Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology · 2005
Are vestibular sensory cells preserved after destruction of Scarpa's ganglion? A study based on metastatic tumors of temporal bone.
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Suzukawa Keigo, Yamasoba Tatsuya, Tsuzuku Toshihiro, Kaga Kimitaka
Аннотация
OBJECTIVE: The contribution of nerve fibers to the maintenance of vestibular sensory cells is a controversial issue in previous studies using animals and has not yet been studied in humans. The authors investigated this issue by observing vestibular end organs in the temporal bone of three patients in whom the internal auditory canal was infiltrated with tumor cells, and Scarpa's ganglion cells showed complete degeneration.
STUDY DESIGN: Retrospective case review.
SETTING: University Hospital, Department of Otolaryngology.
PATIENTS: Three patients with malignant metastatic temporal bone tumors.
INTERVENTION: We investigated the preservative state of vestibular sensory hair cells with the Scalpa's ganglion was destructed.
MAIN OUTCOME MEASURES: Maintenances of vestibular sensory hair cells.
RESULTS: We found that sensory cells were intact despite the severe destruction of Scarpa's ganglion cells in two of the patients.
CONCLUSION: The findings suggest that human vestibular sensory cells can be maintained for an indefinite period after denervation.
STUDY DESIGN: Retrospective case review.
SETTING: University Hospital, Department of Otolaryngology.
PATIENTS: Three patients with malignant metastatic temporal bone tumors.
INTERVENTION: We investigated the preservative state of vestibular sensory hair cells with the Scalpa's ganglion was destructed.
MAIN OUTCOME MEASURES: Maintenances of vestibular sensory hair cells.
RESULTS: We found that sensory cells were intact despite the severe destruction of Scarpa's ganglion cells in two of the patients.
CONCLUSION: The findings suggest that human vestibular sensory cells can be maintained for an indefinite period after denervation.