Key result
Among 187 patients diagnosed with BPPV, posterior semi-circular canal involvement was the most common variant (70%), while 24.6% of patients experienced positional vertigo without clear nystagmus.
Why the study?
Diagnosis of BPPV can be complicated due to multiple subtypes and negative physical examination findings.
Population
187 consecutive patients with symptoms suggestive of BPPV at ENT clinic, Teaching Hospital Anuradhapura
Design
Subgroup analysis of a cross-sectional descriptive study
Authors
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Highlights frequent nystagmus-negative positional vertigo; leaves open whether video Frenzel goggles or repeated testing improve subtype detection.
Cross-Sectional (n=187)
No
In patients with suspected BPPV, posterior canal involvement is most common, but a significant proportion have negative positional test findings in light, highlighting the potential need for video Frenzel recording.
Daminda et al. (2024) conducted a cross-sectional in Benign Paroxysmal Positional Vertigo (BPPV) (n=187). Benign Paroxysmal Positional Vertigo (BPPV) was evaluated on Frequency of BPPV subtypes and positional test findings. Among 187 patients diagnosed with BPPV, posterior semi-circular canal involvement was the most common variant (70%), while 24.6% of patients experienced positional vertigo without clear nystagmus.
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