[EEG in the diagnosis of brain death. A rare bioelectrical artifact]

The Authors, starting from a clinical observation of brain death, demonstrate that an EEG tracing can undergo some modifications which are linked to the flask distension of the endotracheal tube. In fact, when there is a passage of air between the wall of the tube and the wall of the windpipe passage that we have when the flask is not adequately full of air, we get some bioelectrical modifications. This kind of modifications influence the tracing itself and they are also able to engender the suspicious of a renewal of cerebral activity.