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Risk Factors and Complications Associated with Difficult Retrieval of Embolic Protection Devices in Carotid Artery Stenting.
MedLine Citation:
PMID:  21387123     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
PURPOSE: This study was designed to investigate the risk factors and complications of difficult retrieval (DR) of embolic protection devices (EPDs) in carotid artery stenting (CAS). METHODS: A total of 195 consecutive patients who underwent CAS between December 2007 and March 2010 in a general hospital were enrolled and divided into two groups: with DR and without DR. The risk factors of DR were analyzed with univariate and multivariate analyses. The complications of DR were recorded and analyzed. RESULTS: A total of 30 (15.4%) patients with DR of EPDs were observed, of whom EPDs were successfully retrieved in 29, and in 1 was it taken out by surgical treatment. The retrieval time was significantly longer in patients with DR (490.5 ± 143.9 s) than in patients without DR (157.2 ± 15.7 s, p = 0.000). Vasospasm was observed more frequently in patients with DR than in patients without DR (55.2% vs. 14.5%, p = 0.000). Intracranial compilations were more frequent in patients with DR than in those without DR (17.2% vs. 0.6%, p = 0.000). Calcified plaques, degree of residual stenosis, types of the stents, and tortuosity index (TI > 80°) were all associated with DR. A logistic regression analysis indicated that calcified plaques (odds ratio (OR) = 6.5; p = 0.000) and TI > 80° (OR = 18.8; p = 0.000) were independent predictors of DR. CONCLUSIONS: Calcified plaques and TI > 80° may be related to DR in patients with CAS. DR may lengthen the retrieving time and increase the complications of the procedure.
Authors:
Xuegan Lian; Wenhua Liu; Min Li; Min Lin; Shuanggen Zhu; Wen Sun; Qin Yin; Gelin Xu; Renliang Zhang; Xinfeng Liu
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-9
Journal Detail:
Title:  Cardiovascular and interventional radiology     Volume:  -     ISSN:  1432-086X     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-3-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8003538     Medline TA:  Cardiovasc Intervent Radiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Neurology, Jinling Hospital, Second Military Medical University, 305# East Zhongshan Road, Nanjing, 210002, China.
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