06/03/2026
Very clear example of left posterior canal canalithiasis!
L torsional upbeating nystagmus in sidelying dix hallpike with very short latency lasting seconds.
Treated with semont maneuver x1 and negative on retest!
This was however just a small part of her exam. Other clinical findings were significant for vestibular hypofunction and gaze instability.
Also some oculomotor impairments due to comorbid myasthenia gravis.
Just goes to show that vestibular disorders don't always occur in isolation. If working with dizzy patients regularly, it isn't uncommon to see multiple things happening at once.
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