The vestibular examination included a Romberg test, gait and cerebellar tests, evaluation of spontaneous and semi-spontaneous nystagmus, the Dix-Hallpike maneuver
for postural vertigo, pendulum eye-tracking, evaluation for optokinetic nystagmus, torsion swing testing, and caloric testing employing the Hallpike two-temperature technique.
Dix-Hallpike maneuver triggered mild vertigo and nystagmus immediately with no features of fatigability or lessening of the symptoms with repeated trials/maneuvers.
Central positional vertigo demonstrates mild vertigo and nystagmus immediately with no features of fatigability or lessening of the symptoms even with repeated Dix-Hallpike maneuver.
The Dix-Hallpike maneuver
doesn't exacerbate her symptoms.
Korres et al hypothesize, particles reverse to the posterior semicircular canal, we would detect benign positional nystagmus during the day-2 or day-7 control Dix-Hallpike maneuver
The 58 patients underwent a follow-up Dix-Hallpike maneuver 48 hours later, and all responded well; there were no episodes of nystagmus, vertigo, or a falling sensation.
During the Dix-Hallpike maneuver, posterior semicircular canal BPPV is indicated by the onset of a burst of up-beating and torsional nystagmus in a counterclockwise direction on the right and a clockwise direction on the left; the nystagmus subsides in a few seconds.
The diagnosis of BPPV had been established by findings on the Dix-Hallpike maneuver.
We acknowledge that our assessment of outcomes was subjective and that we did not perform a posttreatment Dix-Hallpike maneuver to ascertain results objectively.
A Dix-Hallpike maneuver
was done in each patient by VNG, and the entire process was monitored.
Because of the commonly held belief that the source of dizziness during the Dix-Hallpike maneuver
is almost always the undermost ear, this patient's left ear was subjected to the aminoglycoside perfusions.
ENG testing included calibration, identification of spontaneous nystagmus and gaze nystagmus, positional tests, Dix-Hallpike maneuvers
(unless contraindicated because of neck pathology), sinusoidal tracking, optokinetic testing and, in selected patients, alternate binaural bithermal caloric testing (right warm [RW]; right cool [RC]; left warm [LW]; left cool [LC]).