[Electroencephalographic study of a case of neonatal herpes encephalitis (author's transl)].

This report describes the serial E.E.G. changes occurring over 6 weeks in a particularly interesting case of neonatal herpes encephalitis commencing on the 13th day of life. Atypical periodic complexes occurred briefly on the fifteenth day and disappeared on the 21st day. These focal complexes were less characteristic than those seen in the older child or adult. On the 27th day E.E.G. activity disappeared contrasting with the preservation of organised sleep recognised by polygraph studies using ocular movement, respiration and chin tonus. At 2 months the child no longer was conscious, E.E.G. activity totally absent but sleep organisation persisted with intense ocular motility.