A New Operation to Treat Moyamoya Disease
  • Yoshiharu Matsushima
Conference paper


Moyamoya disease is an unusual form of chronic cerebrovascular disease in which the bilateral distal internal carotid arteries (IC) and circle of Willis become progressively narrower [3, 6]. To compensate for a decrease in blood supply to the brain due to this arterial narrowing, the collateral systems for the brain are activated and the blood flow per these collaterals progressively increases in inverse proportion to the progress of IC narrowing, by gradually replacing the collaterals of the internal carotid system with the collaterals of the external carotid system which has more capacity in blood flow. [4, 6].


External Carotid Moyamoya Disease Collateral System Arterial Narrowing Moyamoya Vessel 
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Copyright information

© Springer Japan 1988

Authors and Affiliations

  • Yoshiharu Matsushima
    • 1
  1. 1.Department of NeurosurgeryTokyo Medical and Dental UniversityTokyoJapan

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