Primary orthostatic tremor

BMJ 1995; 310 doi: https://doi.org/10.1136/bmj.310.6973.143 (Published 21 January 1995) Cite this as: BMJ 1995;310:143
  1. Britton T C,
  2. Thompson P D
  1. Senior registrar in neurology The National Hospital, London WCIN 3BG
  2. Associate professor of medicine Royal Adelaide Hospital, Adelaide, South Australia

    Causes difficulty in standing still

    Heilman described the clinical features of primary orthostatic tremor 10 years ago.1 Subsequent studies have elucidated the specific neurophysiological features of the condition, which clearly distinguish it from other tremulous disorders of the legs.2 3 4 Although the condition is rare, the incidence of this recently described condition remains unknown. Identification of cases is still increasing, with wider recognition of the characteristic clinical symptoms. Doctors should be aware of the typical symptom complex of orthostatic tremor, as many patients are wrongly labelled as suffering from psychiatric symptoms.5

    The most prominent and characteristic symptom reported by patients with primary orthostatic tremor is unsteadiness when standing still—for example, …

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