Acute Unilateral Peripheral Vestibular Loss.
Age at test 61

Key Signs:
Shows the features typical of patients with balance problems due to vestibular loss - excessive trunk pitch velocity when tested standing on two legs, eyes closed, on foam. The patient tends to fall backwards and finally has to be caught at 13secs, see traces below.

Standing on two legs, eyes closed, on foam

Roll, pitch angle plot Pitch velocity range plot

Red is pitch angle and blue is the roll angle. Peak-to-peak (range) and the 90% range for velocity is shown compared to normal values (median, 5% and 95% range are shown by the triangle and vertical bar).

Summary Data:
Shows that for this patient, there are two general situations where poor balance control is most apparent. Tasks requiring exact control of trunk roll or tasks conducted with eyes closed. Thus the patient cannot perform 1-legged stance eyes open, has difficulties control-ling trunk roll walking up stairs, and therefore performs this and other tasks (e.g. barriers) slowly. The patient also has excessive trunk sway walking eyes closed. Functionally this will mean that the patient will have difficulty with gait tasks requiring simultaneous fixation or in poor lighting conditions.

Show clearly that the patient has a balance problem. has a balance problem.

BCS summary plot
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