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Revista de otorrinolaringología y cirugía de cabeza y cuello

versión On-line ISSN 0718-4816

Resumen

BREINBAUER K, Hayo et al. Angular vestibular function assessment: Multiaxial Head Impulse Test. Rev. Otorrinolaringol. Cir. Cabeza Cuello [online]. 2013, vol.73, n.1, pp.17-24. ISSN 0718-4816.  http://dx.doi.org/10.4067/S0718-48162013000100003.

Introduction: The Head Impulse Head test represents a quick and simple technique for perioheral vestibular function assessment, by means of exploring the vestíbulo-ocular reflex. It is usually períormed on the horizontal semicircular canals planes, but it can also explore the anterior and posterior canals. Aim: To assess the head impulse test's sensitivity and specificity for the anterior and posterior canals on a bedside scenario, taking the classic caloric test as gold standard. Material and method: Prospective test-assessment study. A head impulse test for every semicircular canal was períormed on patients with indication of vestibular study with caloric test. Results: 118 patients were evaluated, where 49,2%% presente an abnormal caloric test. The head impulse test's sensitivity for the posterior canal canal was 13,1%% (3,2%% for the anterior canal). The test's specificity was 100%% for both vertical canals. On the horizontal plane, sensitivity reached 63,9%%, while specificity was 100%% Discussion: The head impulse test for vertical (anterior and posterior) canal on a bedside scenario is highly specific but poorly sensitive, thus having a relatively low clinical utility. On the contrary the test for the horizontal canal remains a quick and simple tool, with acceptable sensitivy and great sensitivity for assessing vestibular function loss.

Palabras clave : Vestibulo-ocular reflex; functional vestibular tests.

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