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The effectiveness of extracranial-intracranial arterial bypass (EC-IC bypass) surgery for patients with hemodynamic compromise still remains controversial. In the present study, we evaluated the correlation between the pre- and post-surgical cerebral hemodynamics and long-term prognosis. 28 patients and a subsequent 21 patients (41 men, eight women: mean(More)
A case of posttraumatic delayed cerebral arterial spasm is presented. A 71-year-old man was admitted to our hospital with head injury. Neurological examination on admission only revealed consciousness disturbance (Japan Coma Scale 30). CT scan 19 hours after the injury demonstrated a contusional hematoma in the right frontal lobe, faint subarachnoid(More)
Our experience with the transcallosal approach to para-ventricular tumors is reviewed and our operative technique is described. A group of 7 patients with a variety of tumors affecting the lateral ventricle, 3rd ventricle and basal ganglia have been treated using an anterior transcallosal approach. Using a posterior transcallosal approach, we operated upon(More)
A 7-year-old boy was admitted to Hokkaido University Hospital complaining of headache and vomiting. On admission he was slightly confused and presented Parinaud's sign. CT scan revealed abnormal high density mass with contrast enhancement effect at the pineal region and obstructive hydrocephalus. Laboratory studies showed the normal value of human chorionic(More)
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