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  • 1
    Electronic Resource
    Electronic Resource
    Regulation of inner ear fluid in the guinea pig cochlea after the application of saturated NaCl solution to the round window membrane (1999)
    Springer
    European archives of oto-rhino-laryngology and head & neck 256 (1999), S. S2 
    Details
    ISSN: 1434-4726
    Keywords: Key words Clochlear physiology ; Potassium ion and ; sodium ion transport ; Endolymph ; Perilymph
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The regulation of K+ and Na+ in the inner ear fluid of the guinea pig was studied after the application of saturated NaCl solution to the round window membrane. K+ and Na+ activities in the scala tympani increased rapidly and then decreased. K+ activity in the scala media increased immediately, but Na+ activity continued to increase during the period of observation. K+ activity in the scala vestibuli continued to increase in the observation period. Na+ activity in the scala vestibuli increased and then decreased. The endocochlear potential decreased immediately to approximately 20% of its initial level. Total activities of K+ and Na+ increased immediately and then decreased in both the scala tympani and scala media. The total activity of K+ and Na+ increased slowly and showed no regulatory decrease in the scala vestibuli. Thus, changing patterns in the total activity of K+ and Na+ were similar for the scala tympani and scala media, but not for the scala media and the scala vestibuli. Different patterns of K+ and Na+ activities among the three scalae indicate that their mechanisms for regulating inner ear fluid differ.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00014147
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Congenital malformation of the inner ear associated with recurrent meningitis (1999)
    Springer
    European archives of oto-rhino-laryngology and head & neck 256 (1999), S. S11 
    Details
    ISSN: 1434-4726
    Keywords: Key words Congenital labyrinthine deformities ; Cerebrospinal fluid fistula ; Meningitis ; Computed ; tomography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Congenital deformities of the labyrinth of the inner ear can be associated with meningitis and varying degrees of hearing loss or deafness. A recurrence of meningitis is due to the development of a fistulous communication between the subarachnoid space and the middle ear cavity, and can prove lethal. An illustrative case of a 4-year-old Japanese girl with bilateral severe hearing loss, recurrend meningitis and malformations of the inner ear and stapes footplate is presented. Removal of the stapes during tympanotomy provoked a gush of cerebrospinal fluid. The defect was repaired successfully, and there has been no further episodes of meningitis to date.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00014144
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Ramsay-Hunt syndrome in a 4-year-old child (1999)
    Springer
    European archives of oto-rhino-laryngology and head & neck 256 (1999), S. S6 
    Details
    ISSN: 1434-4726
    Keywords: Key words Ramsay-Hunt syndrome ; Facial palsy in children ; Varicella zoster virus ; Acyclovir
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The Ramsay-Hunt syndrome mostly affects adults, but a small number of children with herpes zoster oticus have been reported. We describe a case of Ramsay Hunt syndrome in a healthy 4-year-old boy. He developed varicella at 7 months of age. At the age of 4 years, he complained of pain in his right ear, and herpes zoster vesicles were noted on his right pinna. Three days later, he developed right facial paralysis. He was treated with intravenous acyclovir and methylprednisolone. One month later, his facial paralysis had fully resolved.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00014156
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    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Huge hamartoma with inverted papilloma in the nasal cavity (1999)
    Springer
    European archives of oto-rhino-laryngology and head & neck 256 (1999), S. S33 
    Details
    ISSN: 1434-4726
    Keywords: Key words Hamartoma ; Inverted papilloma ; Surgical treatment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report clinical experience in managing a 46-year-old Japanese man with long-standing nasal obstruction resulting from a huge left nasal mass. Computed tomography, magnetic resonance imaging and biopsy were used to make a provisional diagnosis of inverted papilloma. The mass was resected via a frontal approach combined with rhinotomy. Histopathologic examination of the resected specimen was consistent with a hamartoma that included an inverted papilloma on a portion of its surface. In addition to being rare tumors in the nasal cavity, we believe that our patient’s tumor the largest nasal hamartoma ever reported.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/PL00014150
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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