Intracranial arteriovenous malformation: Contralateral steal phenomena

H. H. Batjer, M. D. Devous, G. B. Seibert, P. D. Purdy, A. K. Ajmani, M. Delarosa, F. J. Bonte

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Sixty-two patients with radiographically proven intracranial arteriovenous malformations underwent preoperative regional cerebral blood flow measurement with 133Xe single-photon emission computed tomography. Contralateral regions of hypoperfusion were detected in all cases. Steal severity was assessed according to the contralateral steal index [ISteal(c)]. ISteal(c) was <0.7 (severe) in 22 (35%), 0.7-0.8 (intermediate) in 18 (29%), and >0.8 (mild) in 22 (35%). ISteal(c) was more frequently severe or mild in females and more often intermediate in males (p < 0.05). Hyperemic complications were encountered more frequently in patients with intermediate ISteal(c) (p = 0.086). An unfavorable outcome was associated with less severe contralateral steal (p = 0.12). A detailed clinical, radiographic, and hemodynamic profile may help to preoperatively identify patients at high risk for a poor surgical outcome.

Original languageEnglish (US)
Pages (from-to)401-406
Number of pages6
JournalNeurologia Medico-Chirurgica
Volume29
Issue number5
DOIs
StatePublished - 1989

Keywords

  • arteriovenous malformation
  • cerebral blood flow
  • cerebrovascular steal

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

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