Biomaterial Database

Electrocerebral silence and nasopharyngeal EEG. 1987

D Shukla, and A A Ammoumi

Department of Neurology, New York Medical College, Valhalla 10595.

This limited study of six comatose patients who showed clinical signs of brain death was conducted to seek answers to the proposed questions regarding the confirmation of concurrent activity in both scalp and nasopharyngeal electrode tracings, and the detection of any recordable activity from the nasopharyngeal electrodes once no further electrical activity is detected from the surface electrodes. It appears that the nasopharyngeal electrode tracings are as informative as scalp surface electrode tracing is as informative as a scalp surface electrodes tracing in cases of electrocerebral silence. Perhaps a larger patient population testing should be studied to re-affirm this observation.

UI	MeSH Term	Description	Entries
D001926	Brain Death	A state of prolonged irreversible cessation of all brain activity, including lower brain stem function with the complete absence of voluntary movements, responses to stimuli, brain stem reflexes, and spontaneous respirations. Reversible conditions which mimic this clinical state (e.g., sedative overdose, hypothermia, etc.) are excluded prior to making the determination of brain death. (From Adams et al., Principles of Neurology, 6th ed, pp348-9)	Brain Dead,Coma Depasse,Irreversible Coma,Brain Deads,Coma, Irreversible,Death, Brain
D003128	Coma	A profound state of unconsciousness associated with depressed cerebral activity from which the individual cannot be aroused. Coma generally occurs when there is dysfunction or injury involving both cerebral hemispheres or the brain stem RETICULAR FORMATION.	Comatose,Pseudocoma,Comas,Pseudocomas
D004566	Electrodes	Electric conductors through which electric currents enter or leave a medium, whether it be an electrolytic solution, solid, molten mass, gas, or vacuum.	Anode,Anode Materials,Cathode,Cathode Materials,Anode Material,Anodes,Cathode Material,Cathodes,Electrode,Material, Anode,Material, Cathode
D004569	Electroencephalography	Recording of electric currents developed in the brain by means of electrodes applied to the scalp, to the surface of the brain, or placed within the substance of the brain.	EEG,Electroencephalogram,Electroencephalograms
D006323	Heart Arrest	Cessation of heart beat or MYOCARDIAL CONTRACTION. If it is treated within a few minutes, heart arrest can be reversed in most cases to normal cardiac rhythm and effective circulation.	Asystole,Cardiac Arrest,Cardiopulmonary Arrest,Arrest, Cardiac,Arrest, Cardiopulmonary,Arrest, Heart,Asystoles
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man