抄録
Examined the EEG evaluation results of 218 aged patients over 60 years old with head injuries, in order to explore the relationship between the EEG evaluation results and the period of unconsciousness, period from injuries to the EEG test, skeletal bone fracture, and remarkable clinical symptoms. As a result, it was found out that: 1) The older the age, the higher the frequency of abnormal EEG, 2) The longer the period of unconsciousness, the higher the frequency of abnormal EEG, while the longer the period of unconsciousness, the longer the period of abnormal EEG after injuries, 3) Those with skull fracture and/or remarkable clinical symptoms indicated higher frequency of abnormal EEG. Brains of aged people are prone to indicate highly notable changes once external forces are applied to them, and this is attributed to the changes usually taking place as the age advances, unlike the changes indicated by the immature brains of infants. Hence, clinical application of EEG should by done with consideration paid in connection with precise clinical examinations. It should be emphasized that enough care should be taken in its evaluation by performing repeated EEG tests with some intervals.
