著者

野村 泰之 濱田 敬永 斎藤 雄一郎 吉田 晋也 遠藤 壮平 鴫原 俊太郎 木田 亮紀

出版者

Japan Society for Equilibrium Research

雑誌

Equilibrium Research (ISSN:03855716)

巻号頁・発行日

vol.57, no.6, pp.608-614, 1998 (Released:2009-10-13)

参考文献数

17

被引用文献数

2 2

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Recently, because of the development of MRI, it is becoming apparent that there are some cases of cerebellar vascular disorder in the posterior cranial fossa among cases of sudden onset of rotatory vertigo. We reported two cases of sudden onset of rotatory vertigo caused by cerebellar infarction in the territory of the posterior inferior cerebellar artery (PICA) due to cervical occlusive injuries.Case 1. A 48-year-old male sustained a slight whip lash injury and after ten hours, experienced rotatory vertigo and hoarseness. When he came to our hospital, we could only detect hoarseness. However, vascular disorder in the posterior cranial fossa was suggested by the interview. MRI revealed left cerebellar and medulla oblongata infarction.Case 2. A 29-year-old male felt rotatory vertigo and vomited after clicking his neck. Upon closer examination, pure rotatory spontaneous nystagmus, sensory disorder accompanied by sensory dissociation in his face and disability in standing and walking were found, suggesting vascular disorder in the posterior cranial fossa. MRI showed infarction in the left inferior cerebellar region, vermis and left lateral-dorsal medulla oblongata. A dissecting aneurysm in the vertebral artery was found on subsequent angiography.In the Japanese literature, we could find only nine reported cases of cerebellar vascular disorder in the posterior cranial fossa due to the cervical occlusive injuries, in addition to our two cases.The severity of injuries and the period until onset of diagnostic symptoms varied. Therefore, tracing cerebellar vascular disorders due to cervical occlusive injury required not only neurological and neuro-otological findings, but also attention to the history of the original injury and the development of subsequent symptoms. Without a careful interview, it is very difficult to correctly establish the cause of the disorder.

著者

山辺 賢一郎 汪 群慧 成田 純也 吉田 晋也 森下 正人 白井 義人 尾川 博昭

出版者

Japan Society of Civil Engineers

雑誌

環境工学研究論文集 (ISSN:13415115)

巻号頁・発行日

vol.37, pp.81-88, 2000-11-13 (Released:2011-06-27)

参考文献数

14

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To develop a garbage recycling system including garbage disposal, lactic acid and biodegradable plastics production, the preservation and deodorization of garbage during storage and the explication of their mechanisms are very important. The changes of counts of viable cell in garbage collected from university's dining hall during the storage were observed. In spite of seasons, lactic acid bacteria became preferential bacteria after the garbage was stored for 24 hours. On the contrary, coliforms and clostridia that are indexes of putrefaction and pollution remarkably decreased. The coliforms were not detected after the 72- or 96- hour storage. No food poisoning bacteria, such as staphylococcus aureus and bacillus cereus, were detected after the 24 hours storage. From the results of experiment adding the staphylococcus aureus to the garbage, it was proved that the lactic acid bacteria also easily became preferential bacteria even if food poisoning bacteria gained predominance at the beginning of the storage. It is clear from this study that lactic acid fermentation during the storage process inhibits the growth of putrefactive bacteria and food poisoning bacteria, which, as a result, makes it possible to realize the preservation and deodorization of garbage.