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Results for “Labyrinthine Fluids”

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At least 199 records · Page 11Linked to original sources
PubMed1983

Perilymphatic gusher and stapes surgery. A predictable complication?

The cases of 3 patients who had 'perilymph gushers' following stapes surgery are reported. The similarities in their clinical histories and examinations are discussed. All 3 were males and had progressive mixed deafness presenting in early childhood. Polytomography revealed anomalies in both the vestibule and internal auditory meatus in 1 patient; the stapedial reflex was unexpectedly large in all 3. Further preoperative evaluation of these features in other patients and patients affected by the X-linked deafness syndrome is indicated in order to assess the validity of the above criteria.

Adult↗
PubMed1983

Immunology of the inner ear: response of the inner ear to antigen challenge.

The relationship of the inner ear to host immunity and the immunoresponsiveness of the inner ear to antigen challenge were investigated. A radioimmunoassay was used to quantitate antibody titers to keyhole-limpet hemocyanin generated in the serum, perilymph, and CSF of guinea pigs following systemic or inner ear immunizations. The results of these experiments demonstrate (1) the blood-labyrinth barrier is analogous to the blood-brain barrier with respect to immunoglobulin equilibrium, (2) the inner ear is capable of responding to antigen challenge, and (3) the inner ear is an effective route for systemic immunization.

Animals↗
PubMedDate not supplied

Fluid pathways in temporal bones.

Five temporal bones were serially sectioned and studied concerning spread of erythrocytes and blood-derived precipitate in patients who died from subarachnoid hemorrhage. Erythrocytes followed the natural pathways--the cochlear aqueduct, the cochlear, vestibular, facial and glossopharyngeal nerves, and were demonstrable in the inner ear fluid spaces. The temporal bone marrow spaces were also filled with erythrocytes, particularly in the hypotympanal area. In the microimmunoelectrophoresis, no specific precipitation lines formed between the anti-CSF serum from rabbits and middle ear exudate from human ears with acute otitis media. Although, in animals, middle ear spaces have been shown to be connected to the middle ear space this does not seem to apply to human ears, and CSF fluid components are not involved in the formation of middle ear exudate.

Adult↗
PubMed1980

Species differences in inner ear fluids.

Inner ear fluids of guinea pigs and cats were analyzed for sodium, potassium, chloride, glucose, and total protein to determine species differences in chemical compositions. In the scala vestibuli perilymph and scala tympani perilymph, sodium potassium, and choride levels in the guinea pig were lower than in the cat. The protein levels in the scala vestibuli perilymph and scala tympani perilymph of the guinea pig were lower than those of the cat. The glucose levels in the guinea pig were higher in the scala vestibuli perilymph and scala tympani perilymph, as compared to findings in the cat. Regarding the utricular endolymph, there were significant differences between guinea pigs and cats in sodium and potassium concentrations; the concentration in the former being higher in sodium and lower in potassium. These findings are pertinent for the phylogenetic studies on inner ear fluid biochemistry.

Animals↗