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J Korean Bal Soc > Volume 3(1); 2004 > Article
Journal of the Korean Balance Society 2004;3(1): 173-176.
방향전환성 두위안진을 보이는 외상성 외림프 누공
, , , 구자원1, 김시환1, 김지수2, 홍성화3
분당서울대학교병원 이비인후과1, 분당 서울대학교병원 신경과2, 성균관의대 삼성서울병원 이비인후과3
Traumatic Perilymphatic Fistula Presenting with Direction-Changing Positional Nystagmus
Ja Won Koo, Si Whan Kim, Ji Soo Kim, Sung Wha Hong
1Department of Otolaryngology, Seoul National University Bundang Hospital, Seongnam, Korea.
2Department of Neurology, Seoul National University Bundang Hospital, Seongnam, Korea. jisookim@snu.ac.kr
3Department of Otolaryngology, Samsung Medical Center, Seoul, Korea.
Diagnosis of perilymphatic fistula (PLF) is considered in the patient presenting hearing loss associated with ataxia after penetrating injury of the tympanic membrane. PLF accompanies mixed type hearing loss and paralytic nystagmus. If audiovestibular symptoms and signs are not definite for those patients, in whom PLF is highly suspicious, they can be induced by affected ear down position. The direction of nystagmus induced by position change was reported either toward or away from the affected ear. But the direction changing nature has not been noted in the previous literature. We report on a case of traumatic PLF presented with direction changing positional nystagmus and discuss the possible mechanism involved in this case. Key Words : Positional nystagmus, Perilymphatic fistula
Keywords: Positional nystagmus; Perilymphatic fistula
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