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Updated: Jan 24, 2026
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Posterior Semicircular Canal Approach for Inner Ear Gene Delivery in Neonatal Mouse
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Bilateral Posterior Canal Benign Paroxysmal Positional Vertigo Tends to Reoccur
Lea Pollak1,2, Tal Michael3
1Department of Neurology, Barzilai Medical Center, Ashkelon (affiliated to the Ben Gurion University of the Negev).
Summary
Bilateral posterior canal benign paroxysmal positional vertigo (bil-BPPV) recurred more often than expected, particularly in older patients with longer follow-up periods. Recurrences were frequently the same type of BPPV, suggesting individual vulnerability.
Area of Science:
- Otolaryngology
- Neurology
- Vestibular Disorders
Background:
- Benign paroxysmal positional vertigo (BPPV) is a common vestibular disorder.
- Bilateral posterior canal BPPV (bil-BPPV) is a specific subtype with varying recurrence patterns.
- Understanding recurrence rates and types is crucial for patient management.
Purpose of the Study:
- To analyze the clinical characteristics of patients with bil-BPPV.
- To determine the rate and types of recurrence in bil-BPPV.
- To compare patients with single versus multiple BPPV episodes.
Main Methods:
- Retrospective case review of approximately 2,050 BPPV patients (2003-2018).
- Identified 60 patients (2.9%) with bil-BPPV.
- Analyzed recurrence patterns, including type and canal involvement.
Main Results:
- 28 (47%) patients experienced multiple BPPV episodes.
- Patients with multiple episodes were older and had longer follow-up.
- Posterior canal canalolithiasis (37.5%) and bil-BPPV (31.3%) were the most frequent recurrences.
- Combined posterior and horizontal BPPV occurred in 12.5%.
Conclusions:
- The prevalence of bil-BPPV may be lower than previously reported due to stricter criteria.
- Older age and longer follow-up in recurrent cases support degenerative theories.
- bil-BPPV recurred more frequently than anticipated, possibly due to individual vulnerability or underlying pathology.
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