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360-Degree canalith repositioning procedure for the horizontal canal
1ENT Institute, Head and Neck Department, University of Trieste, Cattinara Hospital, Trieste, Italy.
Summary
A modified 360-degree canalith repositioning procedure (CRP) effectively treats benign positional vertigo (BPV) of the horizontal semicircular canal (HSC). Most patients achieved complete recovery after a single treatment, highlighting the procedure's efficacy.
Area of Science:
- Neurology
- Otolaryngology
- Vestibular System Disorders
Background:
- Benign positional vertigo (BPV) is a common vestibular disorder.
- The horizontal semicircular canal (HSC) is frequently involved in BPV.
- Standard canalith repositioning procedures (CRP) aim to treat BPV by repositioning otolith debris.
Purpose of the Study:
- To assess the effectiveness of a modified 360-degree CRP for HSC-BPV.
- To evaluate specific modifications to the standard CRP technique.
Main Methods:
- A prospective trial involving 72 patients diagnosed with HSC-BPV.
- Patients underwent a modified 360-degree CRP, including specific head positioning and manual oscillation.
Main Results:
- 62 patients were treated for canalolithiasis.
- 82.2% (51 out of 62) of patients experienced complete recovery after a single modified 360-degree CRP.
- The modified technique facilitated the movement of free-floating debris into the utricle.
Conclusions:
- A modified 360-degree CRP is an effective treatment for HSC-BPV.
- Specific rotational directions and head positioning are crucial for successful debris repositioning.
- Manual head oscillation may be an alternative to mechanical vibrators for mastoid oscillation.