title: [Biodiv Ysio stent for symptomatic stenosis of middle cerebral artery].
abstract: OBJECTIVE
  To assess the safety and feasibility of Biodiv Ysio stent for patients with symptomatic M1 stenosis of middle cerebral artery (MCA).
  
  
  METHODS
  Forty-three patients with forty-five M1 stenoses, ranged from 50% to 99% in diameter reduction and refractory to medical therapy, were enrolled in this study between March 2002 and November 2003. The lesions were situated at M1 trunk (n = 19), M1 origin (n = 12) and M1 bifurcation (n = 14), respectively.
  
  
  RESULTS
  The technical successful rate was 97.8% (44/45) for all the lesions. The rate of complicating subarachnoid hemorrhage was 7.0% (3/43 patients) and the rate of death was 2.3%. During a follow-up of 7.0 months (median), there was no recurrence of transient ischemic attack or stroke in 41 available patients. Six-month angiographic follow-up was obtained in 6 patients (7 vessels), demonstrating good patency in 6 stenting vessels and restenosis in one vessel.
  
  
  CONCLUSIONS
  Angioplasty associated with Biodiv Ysio stent appears to be a safe and feasible for the patients with symptomatic M1 stenosis of MCA, under strict control of periperformeral project. Further study is, however needed.
authors.affiliation: Neurovascular Angioplasty Team, Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital University of Medical Sciences, Beijing 100050, China. jwj@2911.net
authors.forename: Wei-jian
authors.initials: WJ
authors.lastname: Jiang
authors.forename: Bin
authors.initials: B
authors.lastname: Du
authors.forename: Yong-jun
authors.initials: YJ
authors.lastname: Wang
authors.forename: Min
authors.initials: M
authors.lastname: Jin
authors.forename: Su-xiang
authors.initials: SX
authors.lastname: Wang
authors.forename: Jian-ping
authors.initials: JP
authors.lastname: Dai
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001921:Brain; D002539:Cerebral Arterial Diseases / Q000473:pathology / Q000601:surgery; D003251:Constriction, Pathologic / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D018810:Magnetic Resonance Angiography; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D020768:Middle Cerebral Artery / Q000473:pathology / Q000601:surgery*; D015607:Stents; D016896:Treatment Outcome; D017585:Ultrasonography, Doppler, Transcranial; D014656:Vascular Surgical Procedures / Q000379:methods*