Capability of cerebral autoregulation assessment in arteriovenous malformations perinidal zone

Background: Cerebral autoregulation (CA) in the region of an intracranial artery involved in blood supply of arteriovenous malformations (AVM) is impaired. This could be due to pathologic shunting, disguising real state of CA, or brain lesion in perinidal area. It is quite difficult to define the influence of both factors on CA. The purpose of this study was to assess dynamics of CA in patients with AVM in perioperative period.