Extracranial-Intracranial Bypass Surgery

  • James I. Ausman
  • Fernando G. Diaz
  • Balaji Sadasivan
Conference paper


Ischemic cerebrovascular disease may be due to embolism, hemodynamic compromise, or small vessel occlusive disease. The extracranial-intracranial (EC-IC) bypass surgery was introduced as a treatment for the hemodynamic causes of cerebral ischemia in 1967. It was based on the logical assumption that the brain is like other organs in the body and that symptoms caused by hypoperfusion to a region can be prevented by increasing the blood flow to that region. In the EC-IC bypass operation, blood flow is improved distal to the occluded or stenotic artery, thereby increasing the perfusion of the ischemic areas.


Cerebral Blood Flow Cerebral Ischemia Transient Cerebral Ischemia Ischemic Cerebrovascular Disease Stenotic Artery 
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Copyright information

© Springer Japan 1988

Authors and Affiliations

  • James I. Ausman
    • 1
  • Fernando G. Diaz
    • 1
  • Balaji Sadasivan
    • 1
  1. 1.Department of NeurosurgeryHenry Ford HospitalDetroitUSA

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