Objective: To show that a negative Dix-Hallpike test or Pagnini-McClure test may convert into positive after head shaking in cases of semicircular canalith jam.
Methods: This is a retrospective study, where 768 cases of BPPV were studied of which 36 were found to have canalith jam.
Results: Thirty-six patients (4.7%) presented with canalith jam; 4.8% of posterior canal BPPV and 3.7% of lateral canal BPPV were attributed to canalith jam.
Conclusion: Immediate repeated testing for BPPV allows us to identify undiagnosed cases of BPPV where canalith jam has occurred. It is a cost-effective technique that provides benefits for clinicians, patients, and the healthcare system.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9195032 | PMC |
| http://dx.doi.org/10.1002/lio2.800 | DOI Listing |
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