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A Clinical Sign of Canal Paresis
Abstract
Unilateral loss of horizontal semicircular canal function, termed canal paresis, is an important finding in dizzy patients. To our knowledge, apart from head-shaking nystagmus, no clinical sign of canal paresis has yet been described and the term derives from the characteristic finding on caloric tests: little or no nystagmus evoked by either hot or cold irrigation of the affected ear. We describe a simple and reliable clinical sign of total unilateral loss of horizontal semicircular canal function: one large or several small oppositely directed, compensatory, refixation saccades elicited by rapid horizontal head rotation toward the lesioned side. Using magnetic search coils to measure head and eye movement, we have validated this sign in 12 patients who had undergone unilateral vestibular neurectomy.
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Cited by
Kattah, J. C., Talkad, A. V., Wang, D. Z., Hsieh, Y.-H., & Newman-Toker, D. E. (2009) · Stroke · doi:10.1161/strokeaha.109.551234 · Cited by 1,163
Strupp, M., Kim, J.-S., Murofushi, T., Straumann, D., Jen, J. C., Rosengren, S. M., Della Santina, C. C., & Kingma, H. (2017) · Journal of Vestibular Research · doi:10.3233/ves-170619 · Cited by 592
“the tip of the examiner’s nose, which indicates a deficient VOR [27].”
BackgroundInfluentialPredictors of clinical recovery from vestibular neuritis: A prospective study
Cousins, S., Kaski, D., Cutfield, N., Arshad, Q., Ahmad, H., Gresty, M. A., Seemungal, B. M., Golding, J., & Bronstein, A. M. (2017) · Annals of Clinical and Translational Neurology · doi:10.1002/acn3.386 · Cited by 156
Moon, I. S., Kim, J. S., Choi, K. D., Kim, M.-J., Oh, S.-Y., Lee, H., Lee, H.-S., & Park, S.-H. (2009) · Stroke · doi:10.1161/strokeaha.108.527762 · Cited by 135
Schniepp, R., Wuehr, M., Huth, S., Pradhan, C., Brandt, T., & Jahn, K. (2014) · Journal of Neurology · doi:10.1007/s00415-014-7259-1 · Cited by 81
Metadata
- Authors
- Halmagyi, G. M., & Curthoys, I. S.
- Venue
- Archives of Neurology
- Publisher
- American Medical Association (AMA)
- Published
- 1988-07-01
- Volume
- 45
- Issue
- 7
- Pages
- 737-739
- ISSN
- 0003-9942 (ISSN-L)
- OpenAlex
- W2115901982
- Cited by
- 1,284
- References
- 0
- FWCI
- 1.97
- Type
- journal article
- Language
- en
- Open access
- closed
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- Halmagyi, G. M., & Curthoys, I. S. (1988). A Clinical Sign of Canal Paresis. Archives of Neurology. https://doi.org/10.1001/archneur.1988.00520310043015
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
