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Relationship in Normal and Hydrocephalic Cats

Abraham Sahar, MD; Gerald M. Hochwald, MD; Joseph Ransohoff, MD

Arch Neurol. 1970;23(5):413-418.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

PRESSURE has repeatedly been demonstrated to be an important factor in bulk absorption of cerebrospinal fluid (CSF). The dependence of absorption on pressure was shown to be linear above a critical threshold pressure and thereafter over a wide pressure range.^1-4 A similar, although quantitatively different, relationship was shown to exist in hydrocephalus.^5,6

Regardless of the route of absorption, be it through the arachnoid villi in the normal animal⁷ or by an alternate transventricular pathway in hydrocephalus,^8,9 all CSF absorbed must ultimately find its way into the venous system. Consequently, the pressure instrumental in CSF absorption is actually the pressure gradient between the CSF and the venous systems. Furthermore, if venous pressure varies with CSF pressure, the change should also be linear but not parallel.

The present work is a study of the pressure relationship between the CSF system and the venous system as reflected in . . . [Full Text PDF of this Article]

Author Affiliations
New York

From the departments of neurosurgery (Drs. Sahar and Ransohoff) and neurology (Dr. Hochwald), New York University Medical Center, New York. Dr. Sahar is now with the Department of Neurosurgery, Hadassah Medical Center, Jerusalem, Israel.

Footnotes
Accepted for publication May 16, 1970.

Reprint requests to Department of Neurology, New York University Medical Center, 550 First Ave, New York 10016 (Dr. Hochwald).

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