title: Spinal cord infarction is an unusual complication of intracranial neuroendovascular intervention.
abstract: Spinal cord infarction is an unusual complication of intracranial neuroendovascular intervention. The authors report on two cases involving spinal cord infarction after endovascular coil embolization for large basilar-tip aneurysms. Each aneurysm was sufficiently embolized by the stent/balloon combination-assisted technique or double catheter technique. However, postoperatively, patients presented neurological symptoms without cranial nerve manifestation. MRI revealed multiple infarctions at the cervical spinal cord. In both cases, larger-sized guiding catheters were used for an adjunctive technique. Therefore, guiding catheters had been wedged in the vertebral artery (VA). The wedge of the VA and flow restriction may have caused thromboemboli and/or hemodynamic insufficiency of the spinal branches from the VA (radiculomedullary artery), resulting in spinal cord infarction. Spinal cord infarction should be taken into consideration as a complication of endovascular intervention for lesions of the posterior circulation.
authors.affiliation: Department of Neurosurgery, Nagoya University Graduate School of Medicine; Nagoya, Aichi, Japan - smiyachi@med.nagoya-u.ac.jp.
authors.forename: Noriaki
authors.initials: N
authors.lastname: Matsubara
authors.forename: Shigeru
authors.initials: S
authors.lastname: Miyachi
authors.forename: Takeshi
authors.initials: T
authors.lastname: Okamaoto
authors.forename: Takashi
authors.initials: T
authors.lastname: Izumi
authors.forename: Takumi
authors.initials: T
authors.lastname: Asai
authors.forename: Takashi
authors.initials: T
authors.lastname: Yamanouchi
authors.forename: Keisuke
authors.initials: K
authors.lastname: Ota
authors.forename: Keiko
authors.initials: K
authors.lastname: Oda
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Wakabayashi
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D057510:Endovascular Procedures / Q000009:adverse effects*; D006801:Humans; D007238:Infarction / Q000000981:diagnostic imaging* / Q000209:etiology* / Q000601:surgery; D008297:Male; D019635:Neurosurgical Procedures / Q000009:adverse effects*; D011859:Radiography; D013116:Spinal Cord / Q000098:blood supply* / Q000000981:diagnostic imaging*; D016896:Treatment Outcome
keywords: complication; intracranial aneurysm; neuroendovascular intervention; spinal cord infarction