[Local cerebral blood flow and oxygen tension at different stages of surgical intervention in patients with meningiomas of the superior sagittal sinus].

The local cerebral blood flow, oxygen tension, local impedance and intragastric pressure were examined in 13 patients with meningiomas of the middle third of the apical sagittal sinus at various stages of surgery including those after ablation of the intrasinus node and its reconstruction. In all the patients the decompressive cranial trepanation showed a blood stream enhancement but on the meningioma side. It is concluded that the degree of disturbances of oxygenative metabolism and blood circulation after the removal and reconstruction of the intrasinus node was dependent on the variant of the sinus injury.