眞性三叉神經痛に對する一考察

Consideration on the Essential Trigeminal Neuralgia.

I．緒言

　眞性三叉神經痛は症候性なるものと異り，原因を何等見出すことが出來ず，特發性と認められるものであるがこの本態については現在迄幾多の論議を重ねられてきた。併し未だ不明といわざるを得ない。或るものは三叉神經末梢部に原因を求め，或るものはガツセル氏神經節に，又は視床内部に病竈が存在するといい又或るものは交感神經系殊に血管運動神經の障碍等にその原因を求めようとしているが，茲に私共の觀察し得た成績より眞性三叉神經痛の本態及び症候について知見を追加し，一考察を加えてみたいと思う。

We measured the facial skin temperature of the patients suffering from the essential trigeminal neuralgia and on the data obtained 3 groups were found in the facial skin tempera-ture when the patients were lying silent in bed.

In the A-group the temperature of the ill side was lower than that of the sound side, in the B-group those of the both sides were almost the same and in the C-group that of the ill sides was higher than that of the sound aide. Many of the patients in the Agroup were those who had ever had no trigeminal neuralgia.

There were also 3 groups in the skin temp-rature changes of the face on the pilocarpine test and others and in many cases it could be found out that the changes on the ill side wereslower than that on the sound side and those cases were those who had ever had no tri-geminal neuralgia.

according to this fact and our other experi-mental data we have revealed that the vasod-ilator (parasympathetic) tonus on the face of the neuralgic patients were under normal level on the ill side. We have assumed this fact behind the etiology of neuralgia.

5 clinical forms of the essential trigeminal neuralgia were classified by prof. Y. Ozawa, those are Silent, Tic, Licking, Rubbing and Criing form. We tried to find out the interrel-ation between the facial skin temperature and the resulst of the intragasserian injection therapy in vain found. So we may say probably that these forms should be differentiated by the characters of the patients and other factors.