Perforator infarction just after placement of a LVIS stent for basilar artery dissecting aneurysm

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  • Hanayama Hiroaki
    Department of Neurosurgery, Yoshida Hospital, Cerebrovascular Research Institute
  • Minami Hiroaki
    Department of Neurosurgery, Yoshida Hospital, Cerebrovascular Research Institute
  • Matsumoto Atsushi
    Department of Neurosurgery, Yoshida Hospital, Cerebrovascular Research Institute
  • Ogita Seiji
    Department of Neurosurgery, Yoshida Hospital, Cerebrovascular Research Institute
  • Tsuda Kai
    Department of Neurosurgery, Yoshida Hospital, Cerebrovascular Research Institute
  • Tomogane Yusuke
    Department of Neurosurgery, Yoshida Hospital, Cerebrovascular Research Institute
  • Masuda Atsushi
    Department of Neurosurgery, Yoshida Hospital, Cerebrovascular Research Institute
  • Tominaga Shogo
    Department of Neurosurgery, Yoshida Hospital, Cerebrovascular Research Institute
  • Yamaura Ikuya
    Department of Neurosurgery, Yoshida Hospital, Cerebrovascular Research Institute
  • Yoshida Yasuhisa
    Department of Neurosurgery, Yoshida Hospital, Cerebrovascular Research Institute
  • Hirata Yutaka
    Department of Neurology, Yoshida Hospital, Cerebrovascular Research Institute
  • Takiyoshi Yuko
    Department of Rehabilitation, Yoshida Hospital, Cerebrovascular Research Institute

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Other Title
  • LVISステント留置により穿通枝梗塞を来した解離性脳底動脈本幹部動脈瘤の1例

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Abstract

<p>A 74-year-old man visited to our hospital due to the complaint of dizziness. Head MRI and Angiography revealed aneurysm on the upper basilar trunk incidentally. We performed stent assisted coil embolization using LVIS stent for this aneurysm in order to prevent aneurysmal rupture. After three hours of operation, the patient presented with left hemiparesis and dysarthria. MRI showed pontine infarction on the right side. Retrospectively, angiographical findings during procedure demonstrated disappearance of the perforating artery in the territory of pons, just after LVIS stent was deployed. It was assumed that the cerebral infarction was caused by stent deployment. Deployment of the stent is one of the useful treatments of dissecting aneurysms. On the other hand this procedure may induce occlusion of perforating arteries by pressing false lumen of dissecting artery. It is necessary to keep in mind that the deployment of stent causes perforator infarction.</p>

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