title: Alpha horizontal stent delivery for coil embolization of a broad-necked large basilar apex aneurysm: a case report.
abstract: Here we describe a novel technique for single stent horizontal reconstruction and coil embolization for a broad-necked large basilar artery (BA) apex aneurysm. A previously healthy 77-year-old woman presented with a broad-necked large BA apex aneurysm. Due to difficulty accessing the right posterior cerebral artery (PCA), we abandoned the Y-stent technique. Instead, we decided to navigate the stent through the BA to the left PCA making a loop of the stent delivery catheter inside the aneurysm in an "alpha" fashion. The procedure outcome was excellent without any complications. Alpha horizontal stent delivery via an antegrade approach for coil embolization of broad-necked large BA apex aneurysms may provide an effective therapeutic alternative, if other techniques are not feasible.
authors.affiliation: Department of Neurosurgery, Kariya Toyota General Hospital, Kariya, Japan.
authors.forename: Tomotaka
authors.initials: T
authors.lastname: Ohshima
authors.affiliation: Department of Neurosurgery, Kariya Toyota General Hospital, Kariya, Japan.
authors.forename: Masamune
authors.initials: M
authors.lastname: Nagakura
authors.affiliation: Department of Neurosurgery, Kariya Toyota General Hospital, Kariya, Japan.
authors.forename: Toshihisa
authors.initials: T
authors.lastname: Nishizawa
authors.affiliation: Department of Neurosurgery, Kariya Toyota General Hospital, Kariya, Japan.
authors.forename: Kyozo
authors.initials: K
authors.lastname: Kato
keywords: basilar apex aneurysm; coiling; stent placement