Cochlear microphonic changes after application of pressure to the scala media.
スポンサーリンク
概要
- 論文の詳細を見る
The measurement of pressure in the scala media during impaired hearing is of interest, because pressure changes may occur during attacks of vertigo in Meniere's disease.In this study, the changes of cochlear pressure and cochlear microphonics (CM), while acute pressure was applied to the scala media, were examined in 10 guinea pigs.Artificial endolymph was injected into the scala media (SM), and the endocochlear potential (EP) and CM were recorded simultaneously from an electrode within the scala media. Into another small hole opened in the scala vestibuli, a glass electrode was introduced to measure the pressure of the cochlear fluid by a WPI pressure measuring system.Apnea induced a decrease of EP & CM and increase of cochlear lymphatic pressure. This pressure had no direct relation to the decrease of EP & CM. When the pressure was applied to the scala media, the decrease of CM occurred exponentially.The lowest pressure applied, combined with complete disappearance of CM, was 2.4 mm H2O. This means that the CM generating system is completely destroyed by a pressure of 2.4 mm H2O.
- 耳鼻咽喉科臨床学会の論文
著者
関連論文
- 第34回 日本平衡神経科学会
- 1.中耳および内耳疾患における側頭骨の形態学的検討/2.末梢平衡感覚器における抗生物質障害の実験的研究/3.Stria vascularisとPlanum semilunatum の比較検討/4.筋弛緩剤による前庭性外直筋活動の機構/5.反復誘発筋電図からみた家兎一側迷路破壊後の筋緊張について/6. 迷路と視器の干渉について/7.カエル摘出半規管受容器のAdaptationについて/カエル球形嚢神経および外半規管膨大部神経の動作流に関する知見/9.頭位変化と眼球偏
- 1.前庭感覚上皮の受傷性について/2.耳中毒性薬物による内耳病変/3.免疫学的手法による実験的平衡障害/4.前庭性外直筋活動について/5.平衡機能検査成績の経過観察/6.メニエール病長期観察例より得たる知見
- 滲出性中耳炎と耳管機能--文献的考察
- Middle ear volume of middle ear diseases.
- 段階的鼓室成形術の検討
- 甲状腺手術後の甲状腺機能について (京都大学医学部耳鼻咽喉科学教室6年間の歩み(1977-1982年)--檜学教授還暦によせて)
- Clinical evaluation of Ketotifen (Zaditen) in perennial and seasonal allergic rhinitis.
- 前庭小脳におけるプルキェ細胞のカロリック反応とその反復刺激効果について
- 眩暈症に対する循環系ホルモン剤Rozagood-30の効果