Perioperative Disturbances with Cerebral Effects

Abstract

Disorders of the physiological balance result in EEG changes. The EEG has proven to be a highly sensitive indicator of alterations in cerebral function. Since various noxae may cause similar encephalographie phenomena, the EEG allows an evaluation of the extent and degree of cerebral alteration. Conclusions as to the actual cause are not possible from the EEG alone but can be made in conjunction with the clinical information. The course of EEG changes due to clear-cut alterations in cerebral perfusion and metabolism has been studied and is known to a certain extent.