title: Vascular reconstruction using interposed small vessels.
abstract: OBJECTIVE
  This study presents the relationship between the patency of short-vessel graft bypasses and their diameter/length.
  
  
  METHODS
  The authors performed interposed graft bypass operations using small vessels for four patients with moyamoya disease, six patients with cerebral thrombosis, and one patient with aortitis syndrome. The donor artery was the superficial temporal artery (10 patients) or the occipital artery (1 patient), and the recipient artery was the cortical branch of the middle cerebral artery (8 patients) or the cortical branch of the anterior cerebral artery (3 patients). The interposed graft used between these donor and recipient vessels was the superficial temporal vein (seven patients), the superficial temporal artery (three patients), or the epigastric artery (one patient).
  
  
  RESULTS
  Good patency of the graft was confirmed for 7 of these 11 patients. Regarding the relationship between the diameter/length and the patency, we found that long-term patency could not be expected when the discriminant function of y = (15.39 x diameter) - (0.35 x length) - 14.37 was below zero.
  
  
  CONCLUSIONS
  Short-vessel graft bypass is a practical option for cerebral revascularization surgery when short large vessels are used.
authors.affiliation: Department of Neurosurgery, Hokkaido University School of Medicine, Sapporo, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Houkin
authors.forename: T
authors.initials: T
authors.lastname: Ishikawa
authors.forename: S
authors.initials: S
authors.lastname: Kuroda
authors.forename: H
authors.initials: H
authors.lastname: Abe
mesh_terms: D000328:Adult; D000368:Aged; D001015:Aortic Arch Syndromes / Q000175:diagnosis / Q000601:surgery*; D001158:Arteries / Q000601:surgery; D001808:Blood Vessels / Q000033:anatomy & histology; D002533:Cerebral Angiography; D002548:Cerebral Revascularization / Q000379:methods* / Q000706:statistics & numerical data; D002648:Child; D002675:Child, Preschool; D016002:Discriminant Analysis; D005260:Female; D006801:Humans; D002542:Intracranial Embolism and Thrombosis / Q000175:diagnosis / Q000601:surgery*; D018810:Magnetic Resonance Angiography; D008297:Male; D008875:Middle Aged; D009072:Moyamoya Disease / Q000175:diagnosis / Q000601:surgery*; D013382:Subtraction Technique; D014654:Vascular Patency / Q000502:physiology; D014680:Veins / Q000601:surgery