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Braz J Otorhinolaryngol. 2017 Nov - Dec;83(6):659-664. doi: 10.1016/j.bjorl.2016.08.014. Epub 2016 Sep 28.

Subjective visual vertical after treatment of benign paroxysmal positional vertigo.

Author information

1
Universidade Federal de São Paulo (Unifesp), Escola Paulista de Medicina (EPM), Programa de Pós-graduação em Distúrbios da Comunicação Humana, Campo Fonoaudiológico, São Paulo, SP, Brazil. Electronic address: maristelamian@yahoo.com.br.
2
Universidade Federal de São Paulo (Unifesp), Escola Paulista de Medicina (EPM), Departamento de Otorrinolaringologia, São Paulo, SP, Brazil.
3
Universidade Federal de São Paulo (Unifesp), Escola Paulista de Medicina (EPM), Disciplina de Otologia e Otoneurologia, São Paulo, SP, Brazil.

Abstract

INTRODUCTION:

Otolith function can be studied by testing the subjective visual vertical, because the tilt of the vertical line beyond the normal range is a sign of vestibular dysfunction. Benign paroxysmal positional vertigo is a disorder of one or more labyrinthine semicircular canals caused by fractions of otoliths derived from the utricular macula.

OBJECTIVE:

To compare the subjective visual vertical with the bucket test before and immediately after the particle repositioning maneuver in patients with benign paroxysmal positional vertigo.

METHODS:

We evaluated 20 patients. The estimated position where a fluorescent line within a bucket reached the vertical position was measured before and immediately after the particle repositioning maneuver. Data were tabulated and statistically analyzed.

RESULTS:

Before repositioning maneuver, 9 patients (45.0%) had absolute values of the subjective visual vertical above the reference standard and 2 (10.0%) after the maneuver; the mean of the absolute values of the vertical deviation was significantly lower after the intervention (p<0.001).

CONCLUSION:

There is a reduction of the deviations of the subjective visual vertical, evaluated by the bucket test, immediately after the particle repositioning maneuver in patients with benign paroxysmal positional vertigo.

KEYWORDS:

Benign paroxysmal positional vertigo; Equilíbrio postural; Inner ear; Orelha interna; Postural balance; Utricle; Utrículo; Vertigem posicional paroxística benigna

PMID:
27746123
DOI:
10.1016/j.bjorl.2016.08.014
[Indexed for MEDLINE]
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