Document Detail


Contralateral high-grade carotid artery stenosis or occlusion is not associated with increased risk for poor neurologic outcome after elective carotid stent placement.
MedLine Citation:
PMID:  14695388     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To compare neurologic outcome after elective internal carotid artery (ICA) stents have been placed in patients with and in patients without contralateral ICA obstructions. MATERIALS AND METHODS: This study included 471 consecutive patients from a registry database who underwent elective ICA stent placement without cerebral protection for high-grade (greater than 70% stenosis of the ICA, according to the North American Symptomatic Carotid Endarterectomy Trial) symptomatic (n = 147) or asymptomatic (n = 324) ICA stenosis. Contralateral carotid arteries were investigated with angiography. Patients with and patients without contralateral high-grade stenosis (70%-99% stenosis, according to the North American Symptomatic Carotid Endarterectomy Trial) or occlusion were compared with respect to 30-day neurologic outcome by using the chi2 test and multivariate logistic regression analysis. RESULTS: Neurologic events were observed in 33 patients (7%) with 15 transient ischemic attacks, eight minor strokes, and 10 major strokes that led to death in two patients (combined stroke and death rate, 4%). Eighty-eight patients (19%) with contralateral high-grade ICA stenosis and 43 patients (9%) with contralateral ICA occlusion exhibited a similar rate of postintervention combined neurologic events (n = 9, 7%) compared with patients without contralateral high-grade ICA stenosis or occlusion (n = 24, 7%) (P =.94). No differences were observed between symptomatic and asymptomatic patients. Combined stroke and death rates were also comparable between symptomatic (four of 131, 3%) and asymptomatic (14 of 340, 4%) patients (P =.59). Of all variables tested, multivariate analysis did not detect any predictor for peri- or postinterventional neurologic events. CONCLUSION: Contralateral high-grade ICA stenosis or occlusion was not associated with an increased risk for neurologic events after elective ICA stent placement.
Authors:
Schila Sabeti; Martin Schillinger; Wolfgang Mlekusch; Tassilo Nachtmann; Wilfried Lang; Ramazanali Ahmadi; Erich Minar
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Radiology     Volume:  230     ISSN:  0033-8419     ISO Abbreviation:  Radiology     Publication Date:  2004 Jan 
Date Detail:
Created Date:  2003-12-25     Completed Date:  2004-02-02     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0401260     Medline TA:  Radiology     Country:  United States    
Other Details:
Languages:  eng     Pagination:  70-6     Citation Subset:  AIM; IM    
Copyright Information:
Copyright RSNA, 2004
Affiliation:
Departments of Angiology and Clinical Neurology, University of Vienna Medical School, Austria. schilla.sabeti@akh-wien.ac.at
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MeSH Terms
Descriptor/Qualifier:
Aged
Carotid Artery, Internal*
Carotid Stenosis / complications*,  surgery*
Cohort Studies
Female
Humans
Male
Middle Aged
Risk Factors
Stents*
Treatment Outcome

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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