[Changes in CSF dynamics and performance tests after head injuries (author's transl)].

In a large series of head-injured patients (132 cases), we have selected 30 patients (mean age 43 years) with only primary school education: they have been investigated with isotope cisternography and psycodiagnostic tests. 19 underwent neurosurgical procedures (6 extradural haematomas, 8 subdural haematomas, 5 cerebral lacerations). These investigations have been carried at least six months after the head injury. We have used for isotopic cisternography RISA and In111-DTPA. Raven's Progressive Coloured Matrices and Immediate Memory Tests were performed. Cisternographic pictures were classified as 1) normal, 2) with asymmetrical diffusion, 3) with ventricular reflux and were correlated with the neuropsychological data. We have found ventricular reflux in 10 patients (5 underwent surgical procedures), asimmetrical diffusion in 15 patients (11 operated); in 5 cases cisternographic pictures were normal. Neuropsychological tests give quantitative data about progressive mental deterioration, in full agreement with cisternographic results.