High-flow bypass using nonocclusive excimer laser-assisted end-to-side anastomosis of the external carotid artery to the P1 segment of the posterior cerebral artery via the sylvian route. Technical note

J Neurosurg. 1998 May;88(5):925-7. doi: 10.3171/jns.1998.88.5.0925.


In a patient with a giant aneurysm of the basilar artery trunk, a vein graft was interposed between the external carotid artery in the neck and the P1 segment of the posterior cerebral artery. Balloon occlusion of both vertebral arteries was performed 3 days later. The sylvian route was used for the grafting procedure and the connection to the posterior cerebral artery was made by using the excimer laser-assisted nonocclusive anastomosis technique.

Publication types

  • Case Reports

MeSH terms

  • Adult
  • Anastomosis, Surgical / methods*
  • Aneurysm / surgery
  • Basilar Artery / surgery
  • Carotid Artery, External / surgery*
  • Catheterization
  • Cerebral Arteries / surgery*
  • Female
  • Humans
  • Laser Therapy / instrumentation
  • Laser Therapy / methods*
  • Regional Blood Flow / physiology
  • Saphenous Vein / transplantation*
  • Subarachnoid Hemorrhage / surgery
  • Thrombosis / surgery
  • Vertebral Artery / pathology