Hyperperfusion syndrome after stent placement for subclavian artery stenosis: case report.

A 60-year-old woman presented with a rare case of hyperperfusion syndrome after stent placement for subclavian artery stenosis manifesting as dizziness due to vertebrobasilar insufficiency. Three days after undergoing stent placement to treat the severely stenotic (90%) right subclavian artery, she suffered intracranial hemorrhage related to hyperperfusion syndrome. Preoperative single-photon emission computed tomography findings of low cerebral perfusion and poor perfusion reserve might indicate the possibility of hyperperfusion syndrome after stenting in patients with subclavian artery stenosis.

Cognitive function of patients with brain tumor in pre- and postoperative stage.

Background: Nobody knows whether cognitive dysfunction affects survival. Furthermore, it is unknown whether the dysfunction is caused by the tumor itself or by its treatment.

Methods: Patients with 20 gliomas (LGG, 7; MG, 13 [AG, 4; GM, 9]) in the right brain (nondominant) and 11 gliomas (LGG, 1; MG, 10 [AG, 6; GM, 4]) in the left brain (dominant) were studied.