Solitary Incidental Vertebrobasilar Aneurysms: 70 Patients

  • Charles G. Drake
  • Sydney J. Peerless
  • Juha A. Hernesniemi


With the ever-increasing number of intact aneurysms revealed by modern imaging, the options for managing these lesions are assuming great importance. As a significant lifetime risk of potentially catastrophic rupture exists with a yearly rupture rate of 1–3%, we have recommended surgery in a considerable number of cases, especially in those whose aneurysms have been 6–7 mm or more in diameter. In a recent analysis of all non-giant unruptured posterior circulation aneurysms, we recommended surgery for these lesions as the actual surgical morbidity was as low as 2.4%. In the total series of 1767 vertebral-basilar artery aneurysms (VBAA) there were 70 neurologically completely intact patients with single aneurysms which were unruptured and without mass effect, had no arteriovenous malformation (AVM) or other intracranial aneurysm. As these patients were asymptomatic and in good condition, any possible complications were related only to the surgery of this single lesion.


Intracranial Aneurysm Hemifacial Spasm Superior Cerebellar Artery Posterior Circulation Aneurysm Basilar Trunk 
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Copyright information

© Springer-Verlag/Wien 1996

Authors and Affiliations

  • Charles G. Drake
    • 1
    • 2
  • Sydney J. Peerless
    • 2
  • Juha A. Hernesniemi
    • 3
  1. 1.Department of SurgeryUniversity of Western Ontario, University HospitalLondonCanada
  2. 2.Division of NeurosurgeryUniversity of Western Ontario, University HospitalLondonCanada
  3. 3.Department of NeurosurgeryUniversity Hospital of KuopioKuopioFinland

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