120HS, United Kingdom
Vasileios F Panoulas, Ozan M Demir, National Heart and Lung Institute, Imperial College London, London SW7 2AZ, United Kingdom
Vasileios F Panoulas, Department of Cardiology, Royal Brompton and Harefield, NHS Foundation Trust, Harefield Hospital, Harefield, Greater London UB9 6JH, United Kingdom
Author contributions: Panoulas VF and Demir OM contributed equally to this work; Panoulas VF and Demir OM wrote the case report; Ruparelia N edited the manuscript and contributed to image formatting; Malik I reviewed and edited the manuscript.
Institutional review board statement: The study was reviewed and approved by the Imperial College Healthcare NHS Trust Institutional Review Board. Both patients provided informed consent.
Informed consent statement: All study participants provided informed written consent prior to study enrollment.
Conflict-of-interest statement: All authors declare no conflict of interest.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Dr. Vasileios F Panoulas, MD, PhD, MRCP, FESC, Department of Cardiology, Royal Brompton and Harefield, NHS Foundation Trust, Harefield Hospital, Hill End Road, Harefield, Greater London UB9 6JH, United Kingdom. v.panoulas@imperial.ac.uk
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Received: August 4, 2016
Peer-review started: August 5, 2016
First decision: September 2, 2016
Revised: September 15, 2016
Accepted: November 16, 2016
Article in press: November 17, 2016
Published online: January 26, 2017
Processing time: 167 Days and 17.6 Hours
Abstract

In the current case series we describe two cases of longitudinal stent deformation in ostial lesions treated with a new generation zotarolimus eluting stent and review current literature on longitudinal stent deformation. Historically not a common occurrence, longitudinal deformation occurred mainly in Promus Element everolimus eluting stents, which had only two rather than the commonly used 3 links between stent rings. Longitudinal deformation commonly occurs secondary to compression of the proximal edge of the stent by either the guide catheters, or intravascular balloons and imaging catheters. The degree of deformation however, depends on the longitudinal strength and design of the stent.

Keywords: Coronary angioplasty, Longitudinal stent deformation, Coronary stents, Procedural complications

Core tip: In the current case series we describe two cases of longitudinal stent deformation in ostial lesions treated with a new generation zotarolimus eluting stent and review current literature on longitudinal stent deformation.