Annals of Clinical Neurophysiology

The Korean Society of Clinical Neurophysiology (대한임상신경생리학회)
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Quantitative sudomotor axon reflex test (QSART) as a diagnostic tool of small fiber neuropathy

  • Suh, Bum Chun (Department of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine)
  • Received : 2022.03.13
  • Accepted : 2022.03.21
  • Published : 2022.04.30
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Abstract

Small fiber neuropathy is a painful neuropathy that cannot be assessed using nerve conduction studies. A skin biopsy and quantitative sensory testing (QST) are the gold standards for small fiber neuropathy diagnosis. However, a skin biopsy is invasive and commercially unavailable in Korea. QST is a method involving a thermal threshold, but its results can be affected by cognition as well as lesions of the central nervous system. Quantitative sudomotor axon reflex test (QSART) is a quantitative method of assessing sweat glands innervated by small fibers. In this review, we assessed the utility of QSART in evaluating small fiber neuropathy.

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References

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