Journal of neurosurgery
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Journal of neurosurgery · Dec 1989
Comment Letter Case ReportsTransmission of Creutzfeldt-Jakob disease by dural cadaveric graft.
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Variations of the tentorial sinus of cadaver cerebellar tentoria were examined under a surgical microscope. The tentorial sinuses were classified into four groups: Group I, in which the sinus received venous blood from the cerebral hemisphere; Group II, in which the sinus drains the cerebellum; Groups III, in which the sinus originates in the tentorium itself; and Group IV, in which the sinus originates from a vein bridging to the tentorial free edge. The tentorial sinuses of Groups I and II were frequently located in the posterior portion of the tentorium. ⋯ The tentorial sinuses of Groups III and IV were located near the tentorial free edge or the straight sinus. The draining patterns of the tentorial sinuses and their draining veins (so-called "bridging veins") were present in most cases. Knowledge of this anatomy can benefit the neurosurgeon carrying out repair near or on the cerebellar tentorium.
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Journal of neurosurgery · Dec 1989
Case ReportsTraumatic carotid artery dissection: diagnosis and treatment.
Early diagnosis and successful management of traumatic carotid artery dissections require a high index of clinical suspicion. The diagnostic study of choice is cerebral arteriography. In this paper, 24 cases of traumatic carotid artery dissection are described. ⋯ Patients detected early with mild neurological deficits fared well with treatment, while those with profound neurological deficits and delayed diagnoses had poor outcomes. Aggressive nonsurgical treatment is advocated including anticoagulation therapy for prevention of progressive thrombosis and arterial occlusion and/or distal arterial embolization with resultant cerebral ischemia. Direct surgical thromboendarterectomy is considered to carry high morbidity and mortality rates.
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Journal of neurosurgery · Dec 1989
Primary intraspinal neoplasms in Norway, 1955 to 1986. A population-based survey of 467 patients.
A survey of all patients (173 males and 294 females) registered with primary intraspinal neoplasms in the Norwegian Cancer Registry from 1955 through 1986 is presented. Annual age-adjusted incidence rates of new tumors per one million population were three for males and five for females. Altogether, 89% of the tumors were verified histologically. ⋯ Intraspinal ependymomas accounted for 34.5% of all 223 ependymomas of the central nervous system, whereas only 0.2% of the 3046 glioblastomas were found intraspinally. Patients with intraspinal meningioma had a better life expectancy than those with intracranial meningioma. The 5-year relative survival rate for patients with intraspinal ependymoma was 88.9% in contrast to 24.4% for patients with intracranial ependymoma.
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Journal of neurosurgery · Dec 1989
Comment Letter Comparative StudySurgical management of spinal fractures.