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Catheter Cardiovasc Interv. 2012 Dec 1;80(7):1072-8. doi: 10.1002/ccd.24433. Epub 2012 Jul 23.

A meta-analysis of proximal occlusion device outcomes in carotid artery stenting.

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1
Department of Cardiology, Swedish Medical Center, Seattle, Washington, USA. robert.bersin@swedish.org

Abstract

BACKGROUND:

The clinical risk predictors for adverse events in carotid stenting using distal embolic protection devices are well established and include patient age and symptomatic status. The risk predictors for adverse events with proximal occlusion devices are not as well established. This study is a meta-analysis of available data on proximal occlusion devices to determine the risk predictors of adverse events in carotid stenting.

METHODS:

Study-specific results on 2,397 patients from six independent databases of two different proximal occlusion devices were meta-analyzed by an independent statistical analysis organization for predictors of 30-day major adverse clinical events including stroke, myocardial infarction, and death using random effects models. The primary endpoint was the composite of total stroke, myocardial infarction, and death at 30 days.

RESULTS:

The incidence of stroke was 1.71%. The incidence of myocardial infarction was 0.02%. The incidence of death was 0.40%. The composite primary endpoint at 30 days was 2.25%. Age and diabetic status were found to be the only significant independent risk predictors; however, total stroke rates remained below 2.6% in all subgroups, including symptomatic octogenarians. The other baseline demographic variables including patient gender, symptomatic status, and contralateral carotid occlusion were not found to be independent risk predictors.

CONCLUSIONS:

A meta-analysis of CAS procedures performed with proximal occlusion devices demonstrated a very low incidence of adverse events at 30 days. The only independent risk predictors were age and diabetes. Patient gender, symptomatic status, and other baseline characteristics were not found to be risk predictors for CAS using proximal occlusion devices.

PMID:
22454248
DOI:
10.1002/ccd.24433
[Indexed for MEDLINE]
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