The audiogram shows bilaterally symmetrical sensorineural loss.  Tympanograms are normal. Contralateral reflexes are absent bilaterally.

ABR shows prolonged conduction times AU at 21.1 clicks/second, and the morphology is poor at 77.7 clicks/second.

CD-VAT scores were 100% with no head movement, 48% with horizontal head movement, and 100% with vertical head movement.

VEMP is normal.

VNG oculomotor tests (saccade, OPK, smooth pursuit) are all abnormal.

Gaze testing, positional testing, high-frequency head shake and Hallpke are all normal.

Calorics show bilateral hypofunction. Total velocity right ear is 8 degrees/second; left is 7.

• What do these findings indicate? What is your recommendation?