How Good Are We in Evaluating a Bedside Head Impulse Test?

ABSTRACT:

Objectives

Clinicians performing a horizontal head impulse test (HIT) are looking for a corrective saccade. The detection of such saccades is a challenge. The aim of this study is to assess an expert's likelihood of detecting corrective saccades in subjects with vestibular hypofunction.

Design

In a prospective cohort observational study at a tertiary referral hospital, we assessed 365 horizontal HITs performed clinically by an expert neurootologist from a convenience sample of seven patients with unilateral or bilateral deficient vestibulo-ocular reflex (VOR). All HITs were recorded simultaneously by video-oculography, as a gold standard. We evaluated saccades latency and amplitude, head velocity, and gain.

Results

Saccade amplitude was statistically the most signific

SUBMITTER: Korda A 

PROVIDER: S-EPMC7722467 | biostudies-literature | 2020 Nov/Dec

REPOSITORIES: biostudies-literature