[Mechanisms of hydrocephalus development in patients with parasagittal meningiomas]

The work deals with the identification of the main mechanisms of hydrocephalus development in patients with parasagittal meningiomas who, besides the additional volume in the cranial cavity, have some degree of venous drainage disorders as a rule. This leads to the development of intracranial hypertension and often to hydrocephalus. From the analysis of the quantitative parameters characterizing the viscous-resilient properties of the brain, the c.s.f. changes, the intrasinus pressure according to the phase of the clinical manifestation of intracranial hypertension, and the relation of the tumor to the superior sagittal sinus and the falciform process the authors gained important information on changes of the brain ventricles in patients with tumors of parasagittal location.