人の蝸牛小管の通過性に関する研究
1960 年 63 巻 11 号 p. 2298-2306
詳細
1960 年 63 巻 11 号 p. 2298-2306
Anther observed the passability of the human cochlear aqueduct by using the method to inject the methylen blue solution into the window of cochlea.
The results were as follows.
1) On the specimen picked out from dead body which had long time after death, it is obvious that mistaken result may take by post mortem changes.
2) Out of the 68 specimens which picked out during the 12th hours after death, 42 per cent of cases was passable under 30mmHg pressure.
3) Though the duct might be pass way of blood, bacteria and cerebrospinal pressure, auther faild to proove the relationship between cochlear aqueduct and hearing function of cochlea.
4) In the specimens of under 20years old, 75 per cent of cochlear aqueduct had free communication, but in the specimens of over 21 years old only 32per cent shows the passability. The remarkable difference between both groups were believed.
