J Korean Bal Soc.
2007 Dec;6(2):217-221.
Resolution of Canal Paresis after Treatment in Benign Paroxysmal Positional Vertigo of the Horizontal Canal
- Affiliations
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- 1Department of Otorhinolaryngology, Seoul National University College of Medicine, Korea. jwkoo99@snu.ac.kr
- 2Department of Neurology, Seoul National University College of Medicine, Korea.
- 3Research Center for Sensory Organs, Medical Research Center, Seoul National University, Korea.
Abstract
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Canal paresis in patients with benign paroxysmal positional vertigo (BPPV) has been variously reported from 26 to 50%. In such cases, BPPVs are developed secondary to accompanying vestibulopathy or other underlying inner ear diseases. Also the side of canal paresis is regarded as involved ear in the lateralization of horizontal canal BPPV (HC-BPPV), in which lateralization is sometimes ambiguous just by Eward's second law. In this case, authors report a woman who had HC-BPPV and pathologic canal paresis which resolved after canalith repositioning. This case may imply that dislodged particles block the endolymphatic flow resulting canal paresis.