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Acta Otorrinolaringol Esp. 2016 May-Jun;67(3):156-61. doi: 10.1016/j.otorri.2015.07.005. Epub 2015 Nov 21.

Relationship between video head impulse test (vHIT) and caloric test in patients with vestibular neuritis.

[Article in English, Spanish]

Author information

1
Servicio de ORL, Departamento de Cirugía, Hospital Clínico Universitario de Valencia, Universitat de València, Valencia, España. Electronic address: jauremar88@gmail.com.
2
Servicio de ORL, Hospital Universitario de Torrevieja, Alicante, España.
3
Servicio de ORL, Departamento de Cirugía, Hospital Clínico Universitario de Valencia, Universitat de València, Valencia, España.

Abstract

INTRODUCTION AND OBJECTIVES:

The caloric test is the gold standard for the loss of vestibular function diagnosis. The Video Head Impulse Test (vHIT) assesses the same reflex by using a video- assisted examination of the impulsive maneuver. We intend to compare the variation of results of the vHIT and the caloric test in patients with vestibular neuritis with respect to their initial condition at two different moments of their evolution and to check the level of correlation between them and with that of the DHI test

METHODS:

We explored 20 patients with neuritis by using both vHIT and the caloric test on the same day. We assessed the correlation between these two tests and with the DHI test for each patient at two different moments of their evolution.

RESULTS:

We calculated gain asymmetry and compared it with the canal paresis, but we found neither a linear correlation between them, nor a correlation between the DHI test or improvement of these two other tests. We conclude that the covert saccades maintain a similar speed whilst present in the VHIT, but the overts diminish their speed over time.

CONCLUSIONS:

The VHIT and the caloric test show different responses of the vestibulo-ocular reflex, because they stimulate different frequencies of this reflex. No correlation was found between the VHIT, the caloric test and the DHI test. The tests appear to complement one another.

KEYWORDS:

Caloric test; Diagnosis; Diagnóstico; Dizziness Handicap Inventory; Neuritis vestibular; Prueba calórica; Vertigo; Vestibular neuritis; Video Head Impulse Test; Videonistagmografía; Videonystagmography; Vértigo

PMID:
26611424
DOI:
10.1016/j.otorri.2015.07.005
[Indexed for MEDLINE]
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