Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia
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Bilateral internal carotid artery dissections have been reported, but spontaneous bilateral dissections are rare. Internal carotid artery dissection can present with a spectrum of symptoms ranging from headache to completed stroke. ⋯ Bilateral internal carotid artery dissection (ICAD) should be considered in young patients with unexplained head and neck pain with or without focal neurological symptoms and signs. The increasing availability of imaging would sustain the higher index of suspicion.
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Case Reports
Ultrasound-guided evacuation of spontaneous intracerebral hematoma in the basal ganglia.
Real-time ultrasonography was used for the aspiration of intracerebral hematoma in the basal ganglia in 7 patients without signs of impending herniation. The ultrasound device was used to select the trajectory and target point for hematoma drainage. Ultrasound-guided aspiration was performed via a burr hole under local anesthesia. ⋯ The hematoma was then evacuated with urokinase irrigation. Ultrasound guidance allows simple, precise localization of the hematoma and the distance from the surface to the target can be calculated. Ultrasound-guided catheter placement for fibrinolysis and hematoma drainage is a simple and safe procedure.
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To assess the efficacy of a device using extraocular electrodes as a retinal prosthesis by evaluating the responses evoked in the visual cortex to electrical stimulation. ⋯ The ERP electrodes can be easily attached to the globe and are effective in electrically stimulating the retina, evoking responses in the primary visual cortex. Threshold charge-density was within safe limits for neural stimulation.