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Related Experiment Videos

Focal (segmental) dyshidrosis in syringomyelia.

K Sudo1, N Fujiki, S Tsuji

  • 1Department of Neurology, Hokkaido University School of Medicine, Sapporo, Japan. sudo@med.hokudai.ac.jp

Journal of Neurology, Neurosurgery, and Psychiatry
|June 17, 1999
PubMed
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Syringomyelia can cause segmental hyperhidrosis (excessive sweating) or hypohidrosis (reduced sweating). Early-stage syringomyelia may present with hyperhidrosis, indicating a less damaged spinal cord.

Area of Science:

  • Neurology
  • Dermatology
  • Clinical Medicine

Background:

  • Dyshidrosis, encompassing hyperhidrosis and hypohidrosis, lacks clear mechanistic understanding.
  • The distinction between hyperhidrosis and hypohidrosis in the context of syringomyelia is not well-defined.

Purpose of the Study:

  • To elucidate the features and mechanisms of dyshidrosis in patients with syringomyelia and Chiari malformation.
  • To differentiate between hyperhidrosis and hypohidrosis in this patient population.

Main Methods:

  • Prospective analysis of clinical hidrosis features in 30 patients with syringomyelia and Chiari malformation.
  • Classification of patients into hypohidrosis, hyperhidrosis, and normohidrosis groups.

Main Results:

Related Experiment Videos

  • 40% had normohidrosis, 33.3% segmental hyperhidrosis, and 26.7% segmental hypohidrosis.
  • Hypohidrosis group showed significantly lower Karnofsky functional status and longer duration from syringomyelia onset compared to hyperhidrosis group.
  • A significant negative correlation was found between disease duration and performance score.

Conclusions:

  • Early syringomyelia may cause sympathetic preganglionic neuron hyperactivity, leading to focal hyperhidrosis.
  • Progressive tissue damage in syringomyelia leads to reduced sweating (hypohidrosis).
  • Focal hyperhidrosis and normohidrosis may indicate a relatively intact spinal cord.