title: Treatment outcomes of carotid artery stenting with two types of distal protection filter device.
abstract: OBJECTIVE
  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.
  
  
  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.
  
  
  CONCLUSIONS
  FilterWire EZ and Spider FX are comparable in terms of treatment outcome.
authors: Department of Neurosurgery, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502 Japan.
authors: Minoru
authors: M
authors: Iko
authors: Department of Neurosurgery, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502 Japan.
authors: Hiroshi
authors: H
authors: Aikawa
authors: Department of Neurosurgery, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502 Japan.
authors: Yoshinori
authors: Y
authors: Go
authors: Department of Neurosurgery, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502 Japan.
authors: Kanji
authors: K
authors: Nakai
authors: Department of Neurosurgery, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502 Japan.
authors: Masanori
authors: M
authors: Tsutsumi
authors: Department of Neurosurgery, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502 Japan.
authors: Iwae
authors: I
authors: Yu
authors: Department of Neurosurgery, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502 Japan.
authors: Taichiro
authors: T
authors: Mizokami
authors: Department of Neurosurgery, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502 Japan.
authors: Kimiya
authors: K
authors: Sakamoto
authors: Department of Neurosurgery, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502 Japan.
authors: Ritsuro
authors: R
authors: Inoue
authors: Department of Neurosurgery, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502 Japan.
authors: Takafumi
authors: T
authors: Mitsutake
authors: Department of Neurosurgery, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502 Japan.
authors: Ayumu
authors: A
authors: Eto
authors: Department of Neurosurgery, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502 Japan.
authors: Hayatsura
authors: H
authors: Hanada
authors: Department of Neurosurgery, Fukuoka University Chikushi Hospital, 1-1-1 Zokumyoin, Chikushino, Fukuoka, 818-8502 Japan.
authors: Kiyoshi
authors: K
authors: Kazekawa
keywords: Carotid artery stenting; Cerebral infarction; Diffusion-weighted magnetic resonance imaging; Distal protection filter device