RESUMO
Anterior communicating artery (ACoA) aneurysms may rarely lead to oculomotor nerve palsy. We present here interesting cases in which isolated unilateral adduction paresis mimicking internuclear ophthalmoplegia (INO) was one of the symptoms of suspicious impending ruptured aneurysm of the ACoA. Careful neurologic examination is crucial for early discrimination with INO and oculomotor palsy.
RESUMO
Diffusion-weighted imaging (DWI) hyperintensities corresponding to ischemic areas have been regarded as an ischemic core. However, several studies have demonstrated the reversibility of DWI hyperintense signals in hyperacute stroke patients. We experienced the DWI reversibility of posterior circulation ischemia after revascularization of the proximal extracranial vertebral artery. The perfusion of the posterior circulation might be significantly reduced due to bilateral vertebral art ery occlusion. Considering this case, early improvement of the perfusion of the ischemic area might key role of DWI reversibility.
RESUMO
Cerebral intraventricular hemorrhage (IVH) is an extremely rare complication of carotid artery stenting (CAS). Fully dilated terminal arteries of a chronic, severely stenosed proximal artery could be ruptured by impaired autoregulation of cerebral blood flow. Hyperperfusion syndrome can occur even if there is no blood pressure fluctuation during the CAS. We report a case of an isolated IVH that occurred hours after CAS.
RESUMO
Cerebral intraventricular hemorrhage (IVH) is an extremely rare complication of carotid artery stenting (CAS). Fully dilated terminal arteries of a chronic, severely stenosed proximal artery could be ruptured by impaired autoregulation of cerebral blood flow. Hyperperfusion syndrome can occur even if there is no blood pressure fluctuation during the CAS. We report a case of an isolated IVH that occurred hours after CAS.