title: Endovascular Treatment of Middle Cerebral Artery Aneurysm with the LVIS Junior Stent.
abstract: BACKGROUND
  Middle cerebral artery (MCA) aneurysms often occur in small parent vessels and are incorporated with the orifice of acute-angled efferent branch vessels. Endovascular treatment for these aneurysms remains technically challenging. This study aimed to assess the clinical safety and efficacy of the Low-profile Visualized Intraluminal Support Junior (LVIS Jr) stent for embolization of MCA aneurysms.
  
  
  METHODS
  Eighteen intracranial aneurysms, including 13 unruptured and 5 ruptured aneurysms, were treated with LVIS Jr stent-assisted coil embolization. The clinical data and technical results are presented.
  
  
  RESULTS
  A total of 18 stents were successfully delivered to the target aneurysms, and the technical success rate was 100%. There was complete occlusion in 8 (44.4%) of 18 cases, neck remnants in 7 (38.9%) cases, and partial occlusion in 3 (16.7%) cases. In-stent thrombosis occurred in 1 case, and the symptoms disappeared after transvenous tirofiban injection. The modified Rankin Scale score at discharge was 0 in 14 patients, 1 in 3 patients, and 2 in 1 patient.
  
  
  CONCLUSIONS
  The LVIS Jr stent provided excellent trackability and deliverability and is safe and effective for the treatment of wide-necked MCA aneurysms with tortuous and smaller parent vessels.
authors: Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, China.
authors: Zhengzhe
authors: Z
authors: Feng
authors: Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, China.
authors: Qiang
authors: Q
authors: Li
authors: Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, China.
authors: Rui
authors: R
authors: Zhao
authors: Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, China.
authors: Ping
authors: P
authors: Zhang
authors: Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, China.
authors: Lei
authors: L
authors: Chen
authors: Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, China.
authors: Yi
authors: Y
authors: Xu
authors: Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, China.
authors: Bo
authors: B
authors: Hong
authors: Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, China.
authors: Wenyuan
authors: W
authors: Zhao
authors: Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, China.
authors: Jianmin
authors: J
authors: Liu
authors: Department of Neurosurgery, Changhai Hospital, Second Military Medical University, Shanghai, China. Electronic address: shchfzz141012@163.com.
authors: Qinghai
authors: Q
authors: Huang
mesh_terms: D000328:Adult; D000368:Aged; D017542:Aneurysm, Ruptured / Q000601:surgery*; D004621:Embolization, Therapeutic / Q000379:methods; D057510:Endovascular Procedures / Q000379:methods*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D015607:Stents; D016896:Treatment Outcome
keywords: Middle cerebral artery; aneurysm; coiling; stent