In vivo evaluation of axial integrity of coronary stents using intravascular ultrasound: Insights on longitudinal stent deformation.

MedStar author(s):
Citation: Catheterization & Cardiovascular Interventions. 84(3):397-405, 2014 Sep 1.PMID: 24227477Institution: MedStar Heart & Vascular InstituteForm of publication: Journal ArticleSubject headings: *Coronary Artery Disease/su [Surgery] | *Coronary Vessels/us [Ultrasonography] | *Percutaneous Coronary Intervention/mt [Methods] | *Stents | *Ultrasonography, Interventional/mt [Methods] | Aged | Coronary Angiography | Coronary Artery Disease/ra [Radiography] | Coronary Artery Disease/us [Ultrasonography] | Coronary Vessels/su [Surgery] | Female | Follow-Up Studies | Humans | Male | Middle Aged | Prosthesis Design | Prosthesis FailureLocal holdings: Available online from MWHC library: 1996 - present, Available in print through MWHC library: 1996 - 2006ISSN:
  • 1522-1946
Name of journal: Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & InterventionsAbstract: BACKGROUND: Longitudinal stent deformation was recently reported.CONCLUSION: The axial integrity of DES platforms examined in vivo was high, with only mild changes in stent length after implantation. While there are differences between first- and second-generation DES, axial integrity among second-generation DES was similar.Copyright © 2013 Wiley Periodicals, Inc.METHODS: Consecutive patients who underwent IVUS analysis after drug-eluting stent (DES) implantation for de novo coronary lesions were evaluated. Stent length was compared with label length for calculation of absolute change and relative difference (absolute change divided by label length).OBJECTIVE: To evaluate the axial integrity of different coronary stents using intravascular ultrasound (IVUS).RESULTS: A total of 233 DES utilizing five different platforms were included. The median absolute change in stent length was 0.90 mm (interquartile range [IQR] 0.48-1.39) and the relative difference was 5.24% (IQR 2.55-8.29). There was no significant difference among the groups in median absolute or relative change: Cypher 0.89 mm/3.89%, Taxus 0.88 mm/5.39%, Endeavor 1.16 mm/6.77%, Xience V 0.86 mm/5.80%, and PROMUS Element 0.79 mm/5.34% (P=0.085, P=0.072, respectively). Multivariate logistic regression revealed that the Cypher stent was independently correlated with a lower change in length, whereas stent label length and deployment pressure were correlated with higher absolute change.All authors: Badr S, Barbash IM, Chen F, Dvir D, Kitabata H, Loh JP, Minha S, Torguson R, Waksman RDigital Object Identifier: Date added to catalog: 2015-06-03
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Item type Current library Collection Call number Status Date due Barcode
Journal Article MedStar Authors Catalog Article Available 24227477

Available online from MWHC library: 1996 - present, Available in print through MWHC library: 1996 - 2006

BACKGROUND: Longitudinal stent deformation was recently reported.

CONCLUSION: The axial integrity of DES platforms examined in vivo was high, with only mild changes in stent length after implantation. While there are differences between first- and second-generation DES, axial integrity among second-generation DES was similar.Copyright © 2013 Wiley Periodicals, Inc.

METHODS: Consecutive patients who underwent IVUS analysis after drug-eluting stent (DES) implantation for de novo coronary lesions were evaluated. Stent length was compared with label length for calculation of absolute change and relative difference (absolute change divided by label length).

OBJECTIVE: To evaluate the axial integrity of different coronary stents using intravascular ultrasound (IVUS).

RESULTS: A total of 233 DES utilizing five different platforms were included. The median absolute change in stent length was 0.90 mm (interquartile range [IQR] 0.48-1.39) and the relative difference was 5.24% (IQR 2.55-8.29). There was no significant difference among the groups in median absolute or relative change: Cypher 0.89 mm/3.89%, Taxus 0.88 mm/5.39%, Endeavor 1.16 mm/6.77%, Xience V 0.86 mm/5.80%, and PROMUS Element 0.79 mm/5.34% (P=0.085, P=0.072, respectively). Multivariate logistic regression revealed that the Cypher stent was independently correlated with a lower change in length, whereas stent label length and deployment pressure were correlated with higher absolute change.

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