Journal of neurosurgery
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Journal of neurosurgery · Nov 1976
Microsurgery of Arnold-Chiari malformation in adults with and without hydromyelia.
Microsurgical exploration of 15 adults with Arnold-Chiari malformation with and without hydromyelia using 3 to 20 X magnification has led to the following conclusions. Hydromyelia, associated with Arnold-Chiari malformation, is a progressive mechanical disorder that causes spinal cord deficits by pressure distention of the cord. ⋯ If Pantopaque myelography in patients in the supine position shows the Arnold-Chiari malformation, hydromyelia can be established as a cause of central cord deficit even if myelography shows the cord size to be normal. Syringomyelia, traditionally considered a degenerative disease, is a less common cause of a slowly progressive central cord deficit than either hydromyelia or intramedullary tumor.
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Journal of neurosurgery · Nov 1976
Effect of increasing the plasma oxygen diffusivity on experimental cryogenic edema.
Mongrel cats with experimental cryogenic brain lesions were treated with the carotenoid compound crocetin. It has been shown that crocetin increases the diffusion speed of oxygen through plasma, and should provide a net increase in available oxygen to the capillary endothelial cell. The treated group of animals showed a significant reduction in edema as compared to a comparable control group. It is suggested that oxygen availability is an important factor in vasogenic edema.
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Journal of neurosurgery · May 1976
Case ReportsMoyamoya disease as a cause of subarachnoid hemorrhage in a Negro patient. Case report.
The authors describe a case of subarachnoid hemorrhage secondary to moyamoya disease in an adult Negro. To the authors' knowledge, this is the first such case reported. ⋯ The cause is unknown. Treatment consists of supportive care; the prognosis is variable.
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Journal of neurosurgery · Jan 1976
Case Reports Historical ArticleCompound elevated fractures of the skull.
The author presents two cases of compound elevated fractures of the skull and discusses the mechanics of their production. These lesions, seldom recognized in modern clinical practice, are first described in the oldest scientific and surgical treatise known, the Edwin Smith Surgical Papyrus, over 5000 years ago.
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Journal of neurosurgery · Jan 1976
Case ReportsAnatomical features of the straight sinus and its tributaries.
The authors report a variety of arrangements of the venous channels comprising the straight sinus (sinus rectus) and its connections during a continuing study of the cerebral sinuses and their tributaries. In approximately 85% of 131 specimens of dura mater with enclosed venous sinuses derived from fresh cadavers, the straight sinus was represented by a single midline tentorial channel whereas in the remaining 15%, segments of it were doubled and in a few, tripled. ⋯ Also in no specimens were the patterns of venous channels in the leaves of the tentorium cerebelli alike. The course, size, and connections of all the tributaries of the straight sinus have been studied and consideration given to their potentials as collateral pathways in the event either the vein of Galen or the straight sinus itself were occluded.