PMID: 2495339Feb 1, 1989Paper

Changes in cranial CSF volume during hypercapnia and hypocapnia

Journal of Neurology, Neurosurgery, and Psychiatry
R GrantG M Teasdale

Abstract

Magnetic resonance imaging was used to measure the effect of inhalation of 7% CO2 and hyperventilation with 60% O2 on human cranial cerebrospinal fluid volume. During CO2 inhalation there was a reduction in the cranial CSF volume ranging from 0.7-23.7 ml (mean 9.36 ml). The degree of reduction in cranial CSF volume was independent of the individual subject's increase in end-expiratory pCO2 or mean arterial blood pressure, in response to hypercapnia. During hyperventilation with high concentration oxygen the cranial CSF volume increased in all subjects (range 0.7-26.7 ml, mean 12.7 ml). The mean changes in cranial CSF volume, induced by hypercapnia and hypocapnia, were very similar to the expected reciprocal changes in cerebral blood volume.

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Citations

Mar 20, 2002·Current Neurology and Neuroscience Reports·B Mokri
Apr 20, 2001·Current Pain and Headache Reports·B Mokri
May 1, 1991·Journal of Neurology, Neurosurgery, and Psychiatry·R GrantG M Teasdale
Jun 22, 2010·Journal of Theoretical Biology·Lambertus A PeletierPiet H van der Graaf
Aug 4, 2018·Journal of Cerebral Blood Flow and Metabolism : Official Journal of the International Society of Cerebral Blood Flow and Metabolism·Mark P McAvoyMarcus E Raichle
May 2, 2021·Experimental Physiology·Jay M J R CarrPhilip N Ainslie
Nov 4, 2021·Experimental Physiology·Jay M J R CarrRyan L Hoiland

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