1982 Volume 28 Issue 5Supplement3 Pages 990-1000
It is intended to clear the conditions of inner ear circulation through the fundamental research of inner ear circulatory system, as well as the study mainly on the cases of circulatory disturbance, especially insufficiency of blood pressure, clinically.
The outline is as follows. Namely, in the inner ear the presence of sympathic control was presumed with predominance in a-effect. Further, through the study of CO2 and anoxia influencing the oxygen partial tension of inner ear fiuid, inner ear blood flow, inner ear pressure, oxygen partial tension of cerebrospinal fluid, cerebral blood flow and cerebrospinal fluid pressure, it has been noted that the reaction pattern in the inner ear is roughly fairly similar to that in the brain. In addition, the inner ear pressure and blood flow were fouud to be closely related to the variation of cerebrozpinal fluid pressure via the total blood pressure, inner ear blood pressure or cochlear aqueduct, from the reaction anode of perilymphatic pressureunder the load of anoxia, as well as the findings of inner ear blood flow, EP, etc. in case the inner ear pressure was increased artificially. The influences of glycerol and other diuretics on the inner ear blood flow and inner ear oxygen tension were observed from the point of rupture of the round window, and the blood vessel and blood flow of the inner ear were obsrved through the round window. In addition, various findings were obtained about the inner ear circulation.
As clinical research, the results of animal experiment on the oxygen tension of innr eare fluid and and blood flow of inner ear may not be applied directly in the clinic, but it has been suggested that the tendency of hearing variation is influenced strongly by the inner ear blood vessel, total blood pressure and cardiac output.
