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CardioVascular and Interventional Radiology

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01-02-2012 | Clinical Investigation

Risk Factors and Complications Associated with Difficult Retrieval of Embolic Protection Devices in Carotid Artery Stenting

Authors: Xuegan Lian, Wenhua Liu, Min Li, Min Lin, Shuanggen Zhu, Wen Sun, Qin Yin, Gelin Xu, Renliang Zhang, Xinfeng Liu

Published in: CardioVascular and Interventional Radiology | Issue 1/2012

Abstract

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.

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Title: Risk Factors and Complications Associated with Difficult Retrieval of Embolic Protection Devices in Carotid Artery Stenting
Authors: Xuegan Lian
Wenhua Liu
Min Li
Min Lin
Shuanggen Zhu
Wen Sun
Qin Yin
Gelin Xu
Renliang Zhang
Xinfeng Liu
Publication date: 01-02-2012
Publisher: Springer-Verlag
Published in: CardioVascular and Interventional Radiology / Issue 1/2012
Print ISSN: 0174-1551
Electronic ISSN: 1432-086X
DOI: https://doi.org/10.1007/s00270-011-0117-y

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Risk Factors and Complications Associated with Difficult Retrieval of Embolic Protection Devices in Carotid Artery Stenting

Abstract

Purpose

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Purpose

Methods

Results

Conclusions

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