Diagnostic capabilities of lumbar puncture in patients who have suffered in the past closed brain trauma and neuroinfection

Our task was to find out the possibility of wider use of lumbar puncture for diagnostic purposes and to unify the registration of the data obtained. To do this, we performed the Queckenstedt test in patients with sequelae of closed brain trauma who had no contraindications to lumbar puncture with the study of CSF dynamics (fundus congestion, Bruns syndrome, bulbar syndrome). The following six indicators were recorded: CSF pressure (LD) in the patient's lying position; LD in the sitting position of the patient; maximum LD with Kvekkenstedt's test (after 10 s of continuous compression of the jugular veins); minimum LD at Kvekkenstedt's test (10 s after the termination of compression of the jugular veins); LD after the release of a certain (usually 3-6 ppm) amount of cerebrospinal fluid required for laboratory research; the total amount of released liquor, usually collected in three test tubes - for clinical (protein, cytosis, sediment microscopy), biochemical (sugar, chlorides, calcium, etc.) and serological (Wasserman river, etc.) studies.