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KMID : 0377619730250010051
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Korean Jungang Medical Journal
1973 Volume.25 No. 1 p.51 ~ p.57
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The Study of Patterns of Experimental Brain Horniation and Distortion Experimental Studies in Brain Compression
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Abstract
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Transtentorial herniation, a well recognized complication of expanding supratentorial lesions, is often heralded clinically by impairment of consciousness and changes in vital signs, resulting so frequently in decerebration and death. There have been relatively few attempts for experimental production of hernias.
The study of patterns of experimental brain herniation and distortion was carriedout on adult cat that harbored expanding lesion in the supratentorial epidural space.
The sea weed Laminaria, which was used as an chronic expanding lesion in this study, has a characteristic mode of expansion on contact with water. The expanding balloon with successive increments of fluid was used as an acute expanding mass.
The frontal lesions alike produced dorsally placed hernias which led to distortion and compression of the dorsal midbrain. The temporal and temporo-parietal lesions produced dorsolateral hernias which caused side-to-side narrowing of the dorsal midbrain and indention, skewing or shifting of the midbrain. The downward displacement of the cerebellum, tonsils and the brain stem led to antero-posterior narrowing, kinking and bending of the brain stem.
The cerebral herniation through the tentorial incisura and/or foramen magnum and midbrain distortion produced in cats corresponded morphologically with those in men.
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KEYWORD
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