Abstract
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.
Keywords
vestibular diseases - vestibular function tests - head impulse test
