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Audiology Research
Volume 9
Issue 2
10.4081/audiores.2019.228
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Audiology Research is published by MDPI from Volume 10 Issue 2 (2020). Previous articles were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence, and they are hosted by MDPI on mdpi.com as a courtesy and upon agreement with PAGEPress.
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Article

Apogeotropic variant of horizontal semicircular canal benign paroxysmal positional vertigo: Where are the particles?

by
Bernardo Faria Ramos
1,*,
Renato Cal
1,
Camila Martins Brock
1,
Pedro Luiz Mangabeira Albernaz
1 and
Francisco Zuma e Maia
3
1
Department of Otorhinolaryngology, Espirito Santo Federal University, Vitória, Brazil
2
Department of Otorhinolaryngology, Parà Federal University, Belém, Brazil
3
Department of Otorhinolaryngology, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
4
Federal University of São Paulo, São Paulo, Brazil
*
Author to whom correspondence should be addressed.
Audiol. Res. 2019, 9(2), 228; https://doi.org/10.4081/audiores.2019.228
Submission received: 25 June 2019 / Revised: 8 August 2019 / Accepted: 17 August 2019 / Published: 29 August 2019

Abstract

The apogeotropic variant of horizontal semicircular canal benign paroxysmal positional vertigo (HC-BPPV) is attributed to free floating particles in the anterior arm of the lateral semicircular canal – particles attached to the cupula facing the canal or particles attached to the cupula facing the utricle. Zuma e Maia described a new treatment for both canalithiasis of the anterior arm of the horizontal semicircular canal (HC) and cupulolithiasis of the HC. Seventeen patients with apogeotropic HC-BPPV were enrolled and treated with Zuma’s Maneuver. During the repositioning of the particles to the utricule, we observed the direction of the nystagmus evoked in each step of this maneuver in order to know where the otoliths were probably located. Eight patients were diagnosed with canalithiasis of the anterior arm, six patients with cupulolithiasis with the particles facing the canal and three patients with cupulolithiasis with the particles facing the utricle. Our data suggest that we can assume where the otoliths are probably located by observing the pattern of the nystagmus evoked in each step of the Zuma’s Maneuver in patients with apogeotropic HC-BPPV.
Keywords: Apogeotropic horizontal canal benign paroxysmal positional vertigo; Vertigo; Repositioning maneuver Apogeotropic horizontal canal benign paroxysmal positional vertigo; Vertigo; Repositioning maneuver

Share and Cite

MDPI and ACS Style

Ramos, B.F.; Cal, R.; Brock, C.M.; Mangabeira Albernaz, P.L.; Zuma e Maia, F. Apogeotropic variant of horizontal semicircular canal benign paroxysmal positional vertigo: Where are the particles? Audiol. Res. 2019, 9, 228. https://doi.org/10.4081/audiores.2019.228

AMA Style

Ramos BF, Cal R, Brock CM, Mangabeira Albernaz PL, Zuma e Maia F. Apogeotropic variant of horizontal semicircular canal benign paroxysmal positional vertigo: Where are the particles? Audiology Research. 2019; 9(2):228. https://doi.org/10.4081/audiores.2019.228

Chicago/Turabian Style

Ramos, Bernardo Faria, Renato Cal, Camila Martins Brock, Pedro Luiz Mangabeira Albernaz, and Francisco Zuma e Maia. 2019. "Apogeotropic variant of horizontal semicircular canal benign paroxysmal positional vertigo: Where are the particles?" Audiology Research 9, no. 2: 228. https://doi.org/10.4081/audiores.2019.228

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