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Predictors of stroke, myocardial infarction or death within 30 days of carotid artery stenting: results from the International Carotid Stenting Study

Doig, D; Turner, EL; Dobson, J; Featherstone, RL; Lo, RTH; Gaines, PA; Macdonald, S; ... Brown, MM; + view all (2016) Predictors of stroke, myocardial infarction or death within 30 days of carotid artery stenting: results from the International Carotid Stenting Study. European Journal of Vascular and Endovascular Surgery , 51 (3) pp. 327-334. 10.1016/j.ejvs.2015.08.013. Green open access

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Abstract

OBJECTIVES: Stroke, myocardial infarction (MI), and death are complications of carotid artery stenting (CAS). The effect of baseline patient demographic factors, processes of care, and technical factors during CAS on the risk of stroke, MI, or death within 30 days of CAS in the International Carotid Stenting Study (ICSS) were investigated. METHODS: In ICSS, suitable patients with recently symptomatic carotid stenosis > 50% were randomly allocated to CAS or endarterectomy. Factors influencing the risk of stroke, MI, or death within 30 days of CAS were examined in a regression model for the 828 patients randomized to CAS in whom the procedure was initiated. RESULTS: Of the patients, 7.4% suffered stroke, MI, or death within 30 days of CAS. Independent predictors of risk were age (risk ratio [RR] 1.17 per 5 years of age, 95% CI 1.01–1.37), a right-sided procedure (RR 0.54, 95% CI 0.32–0.91), aspirin and clopidogrel in combination prior to CAS (compared with any other antiplatelet regimen, RR 0.59, 95% CI 0.36–0.98), smoking status, and the severity of index event. In patients in whom a stent was deployed, use of an open-cell stent conferred higher risk than use of a closed-cell stent (RR 1.92, 95% CI 1.11–3.33). Cerebral protection device (CPD) use did not modify the risk. CONCLUSIONS: Selection of patients for CAS should take into account symptoms, age, and side of the procedure. The results favour the use of closed-cell stents. CPDs in ICSS did not protect against stroke.

Type: Article
Title: Predictors of stroke, myocardial infarction or death within 30 days of carotid artery stenting: results from the International Carotid Stenting Study
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.ejvs.2015.08.013
Publisher version: http://dx.doi.org/10.1016/j.ejvs.2015.08.013
Language: English
Additional information: © 2015 The Authors. Published by Elsevier Ltd on behalf of European Society for Vascular Surgery.This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Keywords: Carotid atherosclerosis; Carotid artery stenosis; Stroke; Myocardial infarction; Stents
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology
URI: https://discovery.ucl.ac.uk/id/eprint/1473501
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