温度の内耳死後変化に及ぼす影響に関する実験的研究
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概要
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The author made investigation on postmortem change depend on the temperture in the inner ear by Daito's inner ear irrigating fixation method with three ways that were 5°C, 15°C and 30°C in rabbits.The results were as follows.1)5°C after death. The hair cells showed no marked change in 6 hours, and were showed atrophic, slender and contained pycnotic nuclei from 12 hours after death. There showed no marked change in the stria vascularis and the supporting cells after 24 hours on postmortem specimen.The nuclei of the spinal ganglion cells showed no marked change till 6 hours after death, and were atrophic, slender and cotained pycnotic nuclei from 12 hours after death.The vestibule and the semicircular canal showed no marked change till 6 hours after death.2) 15°C after death. The hair cells showed no marked change in 3 hours, and tended to deteriolate from 6 hours after death. The supporting cells showed no marked change after 24 hours, while the stria vascularis tended to deteriolate from 12 hours after death.The nuclei of the spinal ganglion cells showed no marked change till 2 hours after death, and all nuclei became atrophic and slender after 6 hours.The vestibule and the semieircular canal showed no marked change till 6 hours after death.3) 30°C after death. The hair cells showed no marked change in 1 hour, and marked change from 3 hours, and tended to deteriolate from 12 hours. The supporting cells tended to deteriolate from 6 hours, while the siria vascularis tended to deteriolate from 3 hours.The nuclei of the spinal ganglion cells showed marked change after 1 hour, tended to derteriolate from 2 hours.The vestibule and the semicircular canal showed no change till 2 hours, and showed loosening of the epithelium after 3 hours.4) In 5°C after death the specimen showed no marked postmortem change histologically after 6 hours. The state at 15°C and 30°C corresponds to that respectively after 3 hours and 1 hours.
- 社団法人 日本耳鼻咽喉科学会の論文