title: Occipital-posterior cerebral artery bypass via the occipital interhemispheric approach.
abstract: BACKGROUND
  The unavailability of the superficial temporal artery (STA) and the location of lesions pose a more technically demanding challenge when compared with conventional STA-superior cerebellar or posterior cerebral artery (PCA) bypass in vascular reconstruction procedures. To describe a case series of patients with cerebrovascular lesions who were treated using an occipital artery (OA) to PCA bypass via the occipital interhemispheric approach.
  
  
  METHODS
  We retrospectively reviewed three consecutive cases of patients with cerebrovascular lesions who were treated using OA-PCA bypass.
  
  
  RESULTS
  OA-PCA bypass was performed via the occipital interhemispheric approach. This procedure included: (1) OA-PCA bypass (n = 1), and combined OA-posterior inferior cerebellar artery and OA-PCA saphenous vein interposition graft bypass (n = 1) in patients with vertebrobasilar ischemia; (2) OA-PCA radial artery interposition graft bypass in one patient with residual PCA aneurysm.
  
  
  CONCLUSIONS
  OA-PCA bypass represents a useful alternative to conventional STA-SCA or PCA bypass.
authors: Department of Neurosurgery, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
authors: Ken
authors: K
authors: Kazumata
authors: Yuka
authors: Y
authors: Yokoyama
authors: Taku
authors: T
authors: Sugiyama
authors: Katsuyuki
authors: K
authors: Asaoka
keywords: Extracranial - intracranial bypass; occipital artery - posterior cerebral artery bypass; occipital interhemispheric approach; superficial temporal artery - posterior cerebral artery bypass; superficial temporal artery - superior cerebellar artery bypass
references: J Neurosurg. 1990 Apr;72(4):554-8
references: 2319313
references: Surg Neurol. 1976 Apr;5(4):225-7
references: 1265632
references: Zentralbl Neurochir. 2000;61(3):158-61
references: 11189888
references: Neurosurg Focus. 2008;24(2):E7
references: 18275303
references: J Neurosurg. 1999 Apr;90(4):786-90
references: 10193628
references: J Thorac Cardiovasc Surg. 2010 Jan;139(1):60-5; discussion 65-7
references: 20106358
references: J Neurosurg. 1978 Jun;48(6):916-28
references: 660243
references: Neurosurgery. 2000 Jul;47(1):153-60; discussion 160-1
references: 10917358
references: JAMA. 2011 Nov 9;306(18):1983-92
references: 22068990
references: J Neurosurg. 2001 Feb;94(2):339-45
references: 11213977
references: Neurosurgery. 1982 Jan;10(1):44-9
references: 7057977
references: Neurosurgery. 2010 Jul;67(1):16-25; discussion 25-6
references: 20559088
references: Neurosurgery. 1998 Jul;43(1):166-70
references: 9657206
references: Neurosurgery. 1988 May;22(5):919-22
references: 3380284
references: Stroke. 2011 Dec;42(12):3637-9
references: 21960571
references: J Neurosurg. 2013 Jan;118(1):25-33
references: 23101451
references: Surg Neurol. 1995 Sep;44(3):245-9; discussion 249-50
references: 8545776
references: Neurosurg Rev. 1982;5(3):77-81
references: 7155360