title: Longitudinal deformation - price we pay for better deliverability of coronary stent platforms.
abstract: Coronary stents, especially drug eluting stents (DES), have revolutionized the practice of interventional cardiology. Newer stents are manufactured by altering basic design characteristics to tackle complex coronary morphologies more effectively. Alteration in one particular attribute might affect other attributes adversely. Even though, reduction in the number and alteration of the orientation of the connectors improves the stent flexibility and deliverability, it adversely decreases the axial strength of the stent with resulting longitudinal stent deformation. A 67 year old female underwent percutaneous coronary intervention for a mid left anterior descending artery stenosis with a 2.75 × 16 mm Promus Element stent (Boston Scientific, Natick, Massachusetts). The stent got longitudinally distorted during post-stent balloon dilatation which was effectively managed with further dilatation with non-compliant balloon.
authors.affiliation: Department of Cardiology, Institute of Cardiovascular Diseases, Madras Medical Mission, Chennai, Tamil Nadu, India. icvddoctors@mmm.org.in
authors.forename: Ezhilan
authors.initials: E
authors.lastname: Janakiraman
authors.forename: Vijayakumar
authors.initials: V
authors.lastname: Subban
authors.forename: Suma M
authors.initials: SM
authors.lastname: Victor
authors.forename: Ajit S
authors.initials: AS
authors.lastname: Mullasari
mesh_terms: D000368:Aged; D015906:Angioplasty, Balloon, Coronary / Q000009:adverse effects / Q000295:instrumentation*; D017023:Coronary Angiography; D023921:Coronary Stenosis / Q000000981:diagnostic imaging / Q000628:therapy*; D054855:Drug-Eluting Stents; D005260:Female; D006801:Humans; D011237:Predictive Value of Tests; D011474:Prosthesis Design; D016896:Treatment Outcome