title: Simultaneous bilateral carotid stenting in high-risk patients.
abstract: OBJECTIVE
  The safety and efficacy of SBCAS have not been evaluated in detail. The purpose of our study was to evaluate the outcome after SBCAS in high-risk patients compared with unilateral stent placement.
  
  
  METHODS
  Between March 2002 and October 2008, a total of 205 consecutive high-risk patients underwent CAS at our institution. Of these patients, 30 (14.6%) underwent SBCAS (n = 24) and staged SBCAS (n = 6). Patients who underwent unilateral CAS (n = 175) during the same period served as controls. The stroke risk factors, procedural results, and outcome at 30 days and 6 months, as well as the restenosis rate at 6 months, were compared by using either the chi(2) test or the Kruskal-Wallis equality-of-populations rank test.
  
  
  RESULTS
  Our data revealed no significant differences in the stroke risk factors between the SBCAS and the control group. HPS occurred more commonly in SBCAS (ie, 16.7%, 4/24) compared with 2.9% (5/175) in the control group (P = .014). However, there was no statistical significance between 2 groups in the event rate of stroke (minor and/or major stroke), death, or restenosis at 6 months.
  
  
  CONCLUSIONS
  There was no significant difference in outcome at 6 months following stent placement between SBCAS and unilateral CAS in the high-risk patient group, even though HPS occurred more commonly after SBCAS.
authors.affiliation: Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Asan Medical Center, Songpa-Gu, Seoul, Korea.
authors.forename: S
authors.initials: S
authors.lastname: Liu
authors.forename: J H
authors.initials: JH
authors.lastname: Jung
authors.forename: S-M
authors.initials: SM
authors.lastname: Kim
authors.forename: H-K
authors.initials: HK
authors.lastname: Lim
authors.forename: H-j
authors.initials: HJ
authors.lastname: Kwon
authors.forename: J K
authors.initials: JK
authors.lastname: Kim
authors.forename: J S
authors.initials: JS
authors.lastname: Kim
authors.forename: D C
authors.initials: DC
authors.lastname: Suh
mesh_terms: D000368:Aged; D000800:Angioplasty, Balloon / Q000401:mortality*; D002339:Carotid Arteries / Q000473:pathology; D016893:Carotid Stenosis / Q000401:mortality* / Q000473:pathology / Q000628:therapy*; D038524:Diffusion Magnetic Resonance Imaging; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D011183:Postoperative Complications / Q000401:mortality; D011446:Prospective Studies; D012008:Recurrence; D012307:Risk Factors; D015607:Stents; D020521:Stroke / Q000401:mortality*; D016896:Treatment Outcome