Timing and Risk Factors in Surgery of Ruptured Cerebral Aneurysms

  • Isamu Saito
  • Hiromu Segawa
  • Koichi Aritake


The decision whether to operate or not in cases with ruptured cerebral aneurysms in the acute stage is still a controversial problem [1, 2, 5, 6]. Since the beginning of 1970, microsurgery has been utilized in our operations on cerebral aneurysms and we have actively performed early operations after rupture. In this paper, we will analyze 248 consecutive cases of ruptured cerebral aneurysms admitted within one week after subarachnoid hemmorhage (SAH) and detail the risk factors producing unfavorable surgical results.


Middle Cerebral Artery Blood Clot Cerebral Aneurysm Cerebral Vasospasm Sylvian Fissure 
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Copyright information

© Springer Japan 1988

Authors and Affiliations

  • Isamu Saito
    • 1
  • Hiromu Segawa
    • 1
  • Koichi Aritake
    • 1
  1. 1.Department of NeurosurgeryUniversity of TokyoTokyoJapan

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