Alternobaric vertigo 氣壓變動性眩暈
(Tintinalli's Emergency Medicine)
氣壓變動性眩暈ALTERNOBARIC VERTIGO
不常見, 成因是單側外耳道有東西塞住(耳屎,耳塞), 上升過程在密閉的外耳道壓力差上升, 兩側不同的壓力差造成前庭神經不對稱的電脈衝, 傳到腦部引起不平衡的感覺, 造成眩暈症, 通常是短暫的, 不需要治療
During ascent, the physics of gas in air-containing organs is, of course, opposite that of descent—that is, air will expand as the pressure decreases. Air will flow through the ostia of the sinuses, and the expanding air in the middle ear will open the Eustachian tube (much like during takeoff in an airplane). Should air be trapped temporarily in one middle
ear cavity, the pressure differential may cause unequal vestibular impulses to the brain, resulting in vertigo (alternobaric vertigo). This is usually transient and generally requires no specific treatment.
氣壓變動性眩暈ALTERNOBARIC VERTIGO
不常見, 成因是單側外耳道有東西塞住(耳屎,耳塞), 上升過程在密閉的外耳道壓力差上升, 兩側不同的壓力差造成前庭神經不對稱的電脈衝, 傳到腦部引起不平衡的感覺, 造成眩暈症, 通常是短暫的, 不需要治療
During ascent, the physics of gas in air-containing organs is, of course, opposite that of descent—that is, air will expand as the pressure decreases. Air will flow through the ostia of the sinuses, and the expanding air in the middle ear will open the Eustachian tube (much like during takeoff in an airplane). Should air be trapped temporarily in one middle
ear cavity, the pressure differential may cause unequal vestibular impulses to the brain, resulting in vertigo (alternobaric vertigo). This is usually transient and generally requires no specific treatment.
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