title: Intrahemispheric gradients of brain tissue pressure in patients with brain tumours.
abstract: The authors report on 14 patients in whom cerebral tissue pressure was recorded after operation for brain tumours. Cerebral tissue pressure was recorded by a 5 French catheter with two microtransducers. The transducers were placed intraoperatively in the wall of the tumour cavity and in a distance of approximately 2.5 cm. Differences between both pressures from 4 to 28 mmHg were observed. They were higher in patients with glioblastomas and meningiomas than in patients with intracranial metastases. In 7 patients proximal tissue pressure was higher than distal. In 4 patients the contrary was observed. Discussing the literature the authors think intrahemispheric changes of brain water content, blood flow, and brain tissue elastance to be responsible for this phenomenon.
authors.affiliation: Neurosurgical Clinic, University of Düsseldorf, Federal Republic of Germany.
authors.forename: J
authors.initials: J
authors.lastname: Piek
authors.forename: P
authors.initials: P
authors.lastname: Plewe
authors.forename: W J
authors.initials: WJ
authors.lastname: Bock
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005910:Glioma / Q000503:physiopathology* / Q000601:surgery; D006801:Humans; D007427:Intracranial Pressure; D008297:Male; D008577:Meningeal Neoplasms / Q000503:physiopathology* / Q000601:surgery; D008579:Meningioma / Q000503:physiopathology* / Q000601:surgery; D008875:Middle Aged