The Video Head Impulse Test in a Case of Suspected Bilateral Loss of Vestibular Function

摘要

>Introduction A patient who had no symptoms suggestive of bilateral loss of vestibular function presented no responses in rotational and caloric tests. >Objectives To demonstrate the importance of the video head impulse test in neuro-otologic diagnosis. >Resumed >Report This patient had a neuro-otologic evaluation and presented no responses in torsion swing tests, caloric tests, and rotational tests in a Bárány chair. The video head impulse test elicited responses in four of the six semicircular canals. >Conclusion Absent responses in caloric and rotatory tests alone are not sufficient to diagnose bilateral loss of vestibular function.