title: [Risk factors in carotid angioplasty and stenting for extracranial carotid stenosis of elderly patients].
abstract: OBJECTIVE
  To evaluate the risk factors and safety of carotid angioplasty and stenting(CAS) for extracranial carotid stenosis in elderly patients and summarize CAS on the indication of elderly patients and the prevention of complications.
  
  
  METHODS
  The population characteristics, clinical features and vascular data of 60 elderly patients (≥ 75 years) treated between June 2001 and December 2010 were retrospectively analyzed. There were 57 male and 3 female. The median age of the patients was 78.8 years (range, 75 - 93 years ). The mean case history was 2.5 months with a range of 1 to 6 months. To summarize the prognosis of CAS according to the reduction of stenosis, NIHSS score, the incidence of early postoperative, 30 days adverse events and the follow-up status. Using χ(2) test as the statistical method.
  
  
  RESULTS
  The mean stenosis was reduced from 81% ± 17% preoperative to 18% ± 9% postoperative. NIHSS score was reduced from preoperative 22 ± 8 to postoperative 10 ± 4. The average follow-up period was 1.5 years (range from 3 months to 3 years), and the results showed no procedure-related death occurred. Ipsilateral stroke occurred in 1 case (1.7%) and restenosis (≥ 50%) occurred in 2 patients (3.3%). Diabetes (χ(2) = 23.96, P < 0.01)and cardiac insufficiency (χ(2) = 6.446, P < 0.05)had a respectively significant impact on the incidence of early postoperative complications.
  
  
  CONCLUSIONS
  CAS can be effective in restoring carotid artery stenosis of elderly patients and preventing the occurrence of stroke. The elderly, diabetes, cardiac insufficiency are more likely to increase the postoperative risk of adverse events.
authors.affiliation: Department of Neurosurgery, Chinese People's Liberation Army General Hospital, Beijing 100853, China.
authors.forename: Jun
authors.initials: J
authors.lastname: Xu
authors.forename: Jun
authors.initials: J
authors.lastname: Wang
authors.forename: Bao-min
authors.initials: BM
authors.lastname: Li
authors.forename: Sheng
authors.initials: S
authors.lastname: Li
authors.forename: Xiang-yu
authors.initials: XY
authors.lastname: Cao
authors.forename: Xin-feng
authors.initials: XF
authors.lastname: Liu
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D017130:Angioplasty / Q000379:methods*; D016893:Carotid Stenosis / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D012189:Retrospective Studies; D012307:Risk Factors; D015607:Stents