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Bulbar symptoms and episodic aphonia associated with atlanto-occipital subluxation in ankylosing spondylitis
  1. Robin I. Davidson,
  2. H. Richard Tyler
  1. Section of Neurology of the Department of Medicine, Peter Bent Brigham Hospital, U.S.A.
  2. The Department of Neurology, Harvard Medical School, Boston, Massachusetts, U.S.A.


    A patient with intermittent aphonia associated with atlanto-occipital subluxation due to ankylosing spondylitis is presented and discussed. The only other case from the literature is reviewed and compared with our patient, where symptoms and signs of episodic low bulbar disease, presumably due to intermittent vascular insufficiency, were relieved by external bracing.

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