Takeuchi S, Takeda T, Saito H
Department of Otolaryngology, Kochi Medical School, Japan.
Acta Otolaryngol. 1990 Jan-Feb;109(1-2):93-100. doi: 10.3109/00016489009107419.
The pressure difference between the perilymph and the endolymph was studied in guinea pigs, using two sets of a servo-nulling system. Asphyxia caused characteristic pressure changes both in the perilymph and in the endolymph, but no pressure difference was seen between them. When the perilymphatic space was opened to the atmosphere, asphyxia did not cause such dynamic pressure changes either on the perilymph or the endolymph. An increase in the perilymphatic pressure induced by the infusion of artificial cerebrospinal fluid into the subarachnoid space resulted in an increase in the endolymphatic pressure, but no pressure difference between the endolymph and the perilymph was evident, regardless of the patency of the vestibular aqueduct. The authors conclude that the endolymphatic pressure is dependent on the perilymphatic pressure and there is no pressure difference between them.
利用两套伺服归零系统，对豚鼠内淋巴和外淋巴之间的压力差进行了研究。窒息会导致外淋巴和内淋巴出现特征性的压力变化，但两者之间未观察到压力差。当外淋巴间隙与大气相通时，窒息对外淋巴或内淋巴均未引起此类动态压力变化。向蛛网膜下腔注入人工脑脊液导致外淋巴压力升高，进而引起内淋巴压力升高，但无论前庭导水管是否通畅，内淋巴和外淋巴之间均未出现明显的压力差。作者得出结论，内淋巴压力取决于外淋巴压力，且两者之间不存在压力差。
