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Delayed auditory brainstem responses in diabetes mellitus
  1. M W Donald,
  2. C E Bird,
  3. J S Lawson,
  4. F J J Letemendia,
  5. T N Monga,
  6. D H C Surridge,
  7. P Varette-Cerre,
  8. D L Williams,
  9. D M L Williams,
  10. D L Wilson
  1. Department of Psychology, Queen's University, Kingston, Ontario, Canada
  2. Faculty of Medicine, Queen's University, Kingston, Ontario, Canada

    Abstract

    Diabetic patients have longer interpeak latencies in the brainstem auditory evoked responses than age-matched controls. The delay is not related to clinical hearing loss or blood glucose level at time of testing. Since waves I and II are normal in latency, the conduction velocity of the eighth nerve is not involved. The delay occurs between waves II and V, which would reflect altered transmission times in auditory brainstem and midbrain structures, and suggests the presence of a central neuropathy in patients with diabetes.

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