Anterior canal BPPV and apogeotropic posterior canal BPPV: two rare forms of vertical canalolithiasis

@inproceedings{Califano2014AnteriorCB,
  title={Anterior canal BPPV and apogeotropic posterior
canal BPPV: two rare forms of vertical canalolithiasis},
  author={Luigi Califano and Francesca Salafia and Salvatore Mazzone and M. G. Melillo and Marialuisa Califano},
  booktitle={Acta otorhinolaryngologica Italica : organo ufficiale della Societa italiana di otorinolaringologia e chirurgia cervico-facciale},
  year={2014}
}
Posterior canal benign paroxysmal positional vertigo (BPPV) is the most frequent form of BPPV. It is characterized by a paroxysmal positioning nystagmus evoked through Dix-Hallpike and Semont positioning tests. Anterior canal BPPV (AC) is more rare than posterior canal BPPV; it presents a prevalent down beating positioning nystagmus, with a torsional component clockwise for the left canal, counterclockwise for the right canal. Due to the possible lack of the torsional component, it is sometimes… CONTINUE READING
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