| 핵간안근마비에서 관찰되는 시소안진의 발병기전 |
| , , , , , , , 김지수1, 최광동1, 구자원2, 오경미3, 장재홍3, 박건우3, 이대희3, 한규철4 |
| 서울대학교 의과대학 신경과학교실1, 이비인후과학교실2, 고려대학교 의과대학 신경과학교실3, 가천의과대학교 이비인후과학교실4 |
| Possible Mechanism of Seesaw Nystagmus in Internuclear Ophthalmoplegia |
| Ji Soo Kim, Kwang Dong Choi, Ja Won Koo, Kyungmi Oh, Jae Hong Chang, Kun Woo Park, Dae Hie Lee, Gyu Cheol Han |
1Department of Neurology, Seoul National University College of Medicine, Korea. jisookim@snu.ac.kr
2Department of Otolaryngology-Head & Neck Surgery, Seoul National University College of Medicine, Korea.
3Department of Neurology, Korea University School of Medicine, Korea.
4Department of Otolaryngology-Head & Neck Surgery, Gachon Medical School, Korea. |
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| ABSTRACT |
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The authors report jerky seesaw nystagmus, extorsional downbeating in the ipsilesional eye and intorsional upbeating in the contralesional eye, in a patient with internuclear ophthalmoplegia (INO) from focal pontine lesion. This pattern of nystagmus may occur by disrupting pathways from contralateral posterior and anterior semicircular canals by a lesion in the medial longitudinal fasciculus. Depending on the pathways involved, various patterns of dissociated
torsional-vertical nystagmus may accompany INO. |
| Keywords:
Internuclear ophthalmoplegia; Seesaw nystagmus |
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