title: [Perforating Artery Injury during Microsurgery for Internal Carotid Artery Bifurcation Aneurysms].
abstract: Internal carotid artery bifurcation aneurysms(ICB-ANs)are relatively rare and are difficult to occlude by direct clipping without perforating artery injury(PAI). We retrospectively analyzed 11 aneurysms in 10 cases. PAI was identified in 5 of 10 cases on postoperative computed tomography(CT)or magnetic resonance imaging(MRI), and 2 of these patients were symptomatic. PAIs were distributed in the caudate nucleus and/or the genu of the internal capsule. PAI occurred in 3 of 5 cases in which indocyanine green videoangiography(ICG-VAG)was performed. ICG-VAG is a helpful tool visualizing blood flow of vessels in surgical fields. However, PAI is a potential risk in direct clipping of ICB-ANs even if adjacent perforating arteries were observed using ICG-VAG.
authors.affiliation: Department of Neurosurgery, Saitama Red Cross Hospital.
authors.forename: Takuhiro
authors.initials: T
authors.lastname: Shoji
authors.forename: Kensuke
authors.initials: K
authors.lastname: Murakami
authors.forename: Nobuo
authors.initials: N
authors.lastname: Noshita
authors.forename: Toshie
authors.initials: T
authors.lastname: Takahashi
authors.forename: Uichi
authors.initials: U
authors.lastname: Kaneko
mesh_terms: D000328:Adult; D000368:Aged; D000783:Aneurysm / Q000601:surgery*; D017542:Aneurysm, Ruptured / Q000601:surgery*; D000792:Angiography; D002343:Carotid Artery, Internal / Q000601:surgery*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008866:Microsurgery; D008875:Middle Aged; D012189:Retrospective Studies