Basilar artery vasospasm and delayed posterior circulation ischemia after aneurysmal subarachnoid hemorrhage
Brain Stem Infarctions
Tomography, Emission-Computed, Single-Photon
Ultrasonography, Doppler, Transcranial
These findings suggest for the first time that BA-VS after aneurysmal SAH is associated with hypoperfusion to BS and other posterior circulation territories. The risk for delayed BS ischemia increased significantly when TCD BA-FVs were >115 cm/s.