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[The symptom sympathetic maintained pain].

J Schattschneider1, G Wasner, A Binder

  • 1Klinik für Neurologie, Universitätsklinikum Schleswig-Holstein, Campus Kiel. j.schattschneider@neurologie.uni-kiel.de

Schmerz (Berlin, Germany)
|September 27, 2003
PubMed
Summary
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This study demonstrates a direct link between sympathetic nervous system activity and pain perception in humans. By altering body temperature, researchers showed that changes in sympathetic activity physiologically influence nociception, confirming a long-suspected interaction.

Area of Science:

  • Neuroscience
  • Pain Research
  • Physiology

Context:

  • Neuropathic pain syndromes can involve sympathetically maintained pain (SMP).
  • Animal models suggest adrenergic sensitivity and sympathetic-afferent coupling in dorsal root ganglia after nerve injury.
  • The role of these mechanisms in human SMP remains debated.

Purpose:

  • To investigate the direct interaction between physiological sympathetic activity and nociception in humans.
  • To determine if changes in sympathetic nervous system activity influence pain perception.

Summary:

  • Researchers utilized a whole-body thermal suit to modulate sympathetic vasoconstrictor neuron activity through cooling and warming.
  • This manipulation allowed for the first demonstration of a physiological interaction between altered sympathetic activity and nociception in humans.

Related Experiment Videos

  • Findings suggest a direct link between the sympathetic and nociceptive systems.

    • Impact:

    • Provides the first direct evidence of sympathetic-nociceptive interaction in humans.
    • Offers a potential new avenue for understanding and treating sympathetically maintained pain.
    • Validates animal model findings in a human physiological context.