title: Coexisting alpha pattern coma, theta pattern coma and spindle coma.
abstract: Abnormal ectopic rhythms, such as alpha-theta activities and spindles, occur in comatose patients. A case is presented in which the EEG of a comatose patient showed coexisting alpha-theta pattern activities and spindles. It is concluded that the coexistence of these rhythmic patterns in the EEG of a comatose patient implies continued physiologic functioning of a thalamocortical system deafferented by brainstem dysfunction and a lesser degree of cortical dysfunction.
mesh_terms: D000513:Alpha Rhythm; D001933:Brain Stem / Q000503:physiopathology; D002540:Cerebral Cortex / Q000503:physiopathology; D003128:Coma / Q000503:physiopathology*; D004569:Electroencephalography; D006801:Humans; D008297:Male; D008875:Middle Aged; D013788:Thalamus / Q000503:physiopathology; D013826:Theta Rhythm