Nystagmus Transformation in Benign Paroxysmal Positional Vertigo
Author Information
Author(s): Paolo Vannucchi, Rudi Pecci
Primary Institution: University of Florence
Hypothesis
Can the apogeotropic form of lateral semicircular canal benign paroxysmal positional vertigo transform into the geotropic form?
Conclusion
The transformation from apogeotropic to geotropic nystagmus can occur gradually after multiple head rotations.
Supporting Evidence
- The patient experienced a gradual transformation of nystagmus after multiple head rotations.
- Initial nystagmus was apogeotropic, which later changed to geotropic.
- The transformation required about forty minutes and multiple rotations.
Takeaway
Sometimes, when people have a type of dizziness called BPPV, it can change from one kind to another after moving their head around a lot.
Methodology
The patient underwent various tests including otologic inspection, audiometric testing, and nystagmus observation with infrared video cameras.
Limitations
The study is based on a single case report, limiting generalizability.
Participant Demographics
73-year-old male with a history of right Menière's disease.
Digital Object Identifier (DOI)
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