The authors have no funding, financial relationships, or conflicts of interest to disclose.
Canal switch after canalith repositioning procedure for benign paroxysmal positional vertigo†
Article first published online: 1 MAY 2012
Copyright © 2012 The American Laryngological, Rhinological, and Otological Society, Inc.
Volume 122, Issue 9, pages 2076–2078, September 2012
How to Cite
Lin, G. C., Basura, G. J., Wong, H. T. and Heidenreich, K. D. (2012), Canal switch after canalith repositioning procedure for benign paroxysmal positional vertigo. The Laryngoscope, 122: 2076–2078. doi: 10.1002/lary.23315
- Issue published online: 23 AUG 2012
- Article first published online: 1 MAY 2012
- Accepted manuscript online: 29 MAR 2012 06:21AM EST
- Manuscript Accepted: 29 FEB 2012
- Manuscript Revised: 21 FEB 2012
- Manuscript Received: 12 JAN 2012
- Benign paroxysmal positional vertigo;
- canalith repositioning
Canal switch is a complication following canalith repositioning procedure (CRP) for posterior canal benign paroxysmal positional vertigo (BPPV). Instead of being returned to the utricle, the loose otoconia migrate into the superior or horizontal semicircular canal. Patients remain symptomatic, and treatment can be ineffective unless the switch is recognized and additional repositioning maneuvers directed toward the appropriate semicircular canal are performed. This report provides the first videographic documentation of canal switch involving conversion of unilateral posterior semicircular canal BPPV to geotropic horizontal canalithiasis. Laryngoscope, 2012