Risk Factors and Complications Associated with Difficult Retrieval of Embolic Protection Devices in Carotid Artery Stenting
- نوع فایل : کتاب
- زبان : انگلیسی
- مؤلف : Xuegan Lian Wenhua Liu Min Li Min Lin Shuanggen Zhu Wen Sun Qin Yin Gelin Xu Renliang Zhang Xinfeng Liu
- چاپ و سال / کشور: 2010
Description
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.
Cardiovasc Intervent Radiol Received: 29 August 2010 / Accepted: 10 December 2010
