Intrabrain Pressure, Cerebrospinal Fluid Pressure and the PV Function of Craniospinal System Elasticity in Patients after the Extraction of Tumors from the Basal Region and Posterior Fossa
In order to determine the mechanical parameters of the craniospinal system in neurosurgical patients, we have studied the effects of changes in the volume of the fluid in the ventricular system of the brain on the ventricular CSF pressure and on the intrabrain interstitial fluid (ISF) pressure. We supposed that these effects in patients with increased CSF pressure, after the extraction of tumors from the posterior fossa would be noticeably different from those in patients with decreased or normal CSF pressure, after the extraction of tumors from the basal region. We have also studied in these patients the time constants of the relaxation in the craniospinal system with increase in the fluid volume in this system, and of the recovery of the CSF pressure to its initial value after rapid decrease of the fluid volume.
KeywordsPosterior Fossa Basal Region Neurosurgical Patient Interstitial Fluid Pressure Normal Pressure Hydrocephalus
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