頭部外傷とパルキンソニスムス

ON THE RELATION BETWEEN BRAIN-TRAUMA AND PARKINSONISM

I．緒言

　頭部外傷とパルキンソニスムスの関聯は，内容的に複雑多彩であり，一義的に帰一し難い事は，すでに小沼教授により，多くの文献と自家症例について検討され，且つ論じられているが^2）3），それによると，各立場又は説によつて，およそ次の如く大別し得る。

　第I群　外傷によつて生じた震顫麻痺

Prof. Dr. KONUMA has already reported about this problem bringing out his own 13 cases treated in our clinic before. 1951.

There were obserbed 8 cases treated then following 6 years in our clinic which seems to have high brobability on the cerebral-traumatic origin of Parkinsonism. 3 cases of them were reoognized as post-traumatic Par-kinsonism, and in other cases, it seems that the trauma played important role to the mani-festation of the symptoms of Parkinsonism.

Concerning the mode of trauma, almost all cases were brain-contusion, and it seems to appropriate that the 3 cases, which had se-rious contusions and followed by loss of cons-ciousness, were recognized as the posttrau-matic Parkinsonism.

The symptoms were atypical in most of cases, and 4 cases take the appearance of Hemipar-kinsonism. These are typical symptom for traumatic origin of Parkinsonism as other authors having mentioned too. Tremor is not so characteristic as Paralysis agitans.

In 3 cases we respected emotional irrita-bility anc displeasure which are common in aftereffect of brain-traumata.