| Intravascular ultrasound assessment of cobalt chromium versus stainless steel drug-eluting stent expansion. | |
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MedLine Citation:
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PMID: 20403478 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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It is not clear whether the thin struts and different alloy of a cobalt chromium stent will cause greater acute stent recoil compared to conventional stainless steel stents. We used postintervention intravascular ultrasound (IVUS) examinations to study 99 patients with 116 stented lesions: 61 Xience/Promus stents (cobalt chromium stent group) and 27 Taxus Libert? and 28 Cypher stents (stainless steel stent group). The IVUS images were obtained before and immediately after stent implantation with only the stent-delivery balloon. The ratio of the IVUS-measured to manufacturer-predicted stent diameter and area was the measure of acute stent recoil and expansion. The baseline patient characteristics, lesion morphology, and procedural details were comparable between the 2 groups. The ratio of the IVUS-measured to manufacturer-predicted stent diameter and area was 0.74 versus 0.73 (p = 0.57) and 0.63 versus 0.63 (p = 0.69), respectively, for the cobalt chromium and stainless steel stents. In conclusion, the acute performance of Xience/Promus was similar to that of previous stainless steel stents, and the thinner cobalt chromium metallic platform did not compromise the radial strength of the stent. |
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Authors:
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Yong He; Akiko Maehara; Gary S Mintz; Harpreet Bharaj; Celia Castellanos; Srinivas Kesanakurthy; Xiaofan Wu; Ning Guo; So-Yeon Choi; Martin B Leon; Gregg W Stone; Roxana Mehran; Leroy E Rabbani; Jeffrey W Moses |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: The American journal of cardiology Volume: 105 ISSN: 1879-1913 ISO Abbreviation: Am. J. Cardiol. Publication Date: 2010 May |
Date Detail:
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Created Date: 2010-04-20 Completed Date: 2010-06-15 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0207277 Medline TA: Am J Cardiol Country: United States |
Other Details:
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Languages: eng Pagination: 1272-5 Citation Subset: AIM; IM |
Copyright Information:
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Copyright 2010 Elsevier Inc. All rights reserved. |
Affiliation:
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Cardiovascular Research Foundation, Columbia University Medical Center-New York Presbyterian Hospital, New York, NY, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Angioplasty, Transluminal, Percutaneous Coronary / methods* Chromium Alloys / pharmacology* Coated Materials, Biocompatible* Coronary Stenosis / surgery*, ultrasonography Coronary Vessels / ultrasonography Drug-Eluting Stents* Female Follow-Up Studies Humans Male Postoperative Period Prosthesis Design Reproducibility of Results Retrospective Studies Stainless Steel* Ultrasonography, Interventional / methods* |
| Chemical | |
Reg. No./Substance:
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0/Chromium Alloys; 0/Coated Materials, Biocompatible; 12597-68-1/Stainless Steel |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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