頭部外傷における陽性棘波の再検討—その病因的意義に対する疑義

EEG abnormalities of head injury in children. Reappraisal

I．はじめに

　Gibbs^1）が1951年，14および6c/sec陽性棘波を記載して以来，この波形が自律神経障害，行動異常さらにけいれん発作などに関係ある異常波として注目され，報告されて来た。

　しかし，一方，Walterらのごとく，この陽性棘波とこれまでいわれて来ている臨床症状との間には有意の関係はないという報告^11）もみられ，さらには，正常児においてもその58％に本波形が認められたという結果さえ報告^7）されている。

　An attention was drawn to the existence, if any, of the specific EEG abnormalities in cases of head injury in children. The survey was done on the EEG findings (positive spikes) of 315 cases of head injury. They were all under the age of 15 years old and were seen from 1965 to 1969. The EEGs were compared with those of 249 cases of primary school children as a control study.

　The result was as follows: 1) Positive spikes were seen in 31% of the head injury group, but no direct relation was found between this EEG pattern and clinical symptoms or signs.