Effects of general anaesthesia on size of cerebrospinal fluid spaces during and after pneumoencephalography.

Accuracy of ventricular volume estimation.

“…Pneumoencephalography does not provide a flawless independent estimate because the introduction of air into the ventricles changes ventricular size (Gawler et al, 1976). General anaesthesia confounds the problem still further (Moseley et al, 1977).…”

Exposure to Industrial Solvents and Brain Atrophy

“…Recent PEG findings have raised the question whether the increase in ventricular size is in some instances related to loss of brain substance or to distur bances of the cerebrospinal fluid dynamics. For example, it has been shown that the mode of anesthesia used during PEG has a significant effect on the size of ventricles 24 h after the procedure (20). Carlen et al (5) have recently shown that the ventricular size varies in a dynamic way among chronic alcoholics and they proposed that the reversible enlargement of the ventricular system represents a morphol ogical plasticity of the nervous system.…”