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. 2014 Mar 8:3:132.
doi: 10.1186/2193-1801-3-132. eCollection 2014.

Treatment outcomes of carotid artery stenting with two types of distal protection filter device

Minoru Iko  1 , Hiroshi Aikawa  1 , Yoshinori Go  1 , Kanji Nakai  1 , Masanori Tsutsumi  1 , Iwae Yu  1 , Taichiro Mizokami  1 , Kimiya Sakamoto  1 , Ritsuro Inoue  1 , Takafumi Mitsutake  1 , Ayumu Eto  1 , Hayatsura Hanada  1 , Kiyoshi Kazekawa  1
Affiliations

Treatment outcomes of carotid artery stenting with two types of distal protection filter device

Minoru Iko et al. Springerplus. .

Abstract

Purpose: Preventing cerebral embolism from debris produced during carotid artery stenting (CAS) is important. This study compared the treatment outcomes of CAS using two types of filter-based embolic protection devices currently in use in Japan.

Materials and methods: We assessed 121 consecutive cases of CAS performed with FilterWire EZ™ between July 2010 and November 2012 and 37 consecutive cases of CAS performed with the Spider FX™ between November 2012 and June 2013. A Carotid Wallstent™ was used in all cases. The incidence of positive lesions on diffusion-weighted magnetic resonance imaging (DWI) and stroke were compared between the groups.

Results: Postoperative DWI-positive lesions were observed in 38 (31.4%) and 14 (37.8%) patients in the FilterWire and Spider groups, respectively. In the FilterWire group, complications were transient ischemic attacks in 3 (2.5%) patients, cerebral infarction in 2 (1.7%) patients (1 patient each with minor and major stroke), and cerebral hemorrhage due to hyperperfusion syndrome in 1 (0.8%) patient. In the Spider group, except for cerebral infarction (minor stroke) in 1 (2.7%) patient, no complications were observed. No significant differences were observed in the incidence of complications between the groups.

Conclusion: FilterWire EZ and Spider FX are comparable in terms of treatment outcome.

Keywords: Carotid artery stenting; Cerebral infarction; Diffusion-weighted magnetic resonance imaging; Distal protection filter device.

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