[Changes in the intracranial volume-pressure relations and visual evoked potentials produced by stabilized and compensated additional volume].
The experiment was carried out on 17 cats with intracranial volume-pressure relations changed by means of an epidural balloon of 1.0 ml volume (group I--12 cats) and 0.5 ml (group II--5 cats). The duration of compression exerted by the balloon was 360 min. The intracranial pressure, volume-pressure responses, resistance to cerebrospinal pressure resorption and visual evoked potentials were determined at intervals of 60 minutes. In group I pressure exerted by 1 ml balloon was followed by changes of volume-pressure relations and visual evoked potentials which increased with duration of the experiment. In group II the changes were noted only in the volume-pressure responses and resistance to CSF resorption at the time of balloon volume rise from 0 to 0.5 ml. Maintenance of this balloon volume in the cranial cavity caused no further changes of volume-pressure parameters or visual evoked potentials during 360 minutes of the experiment.
Jurkiewicz
J
J
Kliniki Neurochirurgii CMDiK PAN, Warszawie.
Czernicki
Z
Z
Pawłowski
G
G
Matysiak
E
E
D000818:Animals; D001929:Brain Edema / Q000209:etiology*; D002415:Cats; D015170:Cerebrospinal Fluid Pressure / Q000502:physiology*; D004195:Disease Models, Animal; D005074:Evoked Potentials, Visual / Q000502:physiology*; D006849:Hydrocephalus / Q000150:complications / Q000503:physiopathology*; D007427:Intracranial Pressure / Q000502:physiology*; D008959:Models, Neurological; D013997:Time Factors; D014793:Visual Cortex / Q000503:physiopathology*
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